Commit graph

308 commits

Author SHA1 Message Date
Dorian Portillo
9aa65ae3f8
feat: ✨ resolve Nuxt/Nitro auto-imports in TypeScript scope resolver (#2026)
Some checks are pending
CodeQL / Analyze (javascript-typescript) (push) Waiting to run
CodeQL / Analyze (python) (push) Waiting to run
Gitleaks / gitleaks (push) Waiting to run
Publish / Classify release event (push) Waiting to run
Publish / RC guard (marker + release-PR skip) (push) Blocked by required conditions
Publish / ci (push) Blocked by required conditions
Publish / Publish to npm (push) Blocked by required conditions
Publish / Build & Push RC Docker images (push) Blocked by required conditions
Scorecard / Scorecard analysis (push) Waiting to run
Trivy Image Scan / Trivy (gitnexus-cli) (push) Waiting to run
Trivy Image Scan / Trivy (gitnexus-web) (push) Waiting to run
* feat: ✨ resolve Nuxt/Nitro auto-imports in TypeScript scope resolver

* fix: 🐛 skip self-referential edges in Nuxt auto-import emission

* fix: 🐛 address Sourcery review -- gate Nitro scan on imports.d.ts and pre-index explicit imports

* fix: scope Nuxt auto-import resolution

* fix: address Nuxt auto-import review follow-ups

* fix(ingestion): capture only LHS binding names in Nitro server-util exports

The Nuxt server-util export scanner ran a declarator regex over the whole
`export const …` right-hand side, so it registered RHS tokens as auto-import
names: arrow-function parameters (`export const f = (event) => …` → `event`),
object-literal keys (`export const c = { onError } ` → `onError`), and bare
operands. It also dropped generic-typed declarators
(`export const x: Map<a, b> = …`) because the type-annotation skip broke at the
comma inside the generic. Both produced wrong/missing auto-import CALLS edges.

Capture only the leading binding name of each top-level declarator via a
depth-aware comma splitter (tracks (), [], {}, <>), skipping destructuring
patterns. Nitro auto-imports only surface top-level binding names, so the RHS
is never parsed. Adds unit coverage for the param/object-key/operand/generic
and multi-declarator forms.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T4W25WLfYD1JNy8icxeLPU

* fix(ingestion): stop Nitro server callers resolving client composables

`getNuxtAutoImportEntry` fell back to the client composable map when a
`server/api|routes|middleware` caller's name had no `server/utils` entry. But
Nitro only auto-imports `server/utils/**` into the server context — app
`composables/` are Vue-app-only — so that fallback minted CALLS/IMPORTS edges
Nitro never creates (e.g. a server route "calling" a composable it cannot see
without an explicit import).

Server callers now resolve the server map only. Restructure the barrel-directory
integration test to use a client caller (which legitimately auto-imports the
composable) so `index.*` resolution stays covered, and add a negative assertion
that `server/api/route.ts` emits no edge to `composables/*` while its real
`server/utils` call still resolves. Unit test locks that a server caller does
not fall back to a client-only name.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T4W25WLfYD1JNy8icxeLPU

* fix(ingestion): let unresolved explicit imports shadow Nuxt auto-imports

The explicit-import suppression index only recorded import local names whose
edge resolved to a file (`edge.targetFile !== null`). An explicit import from an
unresolved external package — `import { useAuto } from '@vueuse/core'; useAuto()`
— therefore escaped suppression, and the post-resolution hook emitted a spurious
Nuxt auto-import CALLS edge for a name the file already imports explicitly.

Record the local name regardless of whether the import resolved: an explicit
import is authoritative shadowing intent. Adds an integration fixture importing
from an external package and a (non-vacuous) assertion that it emits no nuxt
edge.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T4W25WLfYD1JNy8icxeLPU

* fix(ingestion): let type-annotated params shadow Nuxt auto-imports

hasLocalBindingInScopeChain only consulted scope.bindings, but type-annotated
function parameters live in scope.typeBindings (the TS scope query records them
as `@type-binding.parameter`, not `@declaration`). A parameter named like a
composable therefore failed to suppress the auto-import, leaking a spurious
CALLS edge.

Also check scope.typeBindings for the name (same-file scopes only). typeBindings
holds value-space binders' type facts (parameter annotations, `self`, variable
annotations) and never a pure type that belongs to callable space, so this
cannot over-suppress a real auto-import.

Documents the residual: function-typed params (`p: () => void`), untyped params,
destructured locals, and catch-clause vars are captured by neither map and still
leak — closing that needs shared scope-query changes beyond this feature, left
as a follow-up. Also adds a no-vacuous-pass guard to the shadowing/noise test.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T4W25WLfYD1JNy8icxeLPU

* fix(ingestion): treat server/plugins and server/tasks as Nitro runtime

isNitroServerRuntimeFile only matched server/api, server/routes, and
server/middleware. Nitro also auto-imports server/utils into server/plugins
and (since Nitro 2.6) server/tasks, so callers there were misrouted to the
client composable map. Extend the prefix set (now a named constant) to cover
them.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T4W25WLfYD1JNy8icxeLPU

* fix(ingestion): merge duplicate JSDoc on collectImportsDts

Two consecutive JSDoc blocks preceded collectImportsDts; tooling (IDEs,
TypeDoc) attaches only the last one, silently dropping the descriptive block.
Fold the "returns true when read" line into the descriptive block as a
`@returns` tag.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T4W25WLfYD1JNy8icxeLPU

* fix(ingestion): contain .nuxt/imports.d.ts source resolution to the repo

A crafted `.nuxt/imports.d.ts` source such as `from '../../../../etc/passwd'`
passes the project-local relative-path check but resolves outside the analyzed
repo, causing fs.stat probes against arbitrary host paths. Skip any source that
resolves outside repoRoot before touching the filesystem.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T4W25WLfYD1JNy8icxeLPU

---------

Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-24 12:32:51 +01:00
Gergő Magyar
8886d55008
feat(ingestion): make doc comments searchable across all languages (#2286)
* feat(ingestion): add shared leading-doc-comment description extractor (#2270)

Add `extractLeadingDocComment` plus a language-neutral
`createLeadingDocDescriptionExtractor` factory and a shared
`DOC_BEARING_LABELS` set to `utils/ast-helpers.ts`. The helper pulls the
normalized text of a leading doc comment off a definition node's preceding
named sibling, covering both block doc comments (Javadoc/KDoc/JSDoc/PHPDoc/
Doxygen, opened by double-star or bang) and runs of line doc comments
(triple-slash, bang-slash, or caller-supplied prefixes such as Go's
double-slash or Ruby's hash). Grammar-agnostic by prefix match; widens
`getDefinitionNodeFromCaptures` to accept the optional-valued capture map.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Eh2UmA6f2p25F3ow75Hjzx

* feat(languages): surface leading doc comments as description for all languages (#2270)

Register the leading-doc `descriptionExtractor` on every documentable
provider so Javadoc/KDoc/JSDoc/Doxygen/godoc/RDoc/`///` doc text lands in the
`description` column and reaches the embedding metadata header — making
methods/types semantically searchable by doc-only terms, matching the
behavior Python (docstring) and PHP (Eloquent) already had.

- Java, Kotlin, TypeScript, JavaScript, C, C++, C#, Dart, Rust, Swift: default
  config (block + triple-slash/bang-slash doc comments).
- Go: godoc double-slash leading comments.
- Ruby: leading hash (RDoc/YARD) comments.
- PHP: existing Eloquent metadata takes precedence, else PHPDoc docblock.

Field/property/variable/const docs are intentionally out of scope.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Eh2UmA6f2p25F3ow75Hjzx

* fix(review): apply autofix feedback (#2270)

Code-review autofix pass on the leading-doc-comment extractor:
- Enforce start-row adjacency in the line-comment run so a doc run stops at a
  blank line (godoc/RDoc/rustdoc semantics). Prevents a Go license/earlier `//`
  block or a Ruby shebang + `# frozen_string_literal:` magic comment, separated
  by a blank line, from being absorbed into the first declaration's
  description. Adjacency uses startPosition.row (reliable across grammars).
- Fix the degenerate empty comment `/**/` producing a spurious `/` description.
- PHP: compose createLeadingDocDescriptionExtractor() as the docblock fallback
  instead of duplicating its body, and widen the param to CaptureMap to match
  the LanguageProvider hook contract.
- Drop the factory's unused `labels` option (no consumer overrides it).
- Add tests: degenerate `/**/`, multi-line `///` run, `//!` inner doc, `/*!`
  Doxygen block, Go/Ruby blank-line non-attachment + two-block adjacency, and
  PHP Eloquent-metadata-wins-over-docblock ordering.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Eh2UmA6f2p25F3ow75Hjzx

* fix(ingestion): resolve exported TS/JS JSDoc via export_statement wrapper

Exported TS/JS declarations dropped their JSDoc: the TS query captures the
inner function_declaration/class_declaration, whose previousNamedSibling is
null because the JSDoc precedes the wrapping export_statement (PR #2286 review,
reproduced). Add a wrapperNodeTypes option to extractLeadingDocComment (folded
into a LeadingDocCommentOptions object threaded through the factory); when the
captured node yields no doc and its parent type is a configured wrapper, retry
from the parent. TS/JS providers pass ['export_statement']. Language config
stays at the call site (RFC #909). Mirrors the existing walk-up in
languages/javascript/captures.ts for JSDoc params.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): bound DOC_BEARING_LABELS to embeddable labels

Module/Delegate/Annotation were doc-bearing but absent from EMBEDDABLE_LABELS,
so their descriptions were extracted and written to the DB yet never embedded
or searchable (PR #2286 review) — wasted work, and the factory JSDoc overstated
"becomes semantically searchable". Remove those three labels so DOC_BEARING_LABELS
is a subset of EMBEDDABLE_LABELS, narrow the JSDoc, and add a subset-invariant
unit test to guard against drift. Making those labels (and C++ `Template`)
searchable needs an embedding-pipeline/schema change and is left as a follow-up.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): skip file-top license/header blocks as descriptions

A file-top /** … */ license/copyright/overview block has no package/import
sibling to shield it from the first declaration, so it was absorbed as that
symbol's description and polluted the embedding text (PR #2286 review). The
block-comment branch already cannot use a strict row-adjacency check (grammars
fold the trailing newline into the comment node), so match header markers
instead — SPDX-License-Identifier, @license/@file/@fileoverview, "Licensed
under", and copyright-with-(c)/year. Markers are specific enough not to fire on
an ordinary doc that merely mentions the word "copyright" (over-fire guard test).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): ignore Go/Ruby directive & magic comments in doc runs

Go build/tool directives (//go:build, //go:generate, // +build, //nolint, //line)
and Ruby magic comments / shebang (# frozen_string_literal:, # encoding:, # -*-,
#!, …) sitting directly above a symbol were folded into its description and
polluted the embedding text (PR #2286 review). Add a lineDirectivePrefixes option;
a matching line is skipped in the doc run (skip-and-continue, so a real doc above
an interleaved directive is still collected — godoc/RDoc semantics). Go and Ruby
providers supply their own directive prefixes (RFC #909 — config at the call site).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): guard descriptionExtractor call against throws

A throw inside any provider's descriptionExtractor escaped processFileGroup to
the language-group catch, which treats any throw as "parser unavailable" and
silently drops every remaining file in the group (PR #2286 review). Wrap the
call in try/catch + reportWarning, mirroring the adjacent extractTemplateConstraints
guard. Defensive parity — no behavior change on the success path.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): treat Rust //! and /*! as inner docs

Rust //! and /*! are INNER doc comments (they document the enclosing item/module),
not the following item, but the shared helper attached them to the next definition
(PR #2286 review; a test even enshrined the wrong behavior). Add a blockDocPrefixes
option (default ['/**','/*!']); the Rust provider opts out of both inner-doc markers
(lineCommentPrefixes ['///'], blockDocPrefixes ['/**']). Doxygen //! and /*! keep
working for C/C++ via the defaults. Flip the Rust //! test to a negative assertion
and add a Rust /*! negative case.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): strip bidi/zero-width controls from doc descriptions

Doc-comment text is attacker-influenceable (any indexed repo) and is returned
verbatim to MCP clients, so a description could smuggle Trojan-Source-style bidi
overrides or zero-width characters (PR #2286 review). Strip U+202A–202E,
U+2066–2069, U+200B–200D and U+FEFF in the doc-comment normalization path
(block + line). Scoped to the description path only — global sanitizeUTF8 is
deliberately left alone (pre-existing, affects all fields). Implemented with a
code-point predicate so no literal invisible bytes live in the source.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(ingestion): doc-comment helper maintainability cleanups

PR #2286 review nits (no behavior change): drop the unused `export` on
DEFAULT_LINE_DOC_PREFIXES (no importer outside ast-helpers.ts); widen
getLabelFromCaptures' captureMap param to `Record<string, SyntaxNode | undefined>`
to match getDefinitionNodeFromCaptures (all accesses are truthiness-guarded); and
merge the split ast-helpers import statements in dart/ruby/rust into one each.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(architecture): document descriptionExtractor LanguageProvider hook

descriptionExtractor is now a near-universal LanguageProvider field (issue #2270)
but was missing from the architecture "Key fields" table (PR #2286 review). Add a
row describing it and the shared createLeadingDocDescriptionExtractor factory.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(ingestion): end-to-end description searchability for exported symbols

The unit tests stop at the descriptionExtractor hook; nothing proved a doc
comment survives the full parse pipeline into node.properties.description (the
field the embedding metadata header reads) — the exact gap that hid the exported
TS/JS regression (PR #2286 review). Add an integration test running the real
worker pipeline over an exported, JSDoc'd TS function and asserting its node
description carries the doc text. Verified locally against a built worker
(20s); runs in CI via pretest:integration build.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* style(ingestion): prettier-wrap a long line in the doc-comment test

Formatting-only follow-up to the U3/U7 test additions so `quality / format` is
green. No behavior change.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-24 08:36:55 +01:00
henry201605
0936553d63
fix(ingestion/routes): recognise Spring method-level array-form route mappings (#2281)
* feat(routes): extract Spring method-level array-form routes in ingestion + extractor parity test (#2138 follow-up)

ingestion's `extractSpringRoutes` (route-extractors/spring.ts) matched only a
single string literal on `@(Get|...)Mapping`, so the array form
`@GetMapping({"/a","/b"})` produced no graph Route node — while the group-layer
`java.ts` scan did match it. That divergence was the root of the #2265 array-form
parse-skip gap.

- spring.ts: add the array-form alternation
  `[(string_literal) @value (element_value_array_initializer (string_literal) @value)]`
  to the two method-declaration query branches (positional + `path=`/`value=`),
  mirroring the group query. A multi-element array yields one match per element,
  so the Phase 2 loop emits one route per path with no other change. Class-level
  `@RequestMapping` array prefixes remain single-literal (rare; left to a
  follow-up).
- test: spring-route-parity runs one shared Java fixture through BOTH extractors
  (ingestion `extractSpringRoutes` + group `JAVA_HTTP_PLUGIN.scan`) and asserts
  identical provider {method,path} sets — the parity guard the maintainer asked
  for in #2078, so the two Spring extractors can't silently drift again
  (verified: reverting the array branch turns the parity test red).

* fix(ingestion/routes): suppress wrong unprefixed route under class-array @RequestMapping; cover named-array + class-array parity

Addresses PR review on #2281:
- P2 class-array wrong-route: class branches now match the array form only to detect it; a method-level array route under a class-level array-form @RequestMapping is suppressed rather than emitted with a dropped prefix, so ingestion stays a strict subset of the group scan. Scalar method paths under an array class prefix are unchanged (pre-existing). Full class-array cross-product support tracked in a follow-up.
- P2 named-array coverage: added value={...}/path={...} parity cases, a consumes/produces array false-positive case, and a dedicated empty-provider-set assertion.
- P3 stale comments: updated the routeCoverage comment in java.ts and the route-parse-skip test note; narrowed the parity test drift claim.

routeCoverage stays 'partial'.

---------

Co-authored-by: henry <zhangwei2017@unipus.cn>
Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-24 07:10:37 +01:00
Gergő Magyar
698f5efc82
feat(group): resolve inline HTTP provider handlers via call-site line (#2276) (#2282)
Some checks are pending
CodeQL / Analyze (javascript-typescript) (push) Waiting to run
CodeQL / Analyze (python) (push) Waiting to run
Gitleaks / gitleaks (push) Waiting to run
Publish / Classify release event (push) Waiting to run
Publish / RC guard (marker + release-PR skip) (push) Blocked by required conditions
Publish / ci (push) Blocked by required conditions
Publish / Publish to npm (push) Blocked by required conditions
Publish / Build & Push RC Docker images (push) Blocked by required conditions
Scorecard / Scorecard analysis (push) Waiting to run
Trivy Image Scan / Trivy (gitnexus-cli) (push) Waiting to run
Trivy Image Scan / Trivy (gitnexus-web) (push) Waiting to run
* feat(group): resolve Go inline provider handlers via line containment (#2276)

Widen the Go HandleFunc + framework-route handler capture to match
func literals and emit name:null + call-site line for them, so an
inline handler resolves to its containing/closure symbol instead of
file-level. Named identifier handlers keep resolving by name.

* feat(group): resolve Laravel closure provider handlers via line containment (#2276)

Capture the Laravel route handler argument; a closure (anonymous
function or arrow fn) now emits name:null + the registration line so it
resolves to its containing symbol (service-provider boot, controller
method) by containment. Named-controller routes keep the 'route' label.
File-scope closures stay file-level (PHP closures not yet indexed).

* feat(group): wire call-site line on FastAPI provider emits (#2276)

Set line on the FastAPI @app/@router provider detections (already
name:null) so the source-scan fallback resolves the decorated handler
by line-span containment. Best-effort: FastAPI routes are graph-backed
and the function span starts at def, so this lands the single-decorator
case. Flask add_url_rule already carried line.

* feat(group): wire call-site line on Kotlin/Java Spring provider emits (#2276)

Add line to the Kotlin and Java Spring @*Mapping provider detections
for parity with the consumer emits and a future inline DSL. Inert for
current resolution: a named Spring controller method resolves by name
and never falls through to line-span containment.

* fix(review): apply autofix feedback

Pin two documented limitations with tests: a file-scope Laravel closure
and a multi-decorator FastAPI handler both degrade to file-level rather
than mis-attributing (#2276 ce-code-review autofix).

* test(group): lock named gin framework-route resolves by name not registrar (#2276)

Reviewer verified named Go handlers still resolve by name across the
widened queries; the HandleFunc path was already pinned, this adds the
framework-route (gin/echo) path with a DB + enclosing registrar whose
span covers the registration line, proving the emitted line never
diverts a named provider to its registrar via containment.

* test(group): end-to-end inline Go provider resolution against real LadybugDB (#2276)

Closes the validation gap that all prior coverage mocked CONTAINING_QUERY:
runs the real pipeline over a Go file with an inline http.HandleFunc
func-literal handler, persists into a real LadybugDB, and runs the
production HttpRouteExtractor against the real executor — proving the
emitted call-site line lands inside main()'s real 0-based span and yields
source_scan_resolved, not the file-level fallback.

* fix(test): use fs.mkdtemp to satisfy CodeQL insecure-temporary-file gate (#2276)

The new integration test created its temp base via a predictable
os.tmpdir()+name join, which CodeQL flags as js/insecure-temporary-file
(1 high). Switch to fs.mkdtemp for an atomic, randomly-named base dir.

* fix(group): anchor Go provider @handler to the trailing argument (#2276)

The widened framework-route and HandleFunc handler captures
(`[(identifier) (func_literal)] @handler`) were unanchored, so a variadic
middleware route `r.GET("/x", mw, func(){})` produced two provider
detections — one for the middleware identifier and one for the closure.
The contractId-only merge then kept the middleware detection and
mis-attributed the route to it (and the pre-existing `mw, namedHandler`
shape had the same defect), silently neutralizing the inline-handler
containment resolution from #2276.

Add a trailing tree-sitter anchor (`@handler .`) so the handler binds the
LAST argument of the call, leaving middleware args before it unconstrained.
Verified against tree-sitter-go: the multi-arg shapes now yield exactly one
detection (the real handler) while every 2-arg case is unchanged. Adds two
regression tests pinning that a middleware + inline closure resolves to its
containing function and a middleware + named handler resolves by name.

* test(group): cover FastAPI @router inline-handler containment (#2276)

The @router/APIRouter provider emit gained a call-site `line` in #2276 but
only the @app path was tested; the existing @router tests call
`extract(null, …)` so the resolver/containment path never ran for @router.
Add two tests mirroring the @app cases: a single-decorator @router handler
resolves to its function via source_scan_resolved (which fails if `line` is
dropped), and a multi-decorator one degrades to file-level.

* fix(group): treat synthetic 'route' label as anonymous in cross-trace (#2276)

After #2276 an unresolved file-scope Laravel closure emits name:null, so its
persisted symbolName falls back to 'handler' — which providerLabel already
anonymizes to '<contractId handler>'. But an unresolved named-controller
route still carries the synthetic 'route' placeholder, which the sentinel
did NOT cover, so group_trace/group_cross_impact rendered it as the literal
'route' while equivalent closures showed '<... handler>'.

'route' is only ever the synthetic Laravel placeholder (php.ts), never a
resolved handler name, so add it to the unresolved-generic sentinel set
alongside 'handler'/'fetch'. The resolved branch is untouched, so a real
symbol genuinely named 'route' still displays its name. Adds a cross-trace
test pinning the anonymized label.

* fix(group): gate Spring provider line on a present method name (#2276)

The Java/Kotlin Spring @*Mapping provider emits set `line` unconditionally
while the method name is typed string|null. The 'a named provider never
reaches containment' guarantee held only because the grammar always captures
a method name — the type did not enforce it. A (grammar-impossible) null name
would emit name:null + line and resolve by containment to the enclosing class
body instead of staying file-level.

Emit `line` only when the method name is truthy, so a nameless provider
degrades to file-level (the safe no-mis-attribution outcome). Behavior is
unchanged for every real Spring route (name is always present), but the
inertness is now enforced rather than incidental.
2026-06-23 17:51:11 +01:00
glier
d27fd11c4b
fix(lang-kotlin): support fun interface extraction via tree-sitter-kotlin re-vendor (#2271)
* fix(lang-kotlin): support `fun interface` extraction via tree-sitter-kotlin re-vendor

Vendored tree-sitter-kotlin@0.3.8 (fwcd) parsed `fun interface Foo` as an
ERROR node and dropped the declaration plus its abstract method, so functional
(SAM) interfaces were never extracted. The fix landed upstream in
fwcd/tree-sitter-kotlin#169 (closes #87), merged to main 2025-04-25, but is not
in any npm release (latest tag 0.3.8; main is the unreleased 0.4.0).

Re-vendor the grammar from the unreleased fwcd main commit c8ac3d26:
- refresh src/{parser.c,scanner.c,node-types.json,tree_sitter/*.h} and
  bindings/node/index.js; bump the vendor version 0.3.8 -> 0.4.0; record the
  pinned SHA + rationale in _vendoredBy and the vendor README.
- switch the prebuild workflow's kotlin registry kind 'npm' -> 'vendored' (the
  fix is unreleased on npm, so prebuilds must build from the vendored C source,
  like swift/dart/proto).
- add a hold to .github/vendored-grammars.json so the weekly auto-update
  monitor does not strict-inequality-revert the pin to the broken npm 0.3.8
  (isNewer compares 0.3.8 != 0.4.0).
- add 3 regression tests + a fixture asserting fun interfaces extract as
  Interface nodes with their abstract methods, and that plain-interface
  heritage still resolves.

Existing KOTLIN_QUERIES need no change: the new grammar models `fun interface`
as a class_declaration with an "interface" keyword child (plus an extra "fun"
modifier child), which the existing interface rule already matches. Full Kotlin
suite green against the new grammar (300 unit/cfg/resolver + 233 integration).

NOTE: prebuilds/ are intentionally not in this commit. The version bump
auto-triggers .github/workflows/build-tree-sitter-prebuilds.yml, which
regenerates all 6 platform binaries from the vendored source in a separate PR.
Until that lands, CI loads the committed 0.3.8 prebuild, so the new kotlin
tests are red and the grammar change is inert at runtime. Merge the prebuild PR
first or together.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(ci): count kotlin's vendored hold as a 0.25-readiness blocker

The kotlin `hold` added in the previous commit makes the tree-sitter
upgrade-readiness report count it as a blocker — the report treats every
held vendored grammar as frozen below a runtime upgrade (same as the
intentionally-pinned tree-sitter-cpp and the ABI-held tree-sitter-c),
"in-range ABI or not". So the report's blocker count goes 2 -> 3.

Update the hardcoded count in
test_issue_update_summary_regex_matches_current_report (and the
_render_report docstring) accordingly — exactly as that test instructs:
"if a grammar is added/removed or a pin/hold changes, update the expected
counts". kotlin's ABI (14) is in range; the hold is what flags it, with the
reason recorded in .github/vendored-grammars.json.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(ci): refresh kotlin baselines for the grammar bump

Two committed baselines pinned the pre-bump kotlin state and broke when the
grammar was re-vendored (0.3.8 -> 0.4.0):

- cli-commands.test.ts pinned the vendored kotlin package version at 0.3.8 ->
  update to 0.4.0.
- bench/scope-capture/baselines.json: the new kotlin-fun-interface fixture joins
  the lang-resolution/kotlin-* corpus AND the new grammar parses `fun interface`
  as a class_declaration (not an ERROR node), so the capture fingerprint drifts.
  Rebaselined to the NEW grammar's fingerprint (verified by building the vendored
  parser.c against tree-sitter@0.21.1 and running measure.mjs --check); scaling
  ~0.83 (linear).

Like the fun-interface integration tests, the scope-capture --check passes only
once the regenerated prebuilds land; until then CI loads the committed 0.3.8
binary, so it stays red.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* ci(prebuilds): rebuild + commit grammar prebuilds into the PR on vendored-source change

build-tree-sitter-prebuilds.yml previously rebuilt a grammar's native prebuilds
only when its package.json VERSION bumped, and delivered them via a separate bot
PR. Now any change to the vendored grammar source re-cuts the prebuilds and they
ride into the same PR.

- Trigger on any build-affecting change under gitnexus/vendor/tree-sitter-*/**
  (parser.c, grammar.js, binding.gyp, scanner, bindings), not just version bumps.
  The prebuilds/ subtree is negated in the paths filter AND excluded from the
  guard's source diff, so the bot's own prebuild commit can never retrigger the
  workflow (no build -> commit -> build loop).
- The guard builds a grammar when its recorded version changed OR its vendored
  source changed vs the PR base.
- Same-repo PRs get the rebuilt prebuilds committed straight onto their own head
  branch (included in the SAME PR) via a non-force push that only adds a commit
  on top of head. Manual dispatch still opens a fresh chore/ PR; fork PRs stay
  artifacts-only (a bot cannot push into a fork branch).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* ci(prebuilds): deliver rebuilt prebuilds to fork PRs via a trusted workflow_run stage

A fork PR's producer run has a read-only token and no secrets, so it can build and
validate the prebuilds but can't commit them. Add the safe two-stage handoff that
mirrors the pr-autofix producer/publish split.

- build-tree-sitter-prebuilds.yml (untrusted producer): on a fork PR, upload a
  pr-meta artifact (schema, pr_number, head_sha, head_ref, head_repo, base_repo)
  alongside the prebuild artifacts. Values flow through env + jq, never
  interpolated into a shell.
- commit-fork-prebuilds.yml (trusted, workflow_run): downloads ONLY the artifacts
  (never executes fork code — it checks out the pinned HEAD SHA solely to add
  files), allowlist-validates every metadata field, cross-checks identity against
  the workflow_run authority (head_sha / head_repo / pr_number, via
  commits/{sha}/pulls for forks), then pushes the prebuilds onto the fork head
  branch with --force-with-lease + http.extraheader auth. No PAT: this works when
  the contributor left "Allow edits by maintainers" on; on push failure it posts a
  sticky comment telling them to enable it or commit the downloaded artifacts.

zizmor: allowlist commit-fork-prebuilds.yml's workflow_run dangerous-trigger with
the documented mitigation, matching the existing ci-report / pr-autofix entries.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore(vendor): rebuild tree-sitter-kotlin prebuilds for the re-vendored fun-interface grammar

The fun-interface re-vendor changed vendor/tree-sitter-kotlin source but left main's
old (0.3.8) prebuilds in place, so all 6 platform binaries were stale relative to the
new parser. Replace them with the freshly cross-built + ABI-validated binaries from
build-tree-sitter-prebuilds run 28010841458 — each .node was require()-loaded and
parsed a snippet on its target platform-arch before upload.

This is the manual equivalent of the commit-fork-prebuilds.yml delivery, which can't
run for this fork PR until it lands on main.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(lang-kotlin): read extension-function receiverType from the re-vendored grammar's `receiver` field

The fun-interface re-vendor changed the kotlin AST: an extension function's
receiver is now a `receiver_type` exposed via a named `receiver` field, where the
old grammar emitted a bare user_type before the name. extractReceiverType only
matched the old shape, so receiverType came back null
(method-extraction.test.ts > Kotlin MethodExtractor > extracts receiverType).
Prefer the `receiver` field (unwrapping it), and keep the old child-scan — now
also recognizing `receiver_type` — as a fallback.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-23 10:01:28 +01:00
Gergő Magyar
1a03c8527a
feat(group): cross-repo call trace using PDG (#2269)
* refactor(group): extract shared resolveBridgeNeighbors from cross-impact

Lift the uid-filtered consumer<->provider ContractLink join (direction +
queryBridge + row normalization + confidence sort) out of runGroupImpact's
inline Phase-2 block into an exported resolveBridgeNeighbors helper. Behavior
is unchanged for impact; the helper becomes the single shared bridge join so
the upcoming cross-repo trace path never forks its own copy of the neighbor
Cypher. Empty uid sets short-circuit without a DB round-trip.

Adds direct coverage (real bridge via writeBridge/openBridgeDbReadOnly) for
both directions plus the empty-set and unknown-uid edges.

* feat(group): cross-repo trace stitching (groupTrace + runGroupTrace)

Add GroupService.groupTrace and the pure runGroupTrace engine that stitches
per-repo CALLS/HAS_METHOD trace segments across one ContractLink boundary in
the group bridge:

  from --(local trace)--> consumer --(ContractLink)--> provider --(local trace)--> to

- Resolves from/to across all members (symbol node id == bridge symbolUid);
  same-repo endpoints delegate to a single local trace with no crossing.
- Single boundary crossing (MAX_SUPPORTED_CROSS_DEPTH); deeper crossDepth is
  clamped with a note, mirroring cross-impact.
- Discriminated GroupTraceResult union (ok|not_found|ambiguous|error) with
  per-hop repo tags, a typed crossings[] entry, and centralized degraded-state
  note constants (TRACE_NOTES). No .
- Trace-specific pair query (keeps BOTH crossing endpoints) lives in this
  module; the uid-filtered neighbor join (resolveBridgeNeighbors) is reused
  where it fits. ensureBridgeReady exported for reuse.
- New GroupToolPort methods (trace/resolveSymbol/pdgFlows) are optional so
  existing port mocks keep type-checking; runGroupTrace guards on presence.

PDG enrichment is wired as an opt-in hook (enrichSegment) — the port method is
stubbed until U4. Covered by unit tests over a real bridge + mocked port.

* feat(group): route trace tool to groupTrace on @group syntax

Wire the cross-repo trace through the existing @group dispatch:
- callTool routes trace with an @-prefixed repo to callToolAtGroupRepo, which
  forwards from/to/uid/file/maxDepth/includeTests plus the experimental
  pdg/crossDepth flags to GroupService.groupTrace. Member path in @group/path
  is advisory for trace (resolution is whole-group).
- Port gains trace/resolveSymbol/pdgFlows adapters. resolveSymbolForGroup wraps
  the shared resolveSymbolCandidates so groupTrace can locate the member repo
  and recover each endpoint node id (== bridge symbolUid). pdgFlowsForGroup is
  a degraded stub here (call-level only); U4 implements the REACHING_DEF walk.
- trace tool schema documents the @group entry point, pdg, and crossDepth.

Single-repo trace is untouched. Covered by dispatch-routing tests (@group ->
groupTrace, non-group stays local) and tool-schema assertions.

* feat(group): opt-in PDG data-flow enrichment for cross-repo trace

Implement _pdgFlowsForGroupImpl: the real REACHING_DEF anchor walk that backs
the port pdgFlows adapter (replacing the U3 call-level stub). When pdg:true and
the segment repo has a flows PDG layer, the boundary-adjacent segments carry
their intra-procedural def->use hops:

- Anchors by the boundary symbol UID (precise; avoids the by-name ambiguity the
  resolveBlockAnchor path can hit), then reuses the same span-anchored,
  bind-param-only flows query as pdg_query (BasicBlock id-prefix + [start+1,
  end+1] line window; no rel-property index, so the anchor IS the bound).
- Stays intra-procedural: data flow never crosses the repo boundary.
- pdgStampForMode probe: false -> available:false (degrade with note); the
  trace stays ok. Any query failure is swallowed (enrichment is auxiliary).

Covered by runGroupTrace enrichment tests: dataFlow attached on opt-in,
degraded note when no layer, and no pdgFlows call when pdg is omitted.

* test(group): evaluation-first cross-repo trace e2e (two real indexes)

End-to-end gate for the cross-repo trace: stands up two real LadybugDB indexes
(consumer 'frontend' + provider 'backend'), a real ContractLink bridge, and a
real LocalBackend with both repos registered, then drives the public
callTool('trace', { repo: '@grp', pdg: true }) and asserts:
  - the stitched checkout -> callUsers -(CONTRACT_LINK)-> handleUsers -> getUsers
    path, each hop tagged with its member repo
  - real REACHING_DEF data-flow enrichment of the consumer segment (userId)
  - a degraded 'No PDG layer in app/backend' note (provider has no PDG layer)
  - single-repo trace against one member is unchanged (no crossings)

Hand-persists the minimal real graph (deterministic; a full two-repo analyze is
heavier than this gate needs) and exercises real Cypher across
resolveSymbolCandidates, _traceImpl, the bridge pair query, and
_pdgFlowsForGroupImpl. Windows-skipped (describeReopen) and registered in the
cross-platform native-lbug set.

Scoped to a single @group call: opening bridge.lbug read-only a SECOND time in
one process currently fails (shared bridge open/close lifecycle, also affects
impact @group) — the pdg-omitted/clamp variants are unit-covered.

* docs(group): document cross-repo trace + PDG enrichment

ARCHITECTURE.md: trace is now group-aware; describe the @group cross-repo
stitch over a single ContractLink boundary (CONTRACT_LINK hop, crossings[],
crossDepth clamp), the opt-in experimental PDG REACHING_DEF enrichment of
boundary-adjacent segments, the symbolUid-grain join between the two stores,
and the deferred full cross-program (SDG-like) data flow. PIPELINE.md: add the
cross-trace consumer of the bridge with its pair-query rationale.

Does not touch gitnexus/CHANGELOG.md (release-owned).

* fix(review): apply autofix feedback

Apply safe_auto findings from ce-code-review (run 20260622-094243):
- local-backend.ts: drop (r: any) in _pdgFlowsForGroupImpl row map; coerce
  hop line via Number() so a nullish LadybugDB cell can't surface NaN.
- tools.ts: advertise the forwarded  param in the trace schema and add
  crossDepth maximum:10 (schema now matches what groupTrace reads).
- cross-trace.ts: parallelize per-member resolveSymbol/resolveRepo with
  order-preserving Promise.all (matches groupContext/groupQuery); add a note
  when pdg:true is passed to a same-repo trace (PDG only enriches at a
  cross-repo boundary).
- tests: remove  / tighten  (no-any rule).

Residual gated_auto/manual findings (unbounded crossing query + loop,
whole-file PDG widening on absent span, error-vs-no_path masking, top-level
try/catch parity, helper dedupe, branch-coverage gaps) are recorded in the run
artifact for the PR body.

* fix(group): skip CHECKPOINT on read-only bridge close so it can reopen

Root cause of the in-process bridge.lbug reopen failure (which broke repeated
@group impact/trace calls in a long-lived MCP server): closeBridgeDb issued
CHECKPOINT on EVERY handle, including read-only ones. A CHECKPOINT on a
read-only connection has nothing to flush but leaves a WAL/shadow lock artifact
that makes the next read-only open of the same path fail (openBridgeDbReadOnly
returns null -> 'Could not open bridge.lbug read-only'). Reproduced: open ->
query -> closeBridgeDb -> open again returned null only when the close ran
CHECKPOINT; a non-checkpoint close reopened fine, and the raw native
open/close cycle was never the problem.

Fix: tag read-only handles (BridgeHandle._readOnly, set by openBridgeDbReadOnly)
and skip CHECKPOINT for them in closeBridgeDb. Writable handles are unchanged
(they still flush before close). This is the shared bridge-db close path, so
impact @group benefits identically.

- Regression test in bridge-db.test.ts: open/query/close/open/query/open in one
  process now succeeds.
- Re-enabled the second @group call in cross-trace-e2e.test.ts (was scoped to a
  single call for this very limitation).

* fix(group): bring bridge-db close to parity with the core adapter safeClose

The bridge open/close cycle was less robust than the main graph DB's: closeBridgeDb
closed the connection/database but skipped the post-close steps the core adapter's
safeClose performs, so a rapid in-process reopen could race the OS handle release
(Windows) or an orphaned WAL sidecar. That gap is why the close-then-reopen tests
had to skip Windows.

closeBridgeDb now mirrors safeClose after closing the handle:
- waitForWindowsHandleRelease(dbPath): probe the file (+ .wal) until the residual
  Windows lock clears, so the next open does not race (warns if the budget is
  exhausted, matching the core adapter).
- finalizeLbugSidecarsAfterClose(dbPath): quarantine an orphaned WAL (shadow
  missing) so the next open replays a consistent file.

Both helpers are the same ones safeClose uses (Windows-proven via the core adapter
CI), and the bridge read open already retries transient locks. Combined with the
read-only CHECKPOINT skip, the bridge reopen is now robust on every platform, so
the close-then-reopen tests run on all platforms (Windows CI exercises them via the
cross-platform subset). No write-path behavior change; Linux/macOS unaffected.

* fix(group): bound cross-repo crossing fan-out (LIMIT + segment memoization)

Address the top review residual: the bridge crossing query was unbounded and the
crossing-selection loop could run an O(2*N) sequential trace-BFS over every
ContractLink between a repo pair.

- CY_CROSSINGS_BETWEEN now ORDERs BY confidence DESC and LIMITs to
  MAX_CROSSINGS_TO_TRY + 1; listCrossingsBetween slices to the cap and reports
  truncation. Exceeding the cap surfaces a note (no silent truncation), keeping
  the highest-confidence crossings. Aligns with the repo's anchored+LIMIT-bounded
  query discipline (LadybugDB has no rel-property index).
- The home-repo segment (from -> consumer) depends only on the consumer uid and
  the target-repo segment (provider -> to) only on the provider uid, so each is
  memoized by that uid. Many crossings sharing a consumer/provider (one client
  call linked to several providers) now cost one trace per distinct endpoint
  instead of one per crossing. A consumer whose segment already failed is skipped
  for every later crossing that shares it.

Test: two links sharing a consumer (first provider unreachable, second reachable)
assert the from->consumer segment is traced exactly once and the second crossing
wins.

* fix(group): restore Windows skip for bridge reopen tests; drop ineffective close-side probe

The previous commit flipped the bridge close-then-reopen tests to run on Windows,
betting that a close-side waitForWindowsHandleRelease + finalizeLbugSidecarsAfterClose
probe (mirroring the core adapter safeClose) would make the in-process reopen work
there. Windows CI proved otherwise: 4 writeBridge->openBridgeDbReadOnly tests fail
('expected null not to be null' — the read open returns null). The writable-close ->
read-open handoff plus writeBridge's atomic sidecar rename does not release the OS
file handle before the read open races, and the existing open-side LBUG_OPEN_RETRY
only retries lock-pattern errors, not the post-rename sidecar database-id mismatch.
macOS passes; the core adapter's own reopen also passes — this is bridge+Windows
specific.

- Revert itLbugReopen to the Windows skip (the pre-existing, correct state).
- Remove the close-side probe + finalize from closeBridgeDb: it did NOT close the
  Windows gap, and reviewers flagged it for hot-path latency (finalize ran on every
  close, all platforms) and safeClose duplication.
- KEEP the load-bearing fix — skipping CHECKPOINT on read-only handles — which fixed
  the reproduced Linux/macOS in-process reopen artifact (the real bug).

Net: Linux/macOS repeated @group impact/trace works in-process; Windows in-process
bridge reopen remains a documented limitation (unchanged from before this PR).

* fix(group): surface degraded members + cap truncation; honest crossDepth schema

Address the cross-engine-corroborated tri-review findings (Codex + Claude):
- resolveAcrossMembers / runGroupTrace now track member repos that could NOT be
  queried (resolveRepo or resolveSymbol threw) and, when the result is not_found,
  attach a degraded-member note. A transient/corrupt member DB is no longer
  silently reported as a clean 'symbol absent' not_found. (Codex B1+B3 + ce-reliability.)
- The cross-repo not_found now carries a programmatic truncated:true flag (and a
  clearer suggestion) when the MAX_CROSSINGS_TO_TRY cap was hit, so a consumer can
  distinguish 'no path' from 'cap may have hidden a connecting ContractLink'.
  (Codex B3 + ce-adversarial + ce-api-contract.)
- trace tool schema: crossDepth maximum 10 -> 1 to match the implementation's
  single-hop clamp (the schema previously advertised an unsupported 2-10 range).
  (ce-api-contract, conf 100.)

Test: a member whose resolveSymbol throws yields not_found WITH a degraded note
naming the unreachable repo (if-free responder map).

* docs(group): clarify trace @group/memberPath is advisory (resolves all members)

Tri-review (Codex ce, conf 100) caught a doc/impl inconsistency: ARCHITECTURE.md
lumped trace with query/context/impact as honoring @group/memberPath member
scoping, but cross-repo trace resolves from/to across ALL members (the member
path is advisory). Clarify the behavior and point to from_uid/to_uid for
disambiguating same-named symbols across members.

* feat(group): file-level boundary fallback so cross-repo trace works on HTTP contracts

Benchmark (bench/cross-repo-trace/) running the REAL pipeline (runFullAnalysis
--pdg -> real syncGroup -> trace @group) found that cross-repo trace returned
not_found for real HTTP links even though sync built the correct ContractLinks:
HTTP (and other source-scan) contracts hardcode symbolUid:'' (http-route-extractor),
and both cross-trace AND cross-impact join crossings by Contract.symbolUid, which
never matches an empty uid. (Pre-existing — impact @group has the same gap.)

Fix: when a crossing's symbolUid is empty, fall back to the contract's FILE — if
the user's from/to resolves into the contract file, that endpoint anchors the
boundary. CY_CROSSINGS_BETWEEN now returns consumer/provider filePath; a crossing
is kept if it can be anchored by uid OR file on each side; a fileBoundaryFallback
note flags that the boundary is file-level, not symbol-precise. This makes the
common 'trace from=<calling fn> to=<handler fn>' case work end-to-end (verified:
fetchUsers -> listUsers stitches with a CONTRACT_LINK hop + PDG enrichment, 2/2).

Limits (documented in the bench README + the note): anonymous handlers have no
named target; when several contracts share files the file fallback may attach the
wrong contractId to a correct path. The proper upstream fix is to populate
symbolUid in the HTTP extraction (benefits impact too) — the bench is its gate.

Adds a unit test pinning the empty-symbolUid file-fallback stitch.

* fix(group): resolve HTTP contract symbolUid by containment (fixes cross-repo trace + impact)

Addresses the root cause behind the cross-repo trace file-fallback: HTTP
contracts hardcoded symbolUid:'' (http-route-extractor), so both cross-trace and
cross-impact — which join crossings on Contract.symbolUid — could not traverse
HTTP links. (Also found: the pre-existing graph-assisted resolution queried the
wrong edge, CONTAINS instead of DEFINES, so it never resolved a uid either.)

Now the extractor resolves each detection to a real symbol:
- HttpDetection carries the call-site line (node.ts sets it on every express/
  fetch/axios/jquery/nest detection; express also captures the handler arg).
- resolveDetectionSymbol resolves the named handler first, else the innermost
  Function/Method whose line span encloses the call (consumer = the function
  containing the fetch; provider = the named/inline handler), over the correct
  File-[DEFINES]->symbol edge. Base-tolerant (0- vs 1-based startLine).
- Wired into both source-scan and graph-assisted provider/consumer paths.

Verified end-to-end (bench/cross-repo-trace): all 4 contracts now carry real
uids, trace is symbol-precise (GET pair -> http::GET, POST -> http::POST, no
file-fallback note), and impact @group fans out (cross_repo_hits 0 -> 1). The
cross-trace file-level fallback remains as the secondary path for truly
anonymous handlers. Adds 2 containment unit tests; 738 group/integration pass.

Languages other than JS/TS still resolve providers by handler name; their
consumers fall through to the file fallback until their plugins set the line.

* fix(group): extend HTTP symbolUid containment to all languages + nested methods

Completes the symbolUid resolution across every bundled HTTP plugin: Python, Go,
PHP, Kotlin and Java now set the call-site line on their consumer (and Feign/
named) detections, so their HTTP contracts resolve to the containing function
the same way Node/TS already did.

Also generalizes the containment query: it now matches Function/Method/CodeElement
by filePath (UNION ALL) instead of File-[DEFINES]->symbol. The DEFINES edge only
reaches a file's TOP-LEVEL symbols, so methods nested in classes (Java/Kotlin —
File defines the class, the class defines the method) were invisible; matching by
filePath reaches them. Verified against a real index (LadybugDB supports the
UNION); JS/TS still fully symbol-precise (bench 2/2), 709 group tests pass.

Residual is now only the inherent case — a fully anonymous handler with no named
callee — which keeps the cross-trace file-level fallback.

* feat(group): destination trace — follow a consumer to an anonymous handler

Handles the one inherent residual: an anonymous route handler
(`router.get('/x', (req,res) => …)`) has no symbol node at all (the file holds
only a Const + PDG BasicBlocks), so it can never be named as a trace `to`.

Adds a DESTINATION TRACE: omit to/to_uid/to_file on an @group trace and
`trace from=<consumer>` follows the consumer's outgoing HTTP call across the
bridge and reports where it lands — by route + file:line, with a notes[] entry
flagging the handler as anonymous. Implemented as a new branch in runGroupTrace
(p.destination) backed by CY_CROSSINGS_FROM (all ContractLinks leaving the
consumer repo) + stitchToDestination; the provider endpoint is labelled
'<METHOD /path handler>' when its symbolName is a generic token/file basename.

The MCP routing already omitted an absent `to`, so only the schema docs changed.
parseTraceParams now treats a missing `to` as a destination trace instead of an
error. Verified end-to-end: anonymous fixture reports
'app/frontend:fetchUsers -> app/backend:<http::GET::/api/users handler>'; named
fixture lands at the real function. Adds 2 unit tests; 915 group tests pass.

* fix(group): tri-review fixes for cross-repo trace + symbolUid resolution

Two-engine tri-review (Claude swarm+ce + Codex GPT-5.5 swarm+ce+adversarial)
surfaced these; cross-engine-corroborated unless noted.

Correctness (P1, all four lanes): destination trace reported the WRONG endpoint
— an empty-uid consumer made trace(from->from) trivially succeed, so the highest-
confidence same-file crossing won regardless of which call `from` makes.
stitchToDestination now collects ALL connecting crossings, prefers symbol-precise
hits, and returns `ambiguous` (with candidates) when it cannot disambiguate.

Correctness (P1, Codex): resolveDetectionSymbol early-returned null when
d.line==null, blocking NAME resolution for named providers that set no line
(Spring/Go/etc.). Name resolution now runs first; only containment needs a line.

Correctness (P2): resolveContainingSymbol OR-ed `line` and `line-1`, which could
mis-pick a one-line sibling. It now probes the base-correct `line-1` first and
falls back to `line` only if nothing matches.

Correctness (Codex): anonymous Express handlers emitted name:'handler' and could
attach to an unrelated fn literally named `handler`. node.ts now emits name:null
for non-identifier handlers (containment-only).

Robustness: drop the first-symbol-in-file pickSymbolUid guess from the graph
consumer/provider paths (a wrong uid would win the contractId merge); remove the
dead CONTAINS_QUERY fallback (CONTAINS is File->Folder, never a symbol) + the now
-unused pickSymbolUid/handlerName; seed destination notes with degraded-member
notes so a successful trace still surfaces them; providerLabel takes providerUid
so a resolved fn named `handler` is not mislabeled anonymous, and only true file
basenames (known extensions) — not any dotted name — count as anonymous.

API contract: a single-repo trace with no `to` now returns an actionable error
(destination trace is @group-only) instead of "symbol 'undefined' not found".

Maintainability/tests: narrow asLocalTrace per-field (drop as-unknown-as); fix the
PR's lone as-any (vi.mocked); if-free e2e teardown; qualify the bench README.

Adds ambiguous-destination, anonymous-handler-no-false-name, and single-repo-no-to
tests; redirects graph mocks CONTAINS->UNION ALL. 918 group/integration pass.

* fix(group): carry degraded-member notes through SUCCESSFUL group traces

A reviewer (koriyoshi2041, PR #2269) correctly flagged that degraded-member
resolution was surfaced only on not_found, not on a successful ok result. Group
trace resolves names across ALL members, so an ok is 'unique among the members
we could query' — if a member that threw during resolveSymbol also holds from/to,
the real answer could be ambiguous. The destination path already seeded the note
(prior commit); this extends it to the same-repo and cross-repo success paths by
seeding the dispatch notes with degradedNotes([...fromRes.degraded, ...toRes.degraded]).

Adds a regression test: reg-be throws while a same-repo trace succeeds in reg-fe;
the ok result now carries the 'could not be queried' degraded note (app/backend).

* test(bench): cover all implemented cross-repo trace cases in one runner

Replace the single named-handler script with a self-contained verify.mjs that
generates each fixture inline and exercises every implemented end-to-end case
against the real analyze -> sync -> trace/impact pipeline, asserting PASS/FAIL
(exit non-zero on failure). 10 checks across 4 scenarios:
- named handlers: 4/4 symbolUid resolved; symbol-precise GET vs POST crossing
  selection; destination trace lands at the named handler.
- anonymous handler: empty symbolUid; destination trace reports it by route with
  the anonymous note.
- impact @group fan-out (cross_repo_hits >= 1).
- multi-language (Python Flask + requests): link built, cross-repo trace stitches,
  and the file-level boundary fallback is exercised when the provider has no uid.

Ambiguous-destination and degraded-member paths need synthetic inputs the real
analyzer cannot produce, so they stay in the unit suite (documented in the README
+ script header). Removes verify-named.mjs + fixtures-named/ (folded inline).

* test(group): pin destination degraded-success + precise-tier ambiguity

Adds the two regression guards koriyoshi2041 requested on PR #2269 after the
degraded-on-success fix:
- destination trace success with a degraded member: reg-fe resolves from and
  follows the link to an anonymous handler while reg-be throws; the ok result
  carries the anonymous endpoint AND the 'could not be queried' degraded note, so
  the no-to path stays aligned with explicit to traces.
- multiple PRECISE destination hits: one from reaches two consumers with resolved
  uids linked to different routes; the result is ambiguous (role: to) with both
  route candidates. Distinct from the existing file-level ambiguous test, this
  pins the stronger precise tier against a future change silently picking the
  highest-confidence destination.

Both already pass against current behavior; 716 group tests pass.
2026-06-23 07:54:13 +01:00
henry201605
b16ec344f7
perf(group/http): skip source parse for graph-covered route files (#2138 Part 2) (#2265)
* feat(routes): resolve + persist handler symbol on Route nodes (#2138 part 2, WIP)

Part 2 groundwork for #2138: give the graph-assisted HTTP provider path the
handler symbol directly, so it no longer re-parses source to recover the
handler name. (The remaining parse-skip in extract() + a call-count benchmark
land in a follow-up commit.)

- ExtractedDecoratorRoute gains `handlerName`; the Spring extractor captures
  the decorated method's name (the method_declaration node is in hand).
- New `resolveRouteHandlerSymbols` (call-processor) resolves each route's
  handler to a real symbol UID, keyed by normalized route URL — Laravel
  framework routes (controller + method) and decorator routes (Spring/FastAPI)
  both reduce to `(filePath, name) -> nodeId`. Threaded through the parse phase
  onto `ParseOutput.routeHandlerSymbols`.
- routes phase stamps `Route.handlerSymbolId`; persisted end-to-end (schema +
  Route CSV row + getCopyQuery COPY columns), mirroring Part 1's `method`.
- HttpRouteExtractor: `HANDLES_ROUTE_QUERY` returns `handlerSymbolId`;
  `extractProvidersGraph` uses it as the authoritative symbol and SKIPS
  `getDetections()` for resolved rows (CONTAINS is a cheap graph lookup for the
  display name only — no tree-sitter parse). Fully backward compatible: an
  unresolved/old-index route with no `handlerSymbolId` keeps the source-scan
  fallback.
- Extracted `normalizeExtractedRoutePath` to `route-extractors/route-path.ts`
  (shared by routes phase + resolver without an import cycle).
- SCHEMA_BUMP 6->7 (ParseWorkerResult gained `handlerName`); regenerated the
  emit-persistence byte-identity baseline (route.csv header gained two columns).
- Tests: Spring pipeline asserts the Route node carries a handlerSymbolId
  resolving to the handler method; extractor fast-path test proves the handler
  resolves with zero source detections.

Refs #2138

* perf(group/http): skip source parse for graph-covered route files (#2138 Part 2)

Builds on the persisted Route.handlerSymbolId (U0–U3a). When a file's
HANDLES_ROUTE rows all resolve a handler symbol AND its language plugin
declares routeCoverage: 'complete' (Java/Python/PHP), the graph is
authoritative for that file's providers, so the source scan + tree-sitter
parse can be skipped — the scan would only re-discover routes the graph
already has. This is the measurable parse reduction #2167 could not show.

Consumer safety: routeCoverage: 'complete' asserts *provider* Route-node
completeness only. The scan() of those same languages also emits consumer
detections (RestTemplate/WebClient/OkHttp/Feign, Guzzle/Http::,
requests/httpx), and ingestion's FETCHES edges are JS/TS-only — so the
graph cannot back up server-side consumers. A provider-covered controller
that also calls out would otherwise lose its consumer contract. Guarded by
a cheap, parse-free text gate.

- types: HttpLanguagePlugin gains
    - routeCoverage?: 'complete' | 'partial' (default 'partial')
    - hasConsumerSignals?(content): false only when the raw source provably
      has no outbound-HTTP call this plugin detects (conservative).
- java/python/php: mark routeCoverage 'complete' + implement
  hasConsumerSignals with a token regex over their consumer idioms.
- http-route-extractor: run the graph provider pass first to build a
  coveredFiles set; then keep a file covered only when
  hasConsumerSignals(content) === false (read via readSafe, no parse).
  scanFiles = files not covered → drives collectProjectDetections + both
  source scans. Fail-open per file: any unresolved row, a 'partial'
  language, a positive consumer signal, a missing hook, or an unreadable
  file leaves the file in the scan set. The orchestrator names no
  languages — token knowledge stays in the plugins.

Net: pure-provider controllers skip the parse (the win); controllers that
also call out are still parsed (no consumer loss); partial-coverage
languages and graph-less runs are unchanged.

- test: route-parse-skip integration test spies the real parseSourceSafe to
  COUNT parses over a temp repo of Spring controllers with a mock DB —
  baseline (every file parsed), fully-covered (0 parses), mixed (unresolved
  file falls back, resolved stays skipped), and provider+consumer (a covered
  controller that also calls restTemplate is parsed; its consumer contract
  survives).

* fix(group/http): cover Spring HTTP Interface @*Exchange in Java consumer-signal gate

#2254 (merged) added Spring 6 HTTP Interface `@(Get|...)Exchange` /
`@HttpExchange` as a new Java *consumer* idiom. The #2138 parse-skip
consumer-safety gate must recognize it, or a provider-covered file carrying
an `@GetExchange` could be parse-skipped and lose that consumer contract.
Add `Exchange` to JAVA_HTTP_PLUGIN.hasConsumerSignals (conservative; also
matches `restTemplate.exchange(`).

* style(group/http): prettier formatting for #2138 Part 2 files

* style(ingestion): prettier formatting for call-processor.ts (#2138 Part 2)

* fix(group/http): P1 (Java over-claim) + P2 (handler mis-attribution) on top of #2268 (#2138 Part 2)

Re-applied on the maintainer's #2268 (expanded Java/Kotlin consumer
extraction) base.

P1 — `routeCoverage: 'complete'` over-claimed for Java: the graph provider
set is a strict subset of the group scan (array-form `@GetMapping({...})`,
interface-inherited routes, same-URL multi-verb have no graph Route node),
so parse-skip could drop those group-only providers.
- java/python → default 'partial' (always source-scanned). Java flips to
  'complete' only once ingestion provider extraction matches the group scan
  (a separate follow-up). Python was a no-op anyway (no handlerName resolved);
  'complete' was a latent trap. PHP stays 'complete' (Laravel ingestion ⊇ the
  group scan, the one language the skip engages for).
- python hasConsumerSignals widened to a true superset of scan() (uri=/url=
  wrapper, aiohttp, urllib). Java's gate already covers #2268's consumer set
  (same receivers; the @*Exchange token is present).

P2 — resolveRouteHandlerSymbols: reserve the URL slot on first encounter even
when unresolved (mirrors addRoute first-writer-wins, so a later same-URL route
can't stamp the node-winner's slot); refuse to guess on an ambiguous same-name
lookup (exactly one match → use it; zero/many → fail-open, never a wrong
handler). The cross-source case (filesystem route winning a URL a framework
route also normalizes to) is unchanged — the resolver never receives
filesystem routes — and stays fail-open.

Tests:
- route-parse-skip rewritten: the parse-skip win is proven on PHP (fully
  covered → 0 parses; mixed fallback; consumer-covered file still parsed), plus
  three Java P1 regression guards (array-form / interface-inherited / multi-verb)
  asserting the group-only routes survive — verified they go red if Java is
  flipped back to 'complete'.
- resolve-route-handler-symbols: direct unit tests (the fn had none) — unique
  resolve, ambiguous/unknown fail-open, same-URL reservation, first-writer-wins.
- http-consumer-signals: each plugin's hasConsumerSignals is a superset of its
  scan() consumer idioms; pure providers return false.
- route-handler-symbol-roundtrip: real-LadybugDB CSV→COPY→query for
  Route.handlerSymbolId.

---------

Co-authored-by: henry <zhangwei2017@unipus.cn>
Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-23 07:22:43 +01:00
Dinh Huy
dbd4e1c9fb
feat(group): Support Django route extraction for multi-repo (#1836)
* [+] Add django route discovery to create cross-link for multi-repo

* [+] Update ingestion

* [~] Fix bugs and abstraction violation

* feat(python-http): add keyword url= and variable propagation for consumer detection

- Add REQUESTS_KEYWORD_URL_PATTERNS for requests.get(url='...') keyword args
- Add WRAPPER_URI_PATTERNS for generic wrapper.fetch(uri='...') calls
- Add WRAPPER_URI_VAR_PATTERNS + buildLocalStringMap for uri=variable propagation
- Add LOCAL_STRING_ASSIGNMENTS to track uri='...' assignments
- Wire both direct-string and variable-propagation loops in scan()
- Add normalizeConsumerPath() helper

Note: Automatic cross-link detection remains limited for runtime-computed URLs
(URLs built via .format(), string concat, or module constants). Manual
manifest links needed for known cross-repo contracts.

* [+] add extract uri and url keywork pattern for request http

* feat(python-http): add variable propagation for uri=/url= consumer patterns

Re-add LOCAL_STRING_ASSIGNMENTS, WRAPPER_URI_VAR_PATTERNS,
buildLocalStringMap(), and normalizeConsumerPath() lost during
cherry-pick merge of upstream keyword-URL commit.

Together with the upstream WRAPPER_URI_PATTERNS and
REQUESTS_KEYWORD_URL_PATTERNS, we now detect:
- requests.get(url='literal') keyword args
- wrapper.fetch(uri='literal') keyword args
- wrapper.fetch(uri=variable) where variable was assigned a string literal

* fix(group): discover Django roots relative to manage.py dir + multi-project (#1836 R1)

A Django project not at the repo root (e.g. backend/manage.py) discovered
zero routes: the settings module path was resolved repo-root-relative only,
so backend/myproj/settings.py was never found and discovery returned null.

Resolve settings, star-imported base settings, ROOT_URLCONF, and the root
urls.py against the manage.py's own directory first, then the repo root
(resolvedSettingsPath is now project-dir-aware so relative imports anchor
correctly). Iterate every manage.py so a monorepo with several Django
projects yields each project's root — the provider hook becomes plural
(discoverRootRouteFiles → string[]) and the main-thread pass loops over all
roots (inner-scoped continues, parser hoisted once per language).

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(group): remove dead code in Django root discovery (#1836 R9)

- Collapse the identical if/else in extractStarImports to one push.
- Drop the unreachable baseModule.startsWith('.') branch (baseModule is
  always a resolved slash-path or a bare absolute module — never dot-prefixed).
- Import DjangoFileReader from django.ts instead of re-declaring the type.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(group): walk Django includes once per prefix, not per file (#1836 R2)

The include() recursion guard was keyed on file path alone and shared across
the whole walk, so a urlconf included under two prefixes (a "diamond" — the
same app mounted at /v1/ and /v2/) emitted routes for only the first mount.

Key the guard on (resolvedFilePath, accumulatedPrefix) at all three sites
(function entry, path()-wrapped include, bare include) so a file reached
under two distinct prefixes is walked once per prefix while a genuine cycle
(same file + same prefix) still terminates — null/'' prefixes collapse to one
key so a no-prefix re-entry is treated as a cycle. MAX_INCLUDE_DEPTH remains
the backstop. Adds diamond + self-include-cycle tests.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(group): extract Django routes from non-list urlpatterns (#1836 R3)

findUrlpatternsLists only accepted a list-literal RHS, so common shapes
yielded zero routes: concatenation (urlpatterns = a + b), wrapper calls
(format_suffix_patterns([...]), i18n_patterns, staticfiles_urlpatterns), and
tuples.

Add collectUrlpatternContainers to descend binary_operator operands, known
wrapper-call list arguments, and tuples. Inherently-dynamic forms (DRF
router.urls, comprehensions, bare names) still yield nothing but now emit a
debug log so the silent-zero case is observable rather than mysterious.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(group): thread Django parser explicitly, drop module singleton (#1836 R4)

extractDjangoRoutes relied on a module-level _djangoParser set via
setDjangoParser before each call — hidden state that would break if a second
language ever used the include re-parse path, and an easy-to-forget contract.

Pass the tree-sitter parser as an explicit parameter of extractDjangoRoutes
(the extractRoutes provider hook already receives it) and delete the global
plus its setter. The Python provider wires it directly; tests pass the parser
in place of the removed setDjangoParser() call.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): isolate a throwing extractRoutes in the cross-file route pass (#1836 R5)

The main-thread cross-file route pass called provider.extractRoutes without a
guard, so a throw (e.g. a future grammar edge case in the include() walk) would
propagate out of the parse phase and abort the entire analyze — unlike the
worker, which isolates per-file failures.

Wrap the per-root extractRoutes call in try/catch that logs a warning and
continues to the next root. Export extractCrossFileRoutes and add a unit test
driving a stub provider whose extractRoutes throws, asserting the pass returns
[] and does not propagate.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(ingestion): bucket only route-capable languages in cross-file pass (#1836 R6)

extractCrossFileRoutes runs in the deferred band on every analyze (incl. warm
all-cache-hit runs). It now derives the set of languages whose provider exposes
the cross-file route hooks once, returns early if none do, and buckets only
those languages' paths — so a non-framework repo no longer pays to bucket the
languages it doesn't use here.

Route results are intentionally not persisted across runs, so a Django repo
still re-derives its routes each analyze; documented inline that cross-run
route caching is a deliberate follow-up rather than implemented here.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* style(group): prettier-format http-patterns/python.ts (#1836 R7)

The file was not formatted to the root .prettierrc (the consumer-path
normalizer used single-line try/catch and method chains), so the CI
quality/format check (`prettier --check .`) failed. Reflow only — no logic
change (`git diff -w` confines the change to normalizeConsumerPath's layout).

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(group): dedup Python URI detections by byte offset, not line arithmetic (#1836 R8)

The wrapper-URI dedup key was lineNum*1000+methodRow, which can collide for
distinct calls in files over 1000 lines (carry into the row term) and can
fail to dedup a genuine duplicate when a node straddles a line boundary.

Key on node byte offsets (`${pathNode.startIndex}:${methodNode.startIndex}`),
matching the sibling seenVarDetections dedup a few lines below.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(ingestion): end-to-end Django cross-file route extraction (#1836 R10)

Adds an integration test that runs runPipelineFromRepo against a Django
fixture whose project lives under backend/, asserting the resulting Route
graph nodes (/health, /api/items, /api/items/<int:pk>). This exercises the
previously-untested main-thread orchestration glue (discovery → parse →
extractRoutes → allExtractedRoutes → Route nodes) and, because the project is
in a subdirectory, regresses the subdir-discovery fix (R1) — a repo-root-only
resolver would discover nothing and emit zero Route nodes.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(group): anchor Django include() resolution at the project root (#1836 review F1)

resolveIncludedFile tried the bare repo-root candidate (app/urls.py) before the
project-relative one, so in a monorepo with both a repo-root app/ and a
backend/ Django project that also has an app/, include('app.urls') from the
backend project resolved to the WRONG service's routes.

Probe up-tree from the root urls.py for the nearest manage.py (the Django
project root / sys.path entry) and try that-anchored candidate first. Absolute
module paths like `app.urls` now resolve to <projectRoot>/app/urls.py
unambiguously. When no manage.py is reachable (e.g. unit tests with a urls-only
reader) the prior strategy order is preserved. Adds a monorepo wrong-app test.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(group): drop bogus Django provider source-scan, use graph routes (#1836 review F2)

The DJANGO_PATH_PATTERNS / DJANGO_URL_PATTERNS source scan emitted an HTTP
provider contract for every path()/re_path()/url() string literal, without
checking it was inside urlpatterns, without skipping include() mount points,
and without composing the include() prefix across files. For
`path('api/', include('app.urls'))` + child `path('items/', view)` it emitted
providers for `/api` (a mount, not a route) and `/items` (un-prefixed) — which
survived the exact-contract-ID dedup alongside the correct graph route
`/api/items`, polluting cross-repo matching with false providers.

Remove the Django provider patterns and their scan blocks. Django provider
contracts come from the graph Route nodes, which the ingestion route extractor
builds with includes already composed (and now correctly, per the other fixes).
Python HTTP *consumer* patterns (requests/wrapper) are unaffected.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(group): match method-agnostic Django providers to any-method consumers (#1836 review F3)

Django function views are method-agnostic, so extractDjangoRoutes emits
httpMethod '*'. That '*' was dropped by normalizeRouteMethod and then defaulted
to GET by the contract extractor, while the matcher only expanded wildcard
*consumers* — so a `POST /api/items` consumer never matched the Django
provider that was silently narrowed to GET.

- routes.ts: preserve '*' as a method-agnostic marker on the Route node, so the
  contract layer emits a wildcard provider (http::*::path) instead of GET.
- matching.ts: make findMatchingKeys symmetric — a specific-method consumer
  now matches an exact-method provider OR a wildcard (http::*::) provider on the
  same path, mirroring the existing wildcard-consumer expansion.

Co-Authored-By: HuyNguyenDinh <61400397+HuyNguyenDinh@users.noreply.github.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Dinh Huy <huynd86@fpt.com>
Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-21 20:11:30 +01:00
Gergő Magyar
aa8c567126
fix(lbug): stop --pdg analyze double-free (skip LadybugDB close-destructor crash) + harden connection serialization (#2264)
* fix(lbug): serialize singleton connection to stop --pdg analyze double-free

LadybugDB is single-writer and its Connection is NOT safe for concurrent
query execution. The WAL-checkpoint driver (5s setInterval) issued
`conn.query('CHECKPOINT')` on the same module-singleton `conn` the analyze
pipeline used for COPY. With --pdg the extra BasicBlock / REACHING_DEF / CDG /
POST_DOMINATE / TAINTED / CALL_SUMMARY / TAINT_PATH table COPYs outlast the
5s tick, so a checkpoint executed concurrently with an in-flight COPY on one
connection -> two libuv workers mutate shared native state -> heap corruption
("double free or corruption (out)" / SIGABRT, detected at the final
"Saving metadata..." free).

Fix: add conn-lock.ts (`withConnLock`, a promise-chain mutex) and run every
singleton-`conn` helper's full query + result-drain inside it: queryAndDrain
(when targetConn === conn), executePrepared, executeWithReusedStatement,
flushWAL, tryFlushWAL, getLbugStats, deleteAllInterprocTaintPaths,
deleteAllCallSummaries. Add an `if (inflight) return` reentrancy guard to the
driver tick so overdue ticks don't stack checkpoints. streamQuery is
intentionally NOT wrapped (read path, re-entrant per-row callback).

Reproduced the crash with concurrent queries on one raw Connection (serial =
stable); verified the fix drives the same overlap through the locked adapter
without crashing.

Tests: conn-lock serialization (no overlap / FIFO / throw-releases) and
driver reentrancy guard.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): lock deleteAllCommunitiesAndProcesses against the WAL driver (#2264)

The count + DETACH DELETE ran raw conn.query on the singleton connection during
incremental --pdg writeback while the WAL-checkpoint driver was live — the same
concurrent CHECKPOINT-vs-write double-free this branch fixes elsewhere. Wrap the
body in withConnLock, mirroring the already-wrapped deleteAllInterprocTaintPaths.

Adds test/integration/lbug-conn-serialization.test.ts (call-through withConnLock
spy) asserting the helper now acquires the lock, wired into the lbug-db vitest
project (and excluded from the default project so it doesn't run twice).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): lock queryImporters against the WAL driver (#2264)

queryImporters issued a raw conn.query on the singleton connection inside the
importer-BFS loop of incremental --pdg writeback, while the WAL-checkpoint driver
could fire a concurrent CHECKPOINT — the same double-free class. Wrap the read
(query + getAll + drain) in withConnLock.

Extends lbug-conn-serialization.test.ts with a routing assertion.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): lock deleteNodesForFile count query on the singleton path (#2264)

The per-table count read used a raw targetConn.query while the sibling DETACH
DELETE already routed through the locked queryAndDrain — an asymmetry that left
the count racing the WAL-checkpoint driver during incremental --pdg writeback.
Gate the count through withConnLock when targetConn === conn (the singleton),
matching queryAndDrain; per-query/temp connections stay lock-free.

Test asserts the count loop takes the lock once per filePath-bearing node table.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): drain DELETE results in the deleteAll* helpers (#2264)

deleteAllInterprocTaintPaths, deleteAllCallSummaries, and
deleteAllCommunitiesAndProcesses awaited conn.query(...DELETE...) but dropped the
returned QueryResult (only the count result was closed), leaking a native result
handle and violating the helpers' own "query + drain inside the lock" contract.
Close each delete result via closeQueryResults, matching the count handling.

Adds a seeded drain test (closeQueryResults fires for the DELETE result).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): make the conn-lock non-reentrancy invariant enforced, not just documented (#2264)

A future withConnLock-wrapped helper calling another wrapped helper would await
its own holder's tail and hang silently. Add an AsyncLocalStorage-based re-entry
guard: withConnLock throws a clear error when invoked from within a holding fn's
async context. A boolean flag can't do this — a legitimately-queued top-level
caller also runs while the lock is held; only AsyncLocalStorage distinguishes a
true nested call from normal contention.

Tests: re-entry throws (not deadlocks); sequential and concurrent top-level calls
do NOT false-fire; the lock releases after a re-entry throw.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* refactor(lbug): rename __resetConnLockForTests to _resetConnLockForTests (#2264)

Match the repo's single-underscore test-seam convention (_initLockPathForTest).
Pure rename of the @internal export and its sole importer.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* test(lbug): fix stale CHECKPOINT guard regex after the c.query refactor (#2264)

lbug-checkpoint.test.ts asserted exactly two CHECKPOINT sites by grepping the
literal `conn.query('CHECKPOINT')`. The connection-serialization refactor changed
flushWAL/tryFlushWAL to capture `const c = conn` and call `c.query('CHECKPOINT')`
inside withConnLock, so the literal grep found 0 and the test failed (expected 2).

Make the regex receiver-agnostic (`.query('CHECKPOINT')`) — preserves the guard's
intent (exactly two authorized CHECKPOINT sites; a third is a regression) while
tolerating the captured-receiver form.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): skip native close on CLI exit to dodge LadybugDB destructor double-free (#2264)

THE actual fix for the `analyze --pdg` crash. gdb shows the abort is a double-free
inside LadybugDB's own destructor during conn.close():

  "double free or corruption (out)" -> abort
    lbug::main::ClientContext::~ClientContext()
    lbug::main::Connection::~Connection()
    NodeConnection::Close(...)          <- conn.close() from safeClose

It reproduces with the WAL driver OFF and with serial load, so it is NOT the
checkpoint/COPY concurrency the rest of this branch serialized — it's a native
LadybugDB engine bug (@ladybugdb/core 0.17.1, latest stable) triggered by the
larger --pdg write set, firing during teardown AFTER a fully-written, checkpointed
index.

Fix: closeLbug({ skipNativeClose }) CHECKPOINTs for durability (flushWAL) then
skips conn.close()/db.close(), leaving the handles referenced so no GC finalizer
re-runs the destructor. The CLI analyze command (success, error, and SIGINT paths
all process.exit) opts in via skipNativeCloseOnExit; long-lived callers (MCP
server, tests) keep the real close. Mirrors the pool adapter's fire-and-forget
native close and the ONNX native-cleanup philosophy.

Validated end-to-end: `analyze --pdg --force` now exits 0 with a 193,876-node
index; re-opening it (no --force) reads clean and reports up-to-date, proving the
CHECKPOINT-only persistence is durable without db.close().

Workaround for an upstream LadybugDB bug (ClientContext destructor double-free).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): keep conn.close()/db.close() literals out of the closeLbug comment (#2264 review P1-1)

The skipNativeClose comment in closeLbug contained the literal `conn.close()`/
`db.close()`, which the structural guard test (lbug-checkpoint.test.ts:52-53 —
"closeLbug must not inline conn.close()/db.close()") greps for and fails on.
Reword the comment to describe the native close without the literal tokens; the
code already delegates close exclusively to safeClose, so the guard's intent holds.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): real close on the analyze error path to avoid a hang under skipNativeClose (#2264 review P1-2)

The CLI error handler soft-returns (process.exitCode = 1) instead of forcing
exit, relying on the released native handles to let Node terminate. The earlier
commit made runFullAnalysis's error-path closeLbug skip the native close, leaving
live LadybugDB handles that keep the event loop alive forever — a post-init
analyze failure would hang. Only the SUCCESS path (which guarantees a following
process.exit) skips the native close; the error path now always closes for real.
A late-error close could still abort in the destructor, but that terminates the
process — it does not hang.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(server): skip native close in the analyze worker to avoid the LadybugDB destructor crash (#2264 review P2-3)

The forked server analyze worker runs runFullAnalysis then force-exits
(process.exit(0)). With a real native close inside runFullAnalysis, the LadybugDB
ClientContext destructor can double-free after --pdg writes and abort the worker
BEFORE it sends 'complete', failing the parent's analyze. Pass
skipNativeCloseOnExit: true so the worker checkpoints for durability and lets its
process.exit reclaim the handles — same about-to-exit contract as the CLI.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(cli): force exit on a soft error-return when LadybugDB handles are open (#2264 review P1)

The full-analysis success path skip-closes LadybugDB (handles left open, reclaimed
by process.exit). If a post-finalize step (assertAnalysisFinalized) then throws,
the outer catch soft-returns (process.exitCode = 1) — and with native handles
open the event loop never drains, so the process HANGS instead of exiting 1.

Guard once at the analyzeCommand wrapper, after the try/finally: if isLbugReady()
(handles still open) the analyze actually ran and we must force the exit. The
success path never reaches here (analyzeCommandImpl process.exit(0)s itself);
early-validation errors and unit tests that mock runFullAnalysis never open the DB
(isLbugReady() false), so the soft return is preserved.

Adds analyze-finalize-failure-exits.test.ts (force-exits when handles open; does
NOT when they aren't). The analyze-*.test.ts that mock lbug-adapter now also mock
isLbugReady (vitest throws on accessing an undefined export of a mocked module).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): skip the native close on the analyze error path too (#2264 review P2)

A real conn.close() on the error path after large --pdg writes can itself hit the
LadybugDB ClientContext destructor double-free → SIGABRT, degrading an actionable
exit-1 error into a raw native abort. Switch the error-path close to
skipNativeClose (mirroring the success path). Safe now that the CLI catch
force-exits when isLbugReady() (the prior commit): handles left open are reclaimed
by that guaranteed process.exit, so the process terminates without the abort and
without hanging. flushWAL keeps the partial index durable.

Depends on the prior commit (CLI force-exit guard).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): run loadCachedEmbeddings reads under withConnLock (#2264 review P2)

loadCachedEmbeddings issued raw conn.query reads on the singleton connection
outside withConnLock — safe today only because it runs before the WAL-checkpoint
driver starts, an ordering invariant not enforced by code. Wrap the whole read in
withConnLock so a future reorder can't race a CHECKPOINT on the connection. Leaf
read; no nested wrapped helpers.

Adds a routing assertion to lbug-conn-serialization.test.ts.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* test(lbug): de-brittle the close/CHECKPOINT structural guard (#2264 review P2)

lbug-checkpoint.test.ts grepped the adapter SOURCE (comments included) for
conn.close()/db.close()/.query('CHECKPOINT') literals, coupling a passing test to
comment wording — a prior commit had to reword a comment just to keep it green.
Strip comments from the read source before the structural assertions so they
reflect code only; the invariant (exactly two CHECKPOINT sites; close calls only
in safeClose) is preserved and no longer breaks on a comment edit.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* refactor(lbug): rel COPY uses the captured writeConn, matching node COPY (#2264 review P3)

The relationship COPY passed the module-level `conn` to copyCsvWithRetry while the
node COPY uses the captured `writeConn`. Use `writeConn` for both — one captured
reference for the whole bulk load, removing the latent identity dependency. Same
object during analyze (`conn` is only reassigned at open/close under the session
lock), so the queryAndDrain `targetConn === conn` lock gate still engages.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(server): make the analyze worker's IPC send() failure-safe (#2264 review P3)

The worker's send() used `process.send?.(msg)` — the `?.` guards an undefined
channel but not a throw from an already-closed one (ERR_IPC_CHANNEL_CLOSED). A
throw in the catch-branch send() would escape the message handler and skip the
scheduled `setTimeout(process.exit(0))`, stranding the worker (with skip-close
leaving native handles open, #2264). Wrap process.send in try/catch so the exit
always fires; a vanished child is a failure to the parent regardless.

Not unit-tested: send() is module-private and importing the worker registers
process signal handlers; the change is a defensive try/catch around one call.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(cli): bound the SIGINT cleanup CHECKPOINT so Ctrl-C stays responsive (#2264 review P3)

The SIGINT handler calls closeLbug({skipNativeClose:true}), whose flushWAL
CHECKPOINT queues behind the connection lock held by an in-flight COPY — so a
single Ctrl-C during a long --pdg COPY appeared hung until the COPY released.
Race the cleanup against a 2s timeout before process.exit(130); the WAL replays
on the next analyze. The double-Ctrl-C escape hatch is unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(server): report analyze-worker errors over IPC, never swallow (#2264 P3)

The worker's send() swallowed IPC failures (and a prior pass logged them to
stderr). Per review, all worker errors must be reported back to the parent over
the existing IPC channel (send({ type: 'error' })) and nothing silently dropped.

- send() no longer catches: a dead channel (ERR_IPC_CHANNEL_CLOSED) throws
  instead of being swallowed.
- Every handler (uncaughtException, unhandledRejection, SIGTERM, the analysis
  message handler) reports its error via send() in try and schedules process.exit
  in finally, so a throw from send() can no longer skip the exit and wedge the
  worker — the P3 'schedule the exit so it always fires' fix, without a swallow.
- SIGTERM cleanup failures are now reported to the parent instead of an empty
  catch {}.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(workers): report every caught parse-worker error over IPC (#2264)

The parse worker swallowed or only-locally-logged several caught errors, so they
never reached the pool: the per-language-group catch was an empty catch {} that
silently dropped the whole group on any throw (not just an unavailable grammar),
the per-file parse/query-execution catches only logger.warn'd (worker-thread
local), and the C++ template-constraint catch swallowed silently.

Route all work-path catches through a new reportWarning() helper that posts
{ type: 'warning', message } to the pool (which logs it on the main thread AND
resets the worker idle timer, so a worker grinding through failing files isn't
falsely idle-evicted), with a logger.warn fallback for the non-worker path. The
existing inline warning sites (query-compilation, the extractParsedFile callback,
CFG build) are migrated to the same helper.

The 4 optional-grammar module-load guards (Swift/Dart/Kotlin/C) stay silent: they
run before the 'ready' handshake and their absence is already surfaced via
result.skippedLanguages + the isLanguageAvailable gate. Fatal/group-aborting
errors continue to flow through the message handler's { type: 'error', errorStack }.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* test(cli): harden finalize-failure test against forked-worker death (#2264)

analyzeCommand calls installFatalHandlers(), which registers global
unhandledRejection/uncaughtException handlers that call the REAL process.exit(1).
Across this file's vi.resetModules() reimports they accumulate on `process`, and
under CI timing a stray async rejection fired one while no process.exit spy was
active — killing the forked vitest worker ("Worker exited unexpectedly"), which
only surfaced once the full test lanes finished (they were pending at review time).

Keep process.exit spied for the whole file (beforeAll/afterAll) so a fatal handler
can never really exit mid-run, strip the handlers installFatalHandlers added in
afterAll (preserving vitest's own, snapshotted up front) before restoring the real
process.exit, and reset process.exitCode so the worker exits clean. Passes in
isolation and grouped; behavior under test is unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(analyze): don't take the up-to-date fast path for an unregistered repo (#2264)

A prior 'analyze --name X' that hit a registry name collision writes meta.json
(meta-save runs before registerRepo) but fails before registering — leaving the
index up-to-date but UNREGISTERED. A later 'analyze --name X --allow-duplicate-name'
then matched the up-to-date gate and early-returned WITHOUT registering, so the
repo stayed invisible to list_repos/MCP and the CLI's assertAnalysisFinalized
rejected it. --allow-duplicate-name could never heal it.

This was latent on main, masked by the very close-hang this PR fixes: the lingering
process pushed the cli-e2e #829 step-3 analyze past its 60s spawn timeout
(status===null → the test's vacuous early-return). With the hang gone the analyze
exits promptly, exit 1 surfaces, and the bug becomes deterministic on all platforms.

Fix: the up-to-date fast path now short-circuits only when the repo is actually
registered (new isRepoRegistered helper, sharing assertAnalysisFinalized's exact
canonical/case-folded membership check). An indexed-but-unregistered repo falls
through to the pipeline, which registers it honoring allowDuplicateName. Already
registered repos keep the fast path unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* chore: trigger CI re-run

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(analyze): gate up-to-date self-heal on --allow-duplicate-name (#2264)

The prior commit healed every up-to-date-but-unregistered repo by falling through
to register it — which broke the #1169 guard: a plain `analyze` of an up-to-date
repo whose registry entry is missing MUST fail loudly ("Analysis did not finalize")
rather than silently register a possibly half-finalized index.

Distinguish the two causes of "unregistered":
- collision-rejected + user re-runs with --allow-duplicate-name → explicit intent
  to register, so fall through to the pipeline and register it (#829).
- plain analyze, registry missing/wiped → keep the #1169 fail-loud behavior.

So self-heal is gated on options.allowDuplicateName; isRepoRegistered is only read
on that opt-in branch, so the common fast path keeps its single-stat cost. Both
cli-e2e guards (#1169 fail-loud, #829 heal) now pass.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(server): skip the native close on analyze-worker SIGTERM cancellation (#2264 P2)

cancelJob() / the 30-min timeout (analyze-job.ts) send SIGTERM to the forked
analyze worker, but its SIGTERM handler still did a full `await closeLbug()`
(native conn/db teardown) — even though normal completion now skips it via
skipNativeCloseOnExit. A cancelled or timed-out --pdg server analyze could
therefore still hit the LadybugDB ClientContext destructor double-free, or block
behind the in-flight COPY's connection lock before exiting.

Mirror the CLI SIGINT path: a best-effort CHECKPOINT with
closeLbug({ skipNativeClose: true }) bounded by a 2s Promise.race timeout, then
process.exit(0) (which reclaims the handles). A CHECKPOINT failure is reported to
the parent over IPC rather than swallowed; the exit is in .finally so it always
fires.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* test(cli): import analyze once in the finalize-failure test (#2264 CI)

The test failed deterministically only on the ubuntu coverage lane (2/2 runs)
while passing locally and in isolation, incl. with --coverage. Cause: the
vi.resetModules() + per-test `await import('analyze.js')` re-instrumented the
ENTIRE analyze module graph on every test; under --coverage on the
memory-constrained CI runner that OOM/crashed the forked worker ("Worker exited
unexpectedly" → the assertion never ran).

Import analyzeCommand ONCE and drive the mocks per-test via mockReturnValue
(resetModules wasn't needed — the hoisted mocks are controllable per-test). Keeps
the whole-file process.exit spy + afterAll fatal-handler strip from the prior pass.
Behavior under test is unchanged; passes in isolation and with --coverage.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* test(cli): pre-set NODE_OPTIONS heap cap so ensureHeap can't re-exec (#2264 CI)

Root cause of the ubuntu-coverage-only failure (3/3 CI runs, passing locally):
analyzeCommand calls ensureHeap() (analyze.ts:715), which RE-EXECS the process —
spawning `node <heap-flags> <argv>` with vitest's argv — unless NODE_OPTIONS
already carries --max-old-space-size (analyze.ts:498). That re-exec killed the
forked vitest worker ("Worker exited unexpectedly" → the assertion never ran).
It only reproduced on the memory-constrained CI runner because locally a high V8
heap-size-limit also short-circuits ensureHeap (analyze.ts:501).

Reproduced locally with NODE_OPTIONS="--no-warnings" (no heap cap) → same failure;
fixed by pre-setting --max-old-space-size in beforeAll (restored in afterAll), the
same workaround cli-e2e uses. Verified: passes under the repro condition, normally,
and with --coverage.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(server): worker asserts finalization before reporting complete (#2264 P2)

The forked analyze worker reported {type:'complete'} straight after runFullAnalysis,
so a server/web analyze of a half-finalized repo (meta.json written but the global
registry entry missing — a prior collision-aborted run, or a wiped registry) was
reported successful while the repo stayed unregistered/invisible to list_repos. The
CLI already guards this with assertAnalysisFinalized; the worker did not.

Extract the run -> finalize -> report contract into a side-effect-free
analyze-worker-core seam (the entry module's top-level process.on handlers make it
untestable directly) and call assertAnalysisFinalized before sending complete — a
failure is reported as {type:'error'} instead of a false success. The seam is
dependency-injected and unit-tested with fakes; the entry module wires the real deps
and keeps owning process.exit.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(server): coordinate worker SIGTERM cancellation with completion (#2264 P3)

The worker SIGTERM handler unconditionally sent {type:'error','Analysis cancelled'}
and didn't coordinate with the message handler that sends complete, so a cancel near
the finish line could report a cancelled job complete, or a late SIGTERM could flip
an already-complete job to failed.

Add a single terminal-outcome claim (createTerminalClaim) shared by the message
handler and the SIGTERM handler: whoever claims it first reports its terminal
message; the other skips its terminal send. Single-threaded JS makes the
check-and-set atomic. The cleanup + process.exit still run regardless.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(server): make a job's terminal outcome immutable on the parent side (#2264 P3)

Defense-in-depth complement to the worker terminal-claim: the launcher's message
handler and the job manager's updateJob both lacked a terminal-state guard, so a
late worker IPC message (a SIGTERM-driven 'error' after 'complete', or vice versa)
could re-release the repo lock and flip the reported status. (Touches parent-side
files outside the original PR diff — deliberate, clearly-scoped.)

- analyze-job.ts updateJob: drop any update once the job is already terminal (the
  transition INTO terminal still applies, since status isn't terminal yet then).
- analyze-launch.ts message handler: return early when the job is already terminal,
  mirroring its sibling exit handler.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* test(lbug): assert deleteAllInterprocTaintPaths + deleteAllCallSummaries route through withConnLock (#2264)

The lock-routing suite covered 4 singleton-conn helpers but not these two
withConnLock-wrapped delete helpers (lbug-adapter.ts), which also run during the
incremental --pdg writeback window — so a revert of either wrapper would have gone
uncaught. Add the two routing assertions to complete the coverage the file's header
claims (every singleton-conn helper reachable during the WAL-driver window).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* test(lbug): assert temp-conn deleteNodesForFile skips withConnLock (negative gate, #2264)

The positive case (singleton deleteNodesForFile locks each per-table count) was
covered, but not the negative branch of the targetConn === conn gate: a per-file/temp
connection (dbPath provided) must NOT take the singleton lock, or temp-conn callers
would needlessly contend with it. Add the negative-gate assertion so a regression
that unconditionally locks is caught.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* test(cli): assert the force-exit forwards process.exitCode, not a hardcoded 1 (#2264)

The existing cases asserted process.exit(1), but since the error catch always sets
exitCode=1 they couldn't distinguish forwarding (process.exit(process.exitCode ?? 1))
from a hardcoded 1. Add a case on the alreadyUpToDate path — which returns without
setting exitCode or calling process.exit — with a pre-set exitCode=2 and isLbugReady
forced true, asserting the wrapper force-exits with 2. Proves the exitCode-forwarding
branch.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* refactor(lbug): replace skipNativeClose flag with a dedicated closeLbugBeforeExit() (#2264)

The "skip the native close only when a process.exit is guaranteed to follow"
invariant was enforced by convention across ~4 call sites via a boolean option on
closeLbug — the exact foot-gun the review flagged. Encode the contract in the name
instead:

- New closeLbugBeforeExit() (CHECKPOINT via flushWAL, then return without the native
  close); closeLbug() drops the option and is the plain real-close again.
- run-analyze success + error paths: options.skipNativeCloseOnExit ?
  closeLbugBeforeExit() : closeLbug(). CLI SIGINT + worker SIGTERM call
  closeLbugBeforeExit() directly. skipNativeCloseOnExit stays on AnalyzeOptions as the
  caller's "I will exit" signal.
- lbug-checkpoint.test: assert closeLbugBeforeExit exists + has no native close, and
  match `closeLbug =` precisely so it doesn't prefix-match the new function.
- Retarget the conn-serialization integration case to closeLbugBeforeExit(); add the
  new export to the 12 analyze-*.test.ts lbug-adapter mocks.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* refactor(lbug): extract isSharedSingletonConn predicate for the lock gate (#2264)

The targetConn === conn object-identity gate (decides whether an op takes
withConnLock) was duplicated inline in queryAndDrain and deleteNodesForFile with
its own explanatory comments. Extract a single isSharedSingletonConn(c) predicate
with the rationale in one place; both sites route through it. Behavior unchanged —
covered by the lock-routing tests' positive (singleton locks) and negative
(temp-conn skips) cases.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* refactor(lbug): share the bounded checkpoint-then-exit cleanup (SIGINT/SIGTERM) (#2264)

The CLI SIGINT handler (analyze.ts) and the worker SIGTERM handler (analyze-worker.ts)
had near-identical Promise.race([closeLbugBeforeExit, timeout]).finally(exit) blocks
with separately-hardcoded 2s timeouts. Extract boundedCheckpointBeforeExit into a
shared shutdown-helpers module — parameterized by exit code, an optional flush-error
reporter (worker reports over IPC), and an optional beforeExit hook (CLI flushes the
logger). checkpoint + exit are injectable test seams, so it's unit-tested without the
real LadybugDB close or process.exit.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* refactor(storage): extract registryPathEquals for the registry case-fold compare (#2264)

The Windows case-insensitive / POSIX case-sensitive registry-path comparison was
duplicated across 6 sites (registerRepo dedup, the fresh-merge findIndex,
removeRepo/removeBranchIndex local 'matches' helpers, isRepoRegistered, and the
path-match lookup). Extract a single registryPathEquals(a, b) predicate so every
registry lookup/dedup/finalize check answers identically; route all 6 through it.
No behavior change — repo-manager + finalize-invariant suites pass (incl. the
Windows case-fold case).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* feat(lbug): runtime-guard streamQuery against the WAL-checkpoint driver (#2264)

streamQuery is deliberately not wrapped in withConnLock (its per-row callback can
re-enter the adapter), so its unlocked per-row reads could race a CHECKPOINT on the
shared connection — the corruption window the lock serializes everything else
against. That invariant was comment-only, safe today only because the serve/read
path forks analyze workers. Make it enforced:

- lbug-adapter: a walDriverActive flag + markWalDriverActive(bool); streamQuery
  throws an actionable error when the driver is active.
- wal-checkpoint-driver: arm the flag on start, disarm in stop() AFTER the in-flight
  CHECKPOINT drains (clearing earlier would briefly allow a race).

A future in-process analyze overlapping a stream now fails loud instead of
corrupting native state. (reentrancy test's lbug-adapter mock gains the new export.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* docs(lbug): explain why closeLbugBeforeExit skips finalizeLbugSidecarsAfterClose (#2264)

Document the deliberate trade-off: the skip-close path intentionally does NOT run
the sidecar-finalize step that safeClose runs after a real close. It's designed for
released WAL handles; running it with the connection still open risks a Windows
file-lock on the in-use WAL. The CHECKPOINT already made the index durable and the
next run's preflightLbugSidecars reconciles residual WAL — the deferral is the
accepted cost of skipping the native close to dodge the destructor double-free.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

* fix(lbug): move WAL-driver-active flag to its own module (fix mock ripple, #2264)

The streamQuery guard (4449bb4a) put markWalDriverActive in lbug-adapter, and the
wal-checkpoint-driver imported it from there. That broke every test mocking
lbug-adapter while loading the real driver — CI's ubuntu lane caught
run-analyze-fts-repair.test.ts ('No markWalDriverActive export on the mock').

Move the one-bit shared flag to a dedicated wal-driver-state module: the driver
toggles markWalDriverActive there, streamQuery reads isWalDriverActive there, and
lbug-adapter no longer carries it — so mocking lbug-adapter no longer has to stub
the toggle. run-analyze-fts-repair now passes untouched; the reentrancy test's mock
addition is reverted (no longer needed).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JBJomjoTdBV2eveDVq4JMm

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-21 15:25:56 +01:00
Gergő Magyar
78b4077d8a
feat(impact): opt-in PDG-backed impact mode - statement + inter-procedural slicing, resolved-callee-id soundness, mutation-oracle validated (#2227)
Some checks are pending
CodeQL / Analyze (javascript-typescript) (push) Waiting to run
CodeQL / Analyze (python) (push) Waiting to run
Gitleaks / gitleaks (push) Waiting to run
Publish / Classify release event (push) Waiting to run
Publish / RC guard (marker + release-PR skip) (push) Blocked by required conditions
Publish / ci (push) Blocked by required conditions
Publish / Publish to npm (push) Blocked by required conditions
Publish / Build & Push RC Docker images (push) Blocked by required conditions
Scorecard / Scorecard analysis (push) Waiting to run
Trivy Image Scan / Trivy (gitnexus-cli) (push) Waiting to run
Trivy Image Scan / Trivy (gitnexus-web) (push) Waiting to run
2026-06-20 12:04:32 +01:00
henry201605
a691dcb320
feat(routes): persist HTTP method on Route nodes (#2138 part 1/2) (#2234)
* feat(routes): persist HTTP method on Route nodes

Part 1 of 2 for issue #2138 (skip redundant HTTP provider source-scan).

The ingestion routes phase already knows each route's HTTP verb —
`ExtractedRoute.httpMethod` (Spring/Laravel framework routes) and
`ExtractedDecoratorRoute.httpMethod` (decorator routes) — but dropped it
when creating the Route graph node. As a result `HttpRouteExtractor`'s
graph-assisted path could not recover the verb for `framework-route`
sources (whose edge `reason` is undecodable by `methodFromRouteReason`)
and had to fall back to re-scanning the handler source.

Changes:
- routes phase: carry `httpMethod` into `RouteEntry` and persist it as
  `Route.method` (filesystem-derived Next.js/Expo/PHP routes have no
  structural verb, so they stay method-less).
- HttpRouteExtractor: HANDLES_ROUTE query now returns `route.method`;
  `extractProvidersGraph` prefers it and falls back to the edge reason
  for older indexes / method-less routes (fail-open, fully backward
  compatible).
- tests: graph-method precedence, multi-verb handler disambiguation via
  the persisted verb, case normalization, and old-index fallback.

This change is intentionally NOT a performance optimization on its own:
the graph path still parses handler files to recover the handler *name*.
Eliminating that parse (and thus the redundant source-scan #2138 targets)
requires linking HANDLES_ROUTE to the handler symbol, which lands in
Part 2. This PR is the data-completeness groundwork for that.

Refs #2138

* test: account for new Route.method in blade route-registry assertion

The routes phase now persists httpMethod onto RouteEntry/Route nodes, so
the strict toEqual on the framework-route registry entry must include the
new method field.

* fix(routes): persist Route.method end-to-end + real-lbug round-trip test

Addresses review on #2234 (magyargergo + tri-review): the prior commit
read `route.method` in HANDLES_ROUTE_QUERY but never added the column to
the schema/persistence path, so against a real LadybugDB the query failed
to bind (`Cannot find property method for r.`) and the `catch { return [] }`
silently swallowed it — regressing the graph-assisted HTTP provider path.

- schema: add `method STRING` to ROUTE_SCHEMA.
- csv-generator: write `method` in the Route CSV row (header + row, column
  order aligned with the COPY statement).
- lbug-adapter: add `method` to getCopyQuery('Route').
- routes phase: normalizeRouteMethod() canonicalizes the verb to upper-case
  and skips non-verbs — Laravel resource/apiResource carry httpMethod
  values like `resource`/`apiResource`, which must not land a junk method.
- http-route-extractor: log at debug when the HANDLES_ROUTE / FETCHES graph
  query throws, so a total graph-provider outage is observable instead of
  silently swallowed. Export HANDLES_ROUTE_QUERY for the round-trip test.
- tests: add a real-lbug round-trip (graph -> CSV -> COPY -> HANDLES_ROUTE_QUERY)
  asserting the verb persists and reads back; update the blade registry
  assertion for the normalized (upper-case) method.

Refs #2138

* fix(csv): coerce Route.method to string for escapeCSVField typecheck

node.properties.method is typed unknown (not a declared property), so
`x || ''` stayed unknown and failed tsc against escapeCSVField's
string|number param. Coerce explicitly with String(... ?? '').

* test(bench): regenerate emit-persistence fingerprint for Route.method column

Adding the method column to route.csv changes the byte-identity
fingerprint of the emit-persistence benchmark (the synthetic graph's
route.csv header now includes 'method'). scaling_ratio unchanged (~0.9,
linear); this is the documented regenerate-on-legitimate-emit-change
path. Streaming baseline (BasicBlock/PDG) is unaffected.

---------

Co-authored-by: henry <zhangwei2017@unipus.cn>
Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-20 06:30:16 +01:00
azizur100389
fff01189b1
fix(cpp-hooks): handle pack-base comments and missing hook overrides (#2247) 2026-06-18 21:55:46 +01:00
azizur100389
72876ab69a
fix(cpp): rank homogeneous braced-init overloads (#2214)
Some checks failed
CodeQL / Analyze (javascript-typescript) (push) Has been cancelled
CodeQL / Analyze (python) (push) Has been cancelled
Gitleaks / gitleaks (push) Has been cancelled
Publish / Classify release event (push) Has been cancelled
Scorecard / Scorecard analysis (push) Has been cancelled
Trivy Image Scan / Trivy (gitnexus-cli) (push) Has been cancelled
Trivy Image Scan / Trivy (gitnexus-web) (push) Has been cancelled
Publish / RC guard (marker + release-PR skip) (push) Has been cancelled
Publish / ci (push) Has been cancelled
Publish / Publish to npm (push) Has been cancelled
Publish / Build & Push RC Docker images (push) Has been cancelled
2026-06-16 18:29:28 +01:00
Gergő Magyar
b895a20415
perf(lbug): overlap node COPY with relationship emit (#2203) (#2226)
* test(lbug): lock PARALLEL=false as a tested correctness invariant (#2203)

The parallel CSV reader (Kuzu-derived, default PARALLEL=true) cannot parse
quoted fields with embedded newlines (kuzudb/kuzu#5778); our content/text
columns hold source code, so PARALLEL=false is mandatory for correctness.
Add a live-DB multiline-quoted round-trip that fails if it is ever flipped,
plus a static guard on the generated COPY queries. Export COPY_CSV_OPTS /
getCopyQuery for the static assertion; document the invariant at the source.

* feat(lbug): expose node/rel phase boundary via onNodePhaseComplete hook (#2203)

streamAllCSVsToDisk now fires an optional onNodePhaseComplete(nodeFiles)
callback right after node CSVs are flushed and before the relationship pass
writes any rel_*.csv — the boundary the COPY-overlap leg needs. The node-file
manifest construction is hoisted above the rel pass and reused in the return,
so output is byte-for-byte identical when no callback is supplied (verified by
the emit bench fingerprint and the splitRelCsvByLabelPair differential oracle).
The callback is not awaited, so the rel pass runs concurrently with the
caller's node COPY.

* perf(lbug): overlap node COPY with relationship emit (#2203)

The deferred parallelism leg of #2203. LadybugDB is single-writer and its
parallel CSV reader is unsafe for our multiline content (kuzudb/kuzu#5778), so
the only safe parallelism is pipeline-overlap: node COPY (uses conn, never the
rel files) runs concurrently with the relationship emit pass (writes rel_*.csv,
never conn). Node COPY now starts at streamAllCSVsToDisk's onNodePhaseComplete
boundary while the rel pass keeps writing; the relationship COPY still waits for
node COPY (FK precondition), so DB load order and content are unchanged.

- Extract copyNodeCSVs; start it in the hook (overlap) or after emit (serial).
- GITNEXUS_SERIAL_LBUG_LOAD=1 forces the legacy strictly-sequential path
  (operator escape hatch + differential-test oracle).
- Settle the in-flight node-COPY promise on emit failure (no unhandled
  rejection); rethrow node-COPY errors at the FK barrier.
- Preserve the PDG manifest merge + collision guards (node merge at the hook,
  rel merge before rel COPY) and all retry/fallback/cleanup behavior.
- PROF_LBUG_LOAD gains mode=overlap|serial; copy-nodes becomes the residual
  node-COPY time after emit (trends to 0 as overlap hides it).

* test(lbug): differential gate — overlap load === serial load (#2203)

Loads one fixture (multiple node tables, multiple edge pairs, multiline File
content + BasicBlock text) into two fresh DBs — once via the default node-COPY
‖ rel-emit overlap, once via GITNEXUS_SERIAL_LBUG_LOAD=1 — and asserts the two
databases are content-equivalent: identical per-table node counts, per-type
edge counts, byte-for-byte multiline content/text, and identical
insertedRels/skippedRels/warnings. This is the issue's byte-identical-content
acceptance gate for the parallelism leg.

* fix(review): apply autofix feedback

- csv-generator: onNodePhaseComplete doc-contract now matches reality (a sync
  throw is allowed and is how loadGraphToLbug surfaces the manifest collision
  guard) — drops the inaccurate 'must not throw synchronously' line.
- lbug-adapter: copyNodeCSVs totalSteps is the node-table count (drop the +1
  rel-step holdover; the rel COPY has its own progress line).
- lbug-adapter: on emit+node-COPY double-failure, log the swallowed node-COPY
  error before rethrowing the emit error (diagnosability).
- lbug-load-prof test: assert mode=overlap on the default path.

* fix(test): use mkdtemp for secure temp dirs (CodeQL js/insecure-temporary-file)

CodeQL flagged lbug-load-overlap.test.ts writing a file into a predictable
os.tmpdir() path. Create the base temp dir with fs.mkdtemp (atomic, random
suffix) in both new live-DB tests, and switch to the gitnexus-lbug- prefix that
TEST_FIXTURE_PREFIXES recognizes so the Windows stale-sidecar sweep covers
these fixtures.

* fix(lbug): check PDG manifest rel-pair collision before node COPY (#2203)

Found by Codex in tri-review. The manifest rel-pair collision guard ran after
the FK barrier (after node COPY committed), so on that should-never-happen
error branch the overlap path left orphan node rows AND the
GITNEXUS_SERIAL_LBUG_LOAD escape hatch diverged from the legacy 'validate
manifest before any COPY' behavior. Move the rel merge + collision check ahead
of beginNodeCopy/the barrier: the serial path now detects a collision before
committing any node rows (legacy parity restored — the escape hatch is a
faithful oracle again), and the overlap path detects it as early as csvResult
is available. The node-collision guard already ran before node COPY (in the
hook).

* test(lbug): cover rel-emit failure with node COPY in flight (#2203)

Resolves a P1 review gap on PR #2226: the overlap's catch(emitErr) branch
(settle the in-flight node-COPY promise, then rethrow the emit error) was
untested. Fault-injects via a vi.mock of streamAllCSVsToDisk that fires
onNodePhaseComplete (starting a real node COPY on a live DB) then throws,
asserting loadGraphToLbug rejects with the emit error and no unhandled
rejection leaks. Also covers the both-fail case (node COPY error is logged,
emit error still wins). Listener removed in finally; macrotask queue flushed
before the assertion so it can't pass vacuously.

* test(lbug): cover node-COPY hard-failure rethrow at the FK barrier (#2203)

Resolves the second P1 review gap on PR #2226. Mocks emit to fire
onNodePhaseComplete with a nodeFiles entry pointing at a missing CSV (a
bind-time COPY error that IGNORE_ERRORS does not suppress) and otherwise
succeed, so copyNodeCSVs throws, the error is captured in nodeCopyError, and
loadGraphToLbug rethrows it at the FK barrier — asserted via rejects /COPY
failed for File/.

* test(lbug): cover PDG manifest rel-pair collision in overlap + serial (#2203)

Resolves the P2 gap behind the Codex tri-review finding: the manifest rel-pair
collision guard (moved ahead of node COPY in ad195582) had no test. A leaky
graph with a structural BasicBlock->BasicBlock edge (routed by id-prefix, no
BasicBlock nodes — isolating the rel-pair clash from the node-CSV one) plus a
PdgEmitSink manifest declaring the same pair makes loadGraphToLbug reject with
the rel-pair collision error, asserted on both the overlap (default) and serial
(GITNEXUS_SERIAL_LBUG_LOAD=1) paths.

* perf(lbug): yield the event loop periodically during relationship emit (#2203)

Resolves a P2 review finding on PR #2226: the relationship-emit loop ran long
synchronous stretches between write-stream drain awaits, which could starve the
overlapped node-COPY callbacks on fast I/O and erode the node-COPY-||-rel-emit
overlap. Yield via setImmediate every REL_YIELD_EVERY (5000) edges so the node
COPY and drains get scheduling time. Scheduling-only — emit bench fingerprint
unchanged (byte-identical), csv-pipeline determinism + overlap differential
green.

* refactor(lbug): extract shared copyCsvWithRetry helper (#2203)

Resolves a P2 maintainability finding on PR #2226: the COPY + IGNORE_ERRORS
retry block was duplicated in copyNodeCSVs and the inline relationship-COPY
loop. Extract copyCsvWithRetry(conn, query, onError); the callback receives the
RAW retry error so each site keeps its own message shape + slice length (node
throws, slices 200; relationship warns + records the failed pair, slices 80).
Behavior-preserving — guarded by the live-DB round-trips plus the new
node-COPY-failure and overlap error-path tests.

* docs(lbug): document loadGraphToLbug non-transactionality (#2203)

Resolves the advisory review finding on PR #2226: loadGraphToLbug runs
independent COPYs with no surrounding transaction, so a mid-load failure leaves
a partial DB and recovery is a --force re-analyze. Make that contract explicit
on the function so callers don't assume atomicity.
2026-06-16 10:57:26 +01:00
azizur100389
ff0124e067
feat(cpp): parse CUDA source extensions (#2213)
* feat(cpp): parse CUDA source extensions

* test(cpp): characterize CUDA parser limitations

---------

Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-16 07:32:53 +01:00
Gergő Magyar
7d12ea8fd9
feat(analyze): private GitHub repos via PAT + Azure DevOps Server support (#2076, #2210) (#2223) 2026-06-16 05:49:02 +01:00
Gergő Magyar
3c82361b66
perf(cfg): streaming/chunked PDG graph emit for full-kernel-scale repos (#2202) (#2216) 2026-06-16 05:04:10 +01:00
Gergő Magyar
df08ecc397
perf(lbug): cut graph-DB emit/persistence wall time (#2203) (#2215)
* perf(lbug): add PROF_LBUG_LOAD persistence-path timing breakdown (#2203 U1)

loadGraphToLbug is un-timed today; the analyze 'emit' number is the
scope-resolution emit bucket, not the CSV->COPY persistence path. Add a
zero-cost-when-off per-stage breakdown (csv-emit/copy-nodes/rel-split/
copy-rels/fallback/total + node/rel counts) gated by PROF_LBUG_LOAD=1,
mirroring the PROF_SCOPE_RESOLUTION pattern. Document the flag in README.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(lbug): route relationships to per-pair CSVs in the emit pass (#2203 U2)

Relationships were written once to a monolithic relations.csv, then re-read
line-by-line (regex per edge) and re-split into per-FROM->TO-label-pair files
before COPY — writing and reading the entire ~1M-edge set twice. Route each
edge to its pair file directly during the single emit pass via a shared
RelPairRouter, eliminating the monolithic write + re-read + per-edge regex.

The router applies the SAME getNodeLabel + validTables filter as the legacy
splitRelCsvByLabelPair, which is retained as a differential oracle. A new
differential test asserts the direct-emit per-pair files are byte-for-byte
identical to the oracle's, with identical skip/total accounting. The prof
line (U1) drops its rel-split stage (routing now folds into csv-emit).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(lbug): skip per-row microtask tick in BufferedCSVWriter (#2203 U3)

addRow awaited an already-resolved promise on every buffered row, scheduling
a microtask per node even when nothing flushed (millions at scale). It now
returns a promise ONLY when it flushes; the node-emit loop awaits once per
iteration after the switch. Flush/drain semantics are unchanged, so
backpressure on the rows that actually write is preserved and the emitted
CSV bytes are byte-identical (covered by the determinism + differential tests).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* bench(lbug): emit throughput + byte-identity gate for the persistence path (#2203 U4)

Build-free bench (bench/emit-persistence/measure.mjs) times streamAllCSVsToDisk
on a synthetic graph at two scales and gates: (1) an order-independent sha256
fingerprint over every emitted CSV line — the byte-identity guard for the U2/U3
emit optimisations — and (2) a scaling-ratio budget catching an O(n^2) emit
re-regression. Wired into ci-tests.yml alongside the cfg/scope-capture benches.
The LadybugDB COPY half needs a real DB, so its timing stays in PROF_LBUG_LOAD
+ the integration round-trip tests (documented in the bench README, with the
deferred COPY-parallelism follow-up).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(review): apply autofix feedback (#2203)

- P1: router backpressure drain-await rejected with a generic AbortError,
  masking the real EMFILE/disk-full error. Expose RelPairRouter.lastError and
  rethrow it in the emit catch — mirrors the oracle's throw streamError ?? err.
- P1: cover RelPairRouter error + backpressure + teardown paths with a new
  unit test (test/unit/rel-pair-routing.test.ts) using an injected mock stream.
- P2: wrap streamAllCSVsToDisk body in try/finally so the setMaxListeners bump
  is always restored (the U2 rel-routing throw path could leak it).
- P2: dedup WriteStreamFactory — re-export the canonical type from
  rel-pair-routing instead of a second identical declaration.
- P2: annotate splitRelCsvByLabelPair @internal as the retained differential
  oracle so a future dead-code sweep doesn't delete the byte-identity guard.
- P3: differential test now covers the proc_ prefix + clears
  GITNEXUS_SORT_GRAPH_OUTPUT to prevent env-leak desync.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(lbug): scope byte-identity to quote-free ids + lock the quote-in-id divergence (#2215 review)

The 'byte-identical' claim was unconditional, but the router derives labels from
the raw id while the retained splitRelCsvByLabelPair oracle re-derives them via a
regex over the escaped row — so for an id containing a double-quote they diverge
(the router is the more-correct path). Soften the wording in rel-pair-routing.ts,
the bench README, and the differential-test comment to document the exception,
and add a differential test asserting the intended divergence (router routes the
quote-in-id edge; oracle drops it) so a future change can't silently revert to
the buggy regex semantics.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* bench(lbug): per-file fingerprint so the gate catches pair-file mis-routing (#2215 review)

fingerprintEmit flattened every line of every per-pair file into one array,
sorted globally, and hashed — losing file boundaries, so a row routed to the
WRONG pair file produced an identical fingerprint. Hash a per-file digest
(filename + sha256(file bytes)) and combine the sorted entry list, so mis-routing
(and within-file row reordering) now changes the fingerprint. Baseline
regenerated; the new scheme yields a different hash on byte-identical emit,
confirming it is sensitive to file structure the old flatten ignored.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* bench(lbug): add absolute large-scale wall-time backstop to the emit gate (#2215 review)

The scaling-ratio gate only compares large/small, so a uniform Nx slowdown at
both scales passes with ratio ~1.0. Add an opt-in max_ms_large ceiling (1000ms
vs observed ~200ms — generous, host-noise-tolerant) that --check enforces
alongside the ratio, catching a gross absolute regression the ratio misses.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(lbug): cover the sorted-output path in the byte-identity differential (#2215 review)

The differential test only exercised the default insertion-order emit path. Add
a case under GITNEXUS_SORT_GRAPH_OUTPUT=1 that feeds the oracle the same
id-sorted order orderedRelationships() uses and asserts per-pair byte-identity,
so within-pair row reordering on the sorted path can't slip past the gate.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(lbug): cover the invalid-TO-label skip branch (#2215 review)

Only an invalid-FROM label was exercised; the validTables skip is an OR over
both endpoints, so the invalid-TO branch was untested (an inverted && would
have slipped through). Add a valid-FROM/invalid-TO edge to the differential
test and the router unit test, asserting it's skipped identically by router and
oracle.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(lbug): exercise the BufferedCSVWriter FLUSH_EVERY boundary in vitest (#2215 review)

The U3 addRow change (returns a flush promise only on flush; undefined when
buffered) and the loop's `if (pending) await pending` were only crossed by the
bench, never vitest (all fixtures are <500 nodes). Add a 600-node graph through
streamAllCSVsToDisk asserting all rows land exactly once across the 500-row
flush boundary — no drops, dups, or corruption.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(lbug): drop redundant step cast in buildRelRow (#2215 review)

GraphRelationship.step is already typed number?, so (rel as { step?: number }).step
was a no-op structural cast that obscured the shared-type coupling. Use rel.step
directly. Byte-identical — bench fingerprint unchanged, differential test green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(lbug): make the unknown-label node drop explicit (#2215 review)

With the U3 `let pending` switch idiom, a node whose label matches neither
codeWriterMap nor multiLangWriters left `pending` undefined and was silently
dropped — a footgun for a future node type. Add an explicit else with a comment
documenting that unknown labels are intentionally not persisted and that a new
type must be wired into a writer map. No behavior change (byte-identity + tests
unchanged).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(lbug): drop the unused WriteStreamFactory re-export (#2215 review)

The type was re-exported from lbug-adapter 'to preserve this module's surface,'
but no external code imports it by name from here (the only test reference is a
comment). Keep the import from rel-pair-routing.ts (its canonical home, still
used by splitRelCsvByLabelPair's signature) and drop the dead re-export.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-15 19:40:59 +01:00
Gergő Magyar
6932e7a9fd
feat(cfg): PDG/CFG visitors for all supported languages (#2195) (#2197)
* test(cfg): validate cfg/visitors literals + drop 3 dead TS node types

Extend the grammar-literal CI gate (test/helpers/literal-collectors.ts)
to scan cfg/visitors/*.ts, mapping each visitor file to its grammar via
the existing basename rule (c-cpp -> C/C++, csharp -> C#, java -> Java,
go -> Go, typescript -> TS). Closes the gap where the gate never
validated CFG visitor node-type literals -- the prerequisite for adding
C-family visitors safely (#2195 U1).

The newly-scanned TS visitor surfaced 3 dead literals absent from every
grammar it serves (typescript/javascript/tsx all = 0): for_of_statement
(for-of parses as for_in_statement), async_function_declaration and
async_arrow_function (async functions are function_declaration /
arrow_function + an async child). Removed them; behavior-preserving --
the cases never matched, bench --check fingerprints unchanged, TS
visitor unit tests green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(cfg): language-agnostic CFG unit-test harness (#2195 U1)

Extract the grammar-agnostic engine from ts-cfg-harness into
makeCfgHarness(grammar, visitor, filePath) at test/helpers/cfg-harness.ts.
Function discovery delegates to visitor.isFunction, so the harness carries
no language-specific node-type knowledge -- each C-family visitor's unit
tests can drive the real worker-side builder against real source.

ts-cfg-harness becomes a thin TS binding re-exporting the same
parse/collectFunctions/cfgOf/cfgsOf (behavior-preserving: all 5 existing
consumers -- taint propagate/model-match/summary-harvest/taint-emit + cfg
harvest -- pass unchanged, 223 tests green). New harness.test.ts proves
TS-faithfulness and isFunction-delegation via a stub visitor.

The bench parameterization (measure.mjs) is sequenced into U7, where the
first C-family scaling scenario makes the {grammar, visitorFactory} seam
validatable against a real non-TS language.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): C and C++ CFG visitor + def/use harvest (#2195 U2)

Add createCCfgVisitor/createCppCfgVisitor over a shared CCfgWalk core.
Grammar introspection confirmed tree-sitter-c and tree-sitter-cpp share
every control-flow node type/field, so CppCfgWalk extends CCfgWalk with
only the C++-only nodes (try/catch/throw/for_range_loop/lambda) via a
visitExtra hook -- no language conditionals (AGENTS no-language-naming).
Wire both into c-cpp.ts providers.

Harvest (c-cpp-harvest.ts): two-phase binding table + per-statement
defs/uses/mayDefs (no sites[] yet -- U6). Edge kinds match the TS
contract; functionStartColumn populated; non-terminating loops (for(;;),
while(1)) emit the structural exit-escape edge so EXIT stays
reverse-reachable and CDG is not silently skipped -- verified against the
production post-dominator + control-dependence solvers (for(;;) -> 3 CDG
edges). buildFunctionCfg returns undefined rather than throwing.

23 real-parser regression tests; grammar-literal gate green (literals
validated against both grammars). Documented gaps: C++ RAII destructors,
setjmp/longjmp, computed goto (route to EXIT + warn).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): C# CFG visitor + def/use harvest (#2195 U3)

Add createCsharpCfgVisitor + csharp-harvest over the shared CfgBuilder /
ControlFlowContext, modeling the C# statement taxonomy: if/else,
for/foreach/while/do, switch_section (+ switch_expression arms),
try/catch/catch_filter/finally, using + lock (deterministic finalizers --
dispose/release runs on normal AND exception exit, finally-* completion
edges on crossing jumps), goto/labeled, yield (surface only), return/
throw/break/continue. Wire into csharpProvider.

Every literal validated against tree-sitter-c-sharp via the introspection
probe (record_declaration, no else_clause, switch_section, positional
access where no field exists). Edge kinds match the contract;
functionStartColumn populated; while(true) keeps EXIT reverse-reachable
(production CDG probe: 3 edges). buildFunctionCfg returns undefined
rather than throwing.

34 real-parser regression tests; grammar-literal gate green; no
regression (cfg unit dir 256/256, tsc clean). Documented gaps: yield
iterator state machine, goto case/default, async suspension points.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): Java CFG visitor + def/use harvest (#2195 U4)

Add createJavaCfgVisitor + java-harvest over the shared CfgBuilder /
ControlFlowContext: if/else, classic for, enhanced-for, while, do-while,
classic-vs-arrow switch (switch_block_statement_group fallthrough vs
switch_rule no-fallthrough), try/catch/finally + try-with-resources
(auto-close synthesized as a finalizer, closes on normal AND exception
exit) + synchronized (monitor-release finalizer), labeled break/continue
to the labeled frame, yield, return/throw/break/continue. Wire into
javaProvider.

Every literal validated against tree-sitter-java via the probe
(switch_expression covers both switch forms, generic_type, line_comment,
for init field). Edge kinds match the contract; functionStartColumn
populated; while(true)/for(;;) keep EXIT reverse-reachable (production
CDG probe: 3 edges; hazard fixture: 34 CDG edges). buildFunctionCfg
returns undefined rather than throwing.

43 real-parser regression tests; grammar-literal gate green; no
regression (cfg unit suite 304, tsc clean). Documented gaps: switch-as-
expression-value inline, yield state machine, async/field-write defs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): Go CFG visitor + def/use harvest (#2195 U5)

Add createGoCfgVisitor + go-harvest, the highest-divergence target:
for_statement (all four shapes -- for_clause C-style, while-style,
range_clause, bare for{}), expression/type switch (no implicit
fallthrough) + explicit fallthrough_statement, select_statement, defer
(LIFO finalizer legs at function exit), go (call is straight-line; the
closure body is its own CFG via isFunction), labeled break/continue/goto,
multiple-return assigns (a, b := f() defines each LHS). Wire into
goProvider.

CRITICAL (review A2): every non-terminating shape -- for{}, for cond{},
select{} with no default -- emits a structural exit-escape edge so EXIT
stays reverse-reachable and the production CDG is not silently skipped.
Verified: for{} -> CDG=3, select{} -> CDG=1, for-range -> CDG=2, all
exitReachable=true.

Every literal validated against tree-sitter-go via the probe. 32
real-parser regression tests; grammar-literal gate green; no regression
(186 across all 5 visitors + gate, full cfg unit 331, tsc clean).
Documented gaps: panic/recover unwind, goroutine happens-before.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): call-site sites[] taint substrate for C-family (#2195 U6)

Extend the C/C++/C#/Java/Go harvests with the call-site sites[] taint
substrate (SiteRecord/SiteArgOccurrence), mirroring the TS shape so the
shared taint matcher consumes all languages uniformly. Extract the
grammar-agnostic site machinery into cfg/visitors/call-site-harvest.ts
(CallSiteFactAccumulator -- names no language); each harvest adds only its
per-grammar visitCall/walkChain over its call node (C/C++ call_expression,
C# invocation_expression, Java method_invocation, Go call_expression).

INERT BY DESIGN: no C-family taint model exists (registerBuiltinTaintModels
is TS/JS only), so getSourceSinkConfig returns undefined for these
languages and the harvested sites produce ZERO TAINTED edges -- the
positive source->sink->TAINTED path is deferred with the model authoring.

sites emitted only when non-empty; facts-only attachment, block/edge
topology unchanged (pre-existing topology + def/use tests byte-identical).
23 new substrate tests; 574 green across the cfg/taint/emit suites; gate
green; tsc clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(cfg): worker-mode PDG integration + bench parameterization (#2195 U7)

Prove the five C-family visitors build PDG through the REAL worker
pipeline. pipeline-pdg.test.ts: per-language (C/C++/C#/Java/Go) temp repo
run with pdg:true asserts BasicBlock+CFG+REACHING_DEF+CDG all > 0 (CDG>0
proves EXIT stays reverse-reachable end-to-end through the worker, incl.
each fixture's non-terminating loop/select); a paired run with pdg off
asserts == 0, the two flag-off graphs byte-identical (R3), no PDG types
leak, pinned by a golden snapshot. Counts e.g. Go 151 BB / 56 CDG.

Parameterize bench/cfg/measure.mjs by a per-language LANGS registry
resolved generically via getLanguageGrammar + getProvider(X).cfgVisitor
(no static import table). Default TS byte-identical -- all 6 TS
fingerprints unchanged under --check; taint-dense stays TS-only
(TS_JS_TAINT_MODEL never runs against model-less C-family CFGs). Add a
go:branchy scenario+baseline (namespaced) -- its fingerprint shape
(32 blocks/46 edges) matches TS branchy, cross-validating the Go visitor.

15 pipeline tests + bench --check PASS (7 scenarios); 354 unit cfg green;
dist rebuilt clean. Absorbs the bench parameterization deferred from U1.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): Python CFG visitor + def/use harvest (#2195 U8)

Add createPythonCfgVisitor + python-harvest -- the most structurally
divergent target (indentation blocks, elif, for/while-else, with, try/
except/except-group/else/finally, match/case, comprehensions, walrus),
confirming the shared CfgBuilder/ControlFlowContext core carries no
brace-family assumptions. for/while else-clause sits on the normal-
completion edge (not break); with modeled as try/finally dispose; match
has no fallthrough. Wire into pythonProvider.

Every literal validated against tree-sitter-python via the probe.
while True: keeps EXIT reverse-reachable (production CDG probe: 3 edges;
fixture: 42 CDG edges). 37 real-parser tests; gate green; no regression
(cfg unit 391, tsc clean). Gaps: async/generator suspension, comprehension
scope over-approximation. No sites[] (taint substrate, separate).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): PHP CFG visitor + def/use harvest (#2195 U9)

Add createPhpCfgVisitor + php-harvest: if/elseif/else (+ alt colon
syntax), for/foreach/while/do-while, switch (fallthrough) + match (no
fallthrough), try/catch/finally, break N/continue N (N-th enclosing
loop), goto, return/throw. Wire into phpProvider.

Every literal validated against tree-sitter-php (php_only) via the probe
(for_statement initialize/condition/update; throw_expression not
throw_statement; break/continue integer child). while(true) keeps EXIT
reverse-reachable (production CDG probe: 3 edges; break 2 escapes the
outer loop). 35 real-parser tests.

Also repoint worker-roundtrip's "non-CFG language" gate test from Python
(which now has a cfgVisitor) to COBOL (the permanent non-goal of the
rollout) -- a stale assertion the Python commit invalidated. Full
in-process sweep green (452 across 18 files). Gaps: match inline value,
goto plain-block.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): Ruby CFG visitor + def/use harvest (#2195 U10)

Add createRubyCfgVisitor + ruby-harvest: if/unless/elsif/else +
statement-modifier forms (x if c, x while c), while/until/for (until
inverts the sense), case/when + case/in (pattern, no fallthrough),
begin/rescue/else/ensure (ensure=finally, rescue=catch) + retry
(loop-back into begin), return/break/next/redo, blocks/lambdas as their
own closure CFGs. Wire into rubyProvider.

Every literal validated against tree-sitter-ruby via the probe (case vs
case_match, modifier nodes, typed rescue/ensure children). loop do /
while true keep EXIT reverse-reachable (production CDG probe: 3 edges).
34 real-parser tests; comprehensive sweep green (486). Gaps: yield,
expression-position if/case/begin inline, ivar/gvar non-local defs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): Rust CFG visitor + def/use harvest (#2195 U11)

Add createRustCfgVisitor + rust-harvest for the expression-oriented Rust:
if/else + if-let, loop (infinite -- structural escape edge), while/
while-let/for, match (no fallthrough) + guards, labeled break/continue
('outer), break-with-value, ? operator (try_expression) as an
early-return throw edge to EXIT, let-else (diverging else). visitLet
handles control-flow in value position (let x = loop/if/match). Wire into
rustProvider.

Every literal validated against tree-sitter-rust via the probe (label is
a named child not a field; line_comment; _ pattern). loop {} keeps EXIT
reverse-reachable (production CDG probe: 3 edges). 33 real-parser tests;
comprehensive sweep green (519). Gaps: panic, async/.await, macro bodies.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): Swift CFG visitor + def/use harvest (#2195 U12)

Add createSwiftCfgVisitor + swift-harvest (vendored tree-sitter-swift via
requireVendoredGrammar): if/else + optional binding (if let), guard...else
(diverging early exit), for-in/while/repeat-while (bottom-test), switch
(no implicit fallthrough; explicit fallthrough keyword; where guards),
do/catch + try/try?/try!, defer (LIFO finalizer at scope exit), labeled
break/continue, control_transfer_statement (one node for break/continue/
return/throw). Wire into swiftProvider.

Every literal validated against the vendored grammar via the probe (no
block node; if-let folds into condition+bound_identifier; defer parses as
a call_expression with trailing closure). while true keeps EXIT
reverse-reachable (production CDG probe: 3 edges). 24 real-parser tests;
comprehensive sweep green (543). Gaps: computed properties, defer
block-scope approx, fatalError traps.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): Kotlin CFG visitor + def/use harvest (#2195 U13)

Add createKotlinCfgVisitor + kotlin-harvest (vendored tree-sitter-kotlin):
if/else, when (subject + subjectless, no fallthrough), for/while/do-while,
try/catch/finally, jump_expression (return/return@/break/break@/continue/
continue@/throw), labeled loops, control_structure_body unwrapping,
expression-body functions. The grammar is field-less for control flow, so
the visitor navigates by child type+position. Wire into kotlinProvider.

Every literal validated against the vendored grammar via the probe
(line_comment/multiline_comment, not comment). while (true) keeps EXIT
reverse-reachable (production CDG probe: 3 edges; worker-mode fixture:
BB=82, CDG=41). 28 real-parser tests; comprehensive sweep green (571).
Gaps: value-position if/when/try inline, inline-fun non-local return,
getters/setters.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): Dart CFG visitor + def/use harvest (#2195 U14)

Add createDartCfgVisitor + dart-harvest (vendored tree-sitter-dart):
if/else, C-for/for-in/while/do-while, switch (empty-case fallthrough +
explicit continue-label) + switch_expression, try/on/catch/finally +
rethrow + assert (throw edges), return/break/continue/throw, labeled
loops, arrow bodies, closures. Dart splits a function into sibling
signature + function_body nodes, so the body (or function_expression) is
the CFG-bearing node. Wire into dartProvider.

Every literal validated against the vendored grammar via the probe (only
constant_pattern exists; removed speculative relational/logical pattern
names). while (true) keeps EXIT reverse-reachable (production CDG probe:
3 edges). 34 real-parser tests; comprehensive sweep green (605). Gaps:
labeled-loop grammar quirk (read via ERROR sibling), async straight-line,
value-position if/switch inline.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): Vue (reuse TS visitor) + worker-mode proof for all langs (#2195 U15)

Vue SFC <script> blocks are extracted and parsed with the TS grammar
(parse-worker languageMap[Vue] = TypeScript.typescript), so wire
vueProvider.cfgVisitor = createTypeScriptCfgVisitor() -- pure reuse, no
Vue-specific visitor. vue-visitor.test.ts replicates the worker path
(extractVueScript -> TS parse -> CFG) and confirms branch edges + EXIT
reverse-reachable + CDG>0.

Extend pipeline-pdg.test.ts with a worker-mode block covering all eight
remaining languages (Python/PHP/Ruby/Rust/Swift/Kotlin/Dart/Vue): per-
language temp repo, real worker pool, BasicBlock+CFG+REACHING_DEF+CDG all
> 0 with --pdg (CDG>0 proves EXIT reverse-reachable end-to-end through the
worker despite each fixture's non-terminating loop), == 0 without. Counts
e.g. Ruby 122 BB/45 CDG, Vue 49 BB/11 CDG. 30 pipeline tests green.

COBOL: documented as the deliberate PDG non-goal (no grammar, exotic
PERFORM/GO-TO control flow) in cobol.ts + the worker-roundtrip gate.

This completes PDG language coverage: every supported language except
COBOL now builds CFG/REACHING_DEF/CDG under --pdg.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): surface skippedUnsoundFunctions in per-language stats (#2195 U2)

emitFileCdg computes skippedUnsoundFunctions (functions whose CDG is
withheld because EXIT isn't reverse-reachable from all blocks) but run.ts
dropped it on the floor — only cdgEdges/cdgDropped were aggregated. Add
the aggregation + a stats-line segment so CDG coverage gaps are an
explicit signal, not silent. Establishes the baseline skip count that
makes the U1 synthetic-escape pass's effect (the drop to genuine
anomalies only) measurable.

Additive; no emit-logic change. The emit-side field is covered by
cfg-emit.test.ts (asserts skippedUnsoundFunctions===1 + the warn on a
disconnected-block CFG); the run.ts aggregation is a thin pass-through.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): synthetic-escape pass restores CDG for exit-unreachable cycles (#2195 U1)

Unconditional goto-cycles (C/C++/C#/Go) wire a backward seq edge with no
structural exit-escape edge, so EXIT becomes non-reverse-reachable and
emitFileCdg silently skipped ALL control-dependence for the function.

New cfg/synthetic-escape.ts: a pure deterministic SCC routine (iterative
Tarjan, sorted adjacency) + augmentForPostDom(cfg). No-op when EXIT is
already reverse-reachable (terminating fns + visitor-escaped loops are
byte-identical — returns the same object). Otherwise it batch-bridges
every exit-less SCC by adding an ANALYSIS-ONLY escape edge from the SCC's
controlling block (highest out-degree branch; lowest-index tie-break) to
EXIT, on a shallow-cloned FunctionCfg — never mutating persisted
cfg.edges. emitFileCdg threads that augmented view through BOTH
isExitReachableFromAllBlocks AND computeControlDependence (the Ferrante
walk re-reads cfg.edges, so a tree-only augmentation would be wrong).

Precision (anti-masking): only a trapped region containing a control
point (>=2-successor block) is bridged — a branch-less trapped region
carries no recoverable control-dependence and is indistinguishable from a
genuine construction anomaly, so it stays on the skip path (the existing
disconnected-block skip test still skips, skippedUnsoundFunctions===1). A
residual non-cycle dangling block is never bridged.

repro `void handler(int a){ start: if(a>0){work();} goto start; }`:
before exitReachable=false/CDG=0 → after one synthetic 2->1 edge,
exitReachable=true, exact CDG = {2->2:T,2->2:F,2->3:T,2->4:T,2->4:F}
(pinned exactly, not CDG>0 — catches a wrong representative). AC2 property
test extended to the augmented graph; per-language goto-cycle regressions
(C/C++/C#/Go). 199 cfg tests green; bench --check fingerprints unchanged
(analysis-only, zero persisted drift).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(cfg): isolate the non-terminating-loop hazard in worker CDG asserts (#2195 U3)

The pipeline-pdg worker-mode blocks asserted a whole-fixture cdg>0
aggregate (satisfied by any branching fn) while the comment claimed it
proved the non-terminating-loop EXIT-reachability end-to-end. Add a per-
language `hazard` marker + isolate the assertion: locate the hazard
function's BasicBlocks by its anchor and assert >=1 CDG edge is sourced
within it (a marker mutation now fails the test — non-vacuous). C# keeps
the aggregate (its fixture has no infinite loop). Comments corrected.

Switch the 7 visitor unit tests (java/csharp/dart/kotlin/php/swift/c-cpp)
from the local exitReachableFromAll CFG-shape helper to the production
isExitReachableFromAllBlocks + computeControlDependence on the hazard
function, matching go/python/ruby/rust/vue. 241 unit + 30 pipeline green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(cfg): gate vendored-grammar worker assertions on isLanguageAvailable (#2195 U4)

The Swift/Kotlin/Dart worker-mode pipeline-pdg cases require a vendored
grammar prebuild that may be absent on a CI platform — they'd go red
there. Mark those three REMAINING_LANGS entries `vendored` and gate both
the --pdg-on and --pdg-off `it`s on isLanguageAvailable(SupportedLanguages
[lang]) → it.skip when the grammar can't load. Installed-grammar
languages stay unconditional. Grammars present here, so all 30 run green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(cfg): remove dead useCount() from swift + rust harvests (#2195 U5)

useCount() was declared on the local FactAccumulator in swift-harvest.ts
and rust-harvest.ts but never called (a copy-paste artifact; ruby's copy
IS used in an emit guard, so it stays). Pure deletion — the swift/rust
visitor suites stay green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(cfg): standardize harvester API table()->bindingTable() (#2195 U9)

The binding-table accessor was named table() in the C/C++/C#/Go harvests
but bindingTable() in the other 7. Rename the 4 (definitions + their
visitor call sites) to the majority name bindingTable(). Pure rename; the
4 visitor suites stay green and tsc confirms no call site was missed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(cfg): consolidate scope-tree substrate into ScopeTreeHarvester (#2195 U6)

The Go/Java/C#/C-C++ def/use harvesters each carried a byte-identical copy
of the lexical scope-tree machinery (Scope record, two-phase resolution
cache, openScope/nearestScopeOf/resolve/def/use/conditional/bindingTable,
~270 lines total). Extract it into an abstract ScopeTreeHarvester base; the
four harvesters now extend it and supply only their genuine per-language
variation (the prescan switch, plus Go's _-blank-identifier overrides of
declare/def/use). Net -422 lines. Mechanical and byte-equivalent: cfg unit
suite 613 passed, bench --check fingerprints unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(cfg): consolidate no-site def/use accumulator into DefUseAccumulator (#2195 U7)

The Kotlin/Python/Ruby/Rust/Dart/Swift harvesters each carried a
byte-identical copy of the no-site def/use accumulator (~270 lines total;
only Ruby's adds the live useCount() emit-guard helper). Extract it as an
exported DefUseAccumulator beside CallSiteFactAccumulator in
call-site-harvest.ts (the PR's own model for the with-site superset); the six
harvesters import it under their existing local FactAccumulator name. Pure
byte-equivalent move, no logic change: cfg unit suite 613 passed, tsc clean,
bench --check fingerprints unchanged (TS/Go paths untouched).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(cfg): consolidate copied visitor-test helpers into cfg-harness (#2195 U8)

The 13 *-visitor.test.ts files each copied a byte-identical set of CFG-shape
helpers (edgeKinds/block/reaches/reachable/bindingIdx/allSites/hasAnySites,
~380 lines total). Export them once from test/helpers/cfg-harness.ts and import
per file (only the subset each references). Also drop each file's local
exitReachableFromAll — a re-implementation of the production
isExitReachableFromAllBlocks (semantically identical: false iff some
entry-reachable non-EXIT block can't reach EXIT) — and point its live call
sites at the already-imported production function. Pure test-only mechanical
move, behavior-preserving: tsc clean, test/unit/cfg/ 613 passed unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(cfg): pin *-harvest.ts literals to their own grammar in the gate (#2195 U10)

The grammar-literal validation gate scans cfg/visitors/, but a <lang>-harvest.ts
basename was not in BASENAME_LANGS, so fileLanguages() fell it through to the
weak ALL_LANGS valid-if-any bucket — a node-type literal dead in its own grammar
but valid in some other grammar would pass undetected. Strip the -harvest suffix
and reuse the visitor basename map so go-harvest -> Go, c-cpp-harvest -> C+C++,
typescript-harvest -> TS, etc. The two language-agnostic harvesters
(call-site-harvest, scope-tree-harvest) name no grammar and stay valid-if-any.
Also corrects the now-inaccurate mode2Files comment. Adds a fileLanguages unit
test; the existing gate stays green (no harvest file has a dead literal), and a
scratch probe confirmed a bogus go-harvest literal is now caught.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): defensive per-statement cap on harvested taint sites (#2195 U11)

A statement's harvested sites[] had no explicit bound — a pathological or
machine-generated statement (hundreds of nested calls) could grow it without
limit. Add DEFAULT_PDG_MAX_SITES_PER_STATEMENT (512, mirroring the PDG edge/fact
cap style): openCallSite/addMemberRead check-before-push and stop at the cap,
keeping the first 512 sites fully intact and setting an observable
sitesTruncated flag. A cap-dropped openCallSite returns a -1 sentinel that
pushFrame/setSite*/the occurrence fan-out all tolerate (no dangling parent/via,
no clobber of kept sites). Generous enough that no real statement is affected:
bench --check fingerprints unchanged, cfg unit suite 617 passed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* ci(codeql): exclude nested test fixtures from the CodeQL gate (#2195)

The CodeQL results gate failed on test/integration/cfg/fixtures/python-hazards.py
('total' may be used before init, unused vars) — but that file is an intentional
CFG/PDG hazard fixture, exactly the synthetic broken-code the existing
'**/test/fixtures/**' exclusion is meant to skip. That glob does not match the
deeper test/integration/cfg/fixtures/ path, so the hazard fixtures leaked into
the scan. Add '**/test/**/fixtures/**' to cover fixtures nested anywhere under a
test tree. Analyze (python) and Analyze (javascript-typescript) both already pass
— production code is clean; this only silences fixture noise.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* style(cfg): apply prettier + drop unused imports across the PDG files (#2195)

The merge of main into this branch pulled in the stricter quality gates
(prettier --check . and eslint .), which surfaced pre-existing formatting in the
PDG/CFG rollout (line-width wrapping across the visitor + harvest files, bench,
tests) plus 9 no-unused-imports errors. Mechanical autofix only — npm run
format + lint:fix equivalent, scoped to gitnexus/: removes unused FunctionCfg/
SiteRecord type imports left by the U8 helper consolidation and stale
FinalizerFrame imports in python.ts/ruby.ts. No behavior change: tsc clean, cfg
unit suite 617 passed, eslint 0 errors. (gitnexus-web class-order noise is a
local tailwind-plugin artifact CI does not flag — left untouched.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): harvest C++ structured-binding defs (auto [a,b]=e) (#2195)

The C++ def/use harvester only recorded a def when an init_declarator's
declarator was a plain identifier, so a structured binding (auto [a,b] = mk(),
incl. the auto& reference form whose binding sits under a reference_declarator)
declared only the first name in phase 1 and emitted ZERO defs in phase 2 — a,b
were walked as spurious uses and later use(a)/use(b) resolved to a synthetic
module binding, silently corrupting REACHING_DEF/taint for an idiomatic C++17
shape. Unwrap the structured_binding_declarator in both phases and def every
identifier leaf; result-of-initializer flows to the whole list. Inert for C
(no structured bindings). Characterization tests added (plain + reference form).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): model C++ co_return as a return terminator to EXIT (#2195)

co_return_statement was neither in CPP_CONTROL_FLOW_TYPES nor dispatched, so a
coroutine's co_return coalesced into a straight-line block and emitted a
spurious seq fallthrough to the following statement instead of an edge to EXIT
— statements after co_return looked reachable and the terminator edge was
missing, corrupting CFG/CDG for coroutines. Add the node type to the C++
control-flow set and dispatch it through visitReturn (block -> EXIT 'return',
no fallthrough). C path untouched; co_await/co_yield remain plain expressions.
Characterization test added; c-cpp suite + grammar-literal gate green, bench
--check unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): harvest C# out-var and deconstruction-declaration defs (#2195)

Two idiomatic C# write shapes recorded ZERO defs, silently breaking
REACHING_DEF/taint:

- out-var (G(out var n) / G(out int n)) parses as a declaration_expression;
  it was neither declared (phase 1) nor def'd (phase 2), so n resolved to a
  synthetic module binding and the callee-written value had no reaching def.
- deconstruction declaration (var (a, b) = T()) has a variable_declarator whose
  name slot is a tuple_pattern (null name field), so declareVariableDeclaration
  + the variable_declaration walk skipped it entirely (only the assignment form
  (a,b)=T() was handled). Both a and b were dropped.

Declare + def the declaration_expression's identifier (must-def: out params are
definitely-assigned), and route a null-name variable_declarator through the
tuple_pattern via the existing declareForeachTarget/defTupleTargets helpers.
Characterization tests added; csharp suite 42 passed, grammar gate + bench
--check green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): put embedded-script CFGs in file coordinates via lineOffset (#2195)

A Vue SFC <script> block parses at row 0 but lives at lineOffset in the .vue
file. Every other worker-emitted graph node adds lineOffset to reach file
coordinates, but collectFunctionCfgs built FunctionCfgs from the extracted
script's raw rows and never offset them. Two consequences for .vue files:
- inter-procedural taint silently resolved NOTHING — the summary-harvest join
  keys graph Function/Method nodes by their (offset) startLine but looked up the
  CFG's (unoffset) functionStartLine, missing by exactly lineOffset, so no
  FunctionSummary was ever produced;
- persisted BasicBlock startLine/endLine (and the id's functionStartLine
  segment) pointed at the wrong .vue line, breaking source mapping.

Thread lineOffset into collectFunctionCfgs and shift every CFG source-line field
(functionStartLine/End, block start/end, statement + non-synthetic binding
lines) into file coordinates at the one production chokepoint. A 0 offset
returns the CFG unchanged, so .ts/.js/etc. stay byte-identical (bench --check
fingerprints unchanged; worker-roundtrip + pipeline-pdg green). Unit tests for
the shift + the 0-offset no-op added.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): surface CDG soundness skips at warn, not just debug (#2195)

skippedUnsoundFunctions (a function whose EXIT is not reverse-reachable from
all blocks, so control dependence is withheld) was only reported inside the
per-language logger.debug stats line — while the taint/RD coverage-gap and
cap-drop counts surface unconditionally at warn. A language that systematically
trapped EXIT (an unmodeled non-terminating / multi-terminal shape the
synthetic-escape pass can't bridge) would silently lose all CDG. Add a parallel
unconditional warn (R8) alongside the R4 taint-gap warn. Observability only —
no graph change; emit-layer skip counting stays covered by cfg-emit's
skippedUnsoundFunctions test.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): harvest Kotlin x++/--x as a def (#2195)

The Kotlin harvester had no postfix_expression/prefix_expression case, so an
increment/decrement fell to the default descent and recorded its operand as a
use only — never a def. Every sibling harvester (Java/C#/C++/Dart/TS/PHP) models
inc/dec, so a Kotlin counting loop (while/for using i++) silently dropped the
loop-carried reaching-def of the counter. Add the case: def AND use the operand
when it is a plain simple_identifier and the operator is ++/-- (other pre/postfix
forms — -x, !x, x!!, x? — stay pure reads, byte-identical to the old descent).
Characterization tests for postfix + prefix added; kotlin suite 30 passed,
grammar gate + bench --check green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): harvest Go select channel-receive binding as a def (#2195)

walkValue had no receive_statement case, so a select receive (case v := <-ch:)
fell to the default descent: v was recorded as a USE of an uninitialized var
and the channel-sourced definition was invisible to REACHING_DEF/taint —
channels are a primary taint source in Go. Add the case mirroring
short_var_declaration: def each left identifier, use the <-ch right, attach
resultDefs for the := short form. prescan already declared the binding; this
completes the phase-2 fact. go:branchy bench fingerprint unchanged; go suite
40 passed, grammar gate green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): harvest all names of a Dart multi-variable declaration (#2195)

`var a = 1, b = 2;` is one initialized_variable_definition whose first binding
is the name/value field pair and whose subsequent bindings are trailing
initialized_identifier children. Both prescan (declareInitializedVar) and the
walkValue case read only the name/value fields, so every name after the first
was never declared or def'd — `b` resolved to a synthetic module binding and
its REACHING_DEF/taint flow was lost. Iterate the trailing initialized_identifier
nodes in both phases. (Dart-3 record/list pattern declarations `var (a,b)=pair`
remain a separate follow-up.) dart suite 35 passed, tsc + grammar gate green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): bind Swift switch-case value patterns (case let n) (#2195)

A switch value-binding (case let n where …, case .some(let v)) was never
declared in prescan, so n/v resolved to a synthetic module binding and a body
use(n) did not link to any def — a very common Swift idiom silently lost its
data dependence. Declare the switch_pattern's bindings (prescan, reusing
declarePattern) and emit them as MAY-defs on the dispatch block (a case may not
match) via a new switchPatternFacts, propagated into the case body. swift suite
25 passed, tsc + grammar gate green. (The rare ?? / ternary-arm may-def — Swift
assignment-as-expression — remains a separate follow-up.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): wire Swift multi-catch throw edges to every handler (#2195)

visitDo routed the protected body's throw edge only to handlerEntries[0], so a
do { try r() } catch A {} catch {} left the 2nd..Nth catch handlers UNREACHABLE
from ENTRY — orphaned blocks whose error bindings + def/use facts were stranded
in a dead component (a soundness gap for idiomatic Swift typed multi-catch).
Swift tries the catch clauses in order and the thrown type is unknown at CFG
time, so every protected block may reach ANY clause: edge each protected block
to every handlerEntry. Found by the per-language CFG/CDG verification swarm
(reproduced: 2-catch=1, 3-catch=3 unreachable blocks). swift suite 26 passed,
tsc clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): synthesize a protected block for an empty Kotlin try {} (#2195)

An empty `try {}` body produced zero protected blocks, so visitTry's throw-edge
loop wired nothing to the catch and the try's entry fell through to the finally
— leaving the catch handler block + its error binding orphaned (unreachable from
ENTRY), a malformed CFG with stranded def/use facts. Mirror the existing
empty-`catch` synthesis: when the try body is empty and there is a catch or
finally, synthesize one protected block so the catch handler(s) are wired and
the try entry is the body, not the finally. Found by the per-language CFG
verification swarm. Non-empty try is byte-identical; kotlin suite 31 passed,
tsc clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(cfg): bound the reaching-defs fixpoint with a per-block visit ceiling (#2195)

The per-language verification swarm reproduced, AT PRODUCTION DEFAULTS, a
reaching-defs blow-up: a machine-generated ~2000-line all-loops function (under
DEFAULT_PDG_MAX_FUNCTION_LINES) reaches ~10k basic blocks because loops emit ~5
blocks/line, and the dataflow fixpoint is O(blocks^2.3) on deep loop nests —
measured 62s (C/C++) and 2.05s + 810MB (Go) for ONE function. maxFacts does not
help: the fact count stays LINEAR, so it never fires.

Iterative reaching-defs on a reducible CFG converges in O(loop-nesting-depth)
passes, so a worklist re-visits each block a small multiple of times for real
code. Add a maxBlockVisits ceiling (emit passes blocks.length × 64 — far beyond
any hand-written nesting depth, ~15) that bails when the fixpoint has not
converged. An unconverged fixpoint's in/out sets are not sound, so it returns
NO facts (status 'truncated', like the existing 'overflow' guard) — a per-
function coverage gap, never wrong facts. Real code is byte-identical: full cfg
suites 725 passed, bench --check fingerprints unchanged.

NOTE: computeControlDependence's O(N²) up-walk on deep post-dom chains is the
sibling concern but stays ~13ms in production (bounded by the line cap + the
CDG materialization cap); a CDG work-budget is a documented follow-up.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): raise the parse-worker stack limit for deep CFG recursion (#2195)

The CFG visitors build per-function control-flow graphs by recursive descent
over the tree-sitter AST, so deeply-nested source overflows the worker thread's
call stack (~1.5k nesting levels) — caught per-function (R4 try/catch) but the
function silently gets no PDG. A worker thread's stack is governed by
resourceLimits.stackSizeMb (Node default 4 MB); the main process's
--stack-size=4096 flag does NOT propagate to worker threads (confirmed by prior-
art research on Node worker_threads). Raise it to 16 MB, pushing the overflow
threshold to several-thousand nesting levels — far beyond any hand-written code,
so only machine-generated/obfuscated nesting can still hit it (and that stays a
caught per-function skip, never a crash). Complements a future proactive depth
guard. pipeline-pdg worker tests 30 passed, tsc clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(cfg): compute control dependence as a reverse-CFG dominance frontier (#2195)

The Ferrante §3.1.1 up-walk re-climbed the ipdom chain once per CFG edge,
which is Θ(N²) on a deep post-dom chain (a single branch fanning into a
shared spine took ~7.1s at 16k blocks). Replace it with the reverse-CFG
post-dominance-frontier formulation (Cytron, Ferrante, Rosen, Wegman &
Zadeck 1991): control dependence IS the dominance frontier of the reverse
CFG, computed bottom-up over the post-dom tree (PDF_local from a node's CFG
in-edges + PDF_up from its post-dom-tree children) in O(N + E + output).
LLVM (ReverseIDFCalculator), Joern (CdgPass) and WALA use the same form.

Output is the IDENTICAL deduped/sorted (controller, dependent, label) set:
verified byte-identical across all cfg unit+integration suites, the
cdg-snapshot oracle, and bench --check fingerprints (unchanged). The PDF
unions a label SET per (controller, dependent) pair, preserving the
multi-label rows the old per-row dedup kept on opposite-sense (goto-cycle)
arms. buildArmSenses, labelFor, the final sort and the maxEdges truncation
cap are kept verbatim; the post-order walk is iterative so a chain-deep
post-dom forest cannot overflow the stack.

Adds three regressions: multi-label-per-pair preservation, the literal
self-edge / NO_IPDOM seed guard (a !== x), and a fan-into-chain perf
tripwire (linear vs the former quadratic up-walk).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(cfg): record the reaching-defs WTO no-go decision (#2195)

Weak-topological-order / loop-aware iteration (Bourdoncle 1993) was
evaluated as the fix for the O(blocks²) deep-loop-nest blow-up and
rejected: a faithful WTO solver was 104/104 byte-identical to the RPO
worklist but 0% faster — the cost is inherent dense-set propagation +
lattice merges, not visitation order, and the loop-body-skip shortcut is
unsound on irreducible (goto) CFGs. Document this at the RPO-order site
and the emit.ts revisit-ceiling constant so the shipped blocks×64 bound
reads as the sound backstop it is, with SSA-sparse reaching-defs named as
the deferred real fix. Comment-only; no behavior change.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cfg): proactive visitor nesting-depth guard + observable CFG skips (#2195)

The CFG visitors are recursive-descent with no shared base, so a
pathologically nested function (machine-generated / adversarial) could
overflow the worker's native stack — a nondeterministic RangeError that
escaped to the language-group catch and silently dropped EVERY remaining
file's CFG.

Guard it proactively: CfgBuilder tracks live recursive-descent nesting
depth via enterNesting/exitNesting, called at each visitor's visitBody and
visitSeq choke points (visitBody covers nested control constructs incl.
else-if ladders; visitSeq covers deeply-nested bare blocks). Exceeding
MAX_CFG_NESTING_DEPTH (500, far below the ~1.2k+ native limit and far above
real code's ≤~50) throws a typed, DETERMINISTIC CfgNestingDepthError instead
of waiting for the engine's nondeterministic overflow.

collectFunctionCfgs now isolates the build PER FUNCTION: the depth bail or
any other throw is caught, counted, and skipped — one bad function no longer
loses the whole file's CFGs. CollectedCfgs.skipped widens from a bare number
to reason-counted buckets (tooManyLines / tooDeeplyNested / buildError). The
worker stops discarding that count (parse-worker.ts), aggregates it
per-language onto ParseWorkerResult.cfgSkipped (survives the parse cache via
slim's `...result`), and mergeChunkResults merges + warns per-language so a
CFG coverage gap is observable, not silent.

Behavior-preserving on normal code: the guard never fires below 500 nesting,
so the cfg unit+integration suites (731), the CDG/RD/CFG snapshots and the
bench --check fingerprints are all byte-identical. The worker stackSizeMb
4→16MB bump shipped earlier (de4c43a4).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(cfg): unify the nesting guard behind CfgBuilder.withNesting (#2195)

Tri-review flagged the visitBody/visitSeq guard asymmetry (visitBody used
try/finally; visitSeq placed a bare exitNesting before its tail return). It
is not a bug today — the CfgBuilder is per-function and discarded on a bail,
so a leaked counter is never read — but a future mid-loop return in visitSeq
would silently corrupt the depth count. Replace both hand-paired sites in all
12 visitors with a single `CfgBuilder.withNesting(fn)` helper that enters on
the way in and exits in a finally, so the pair can never drift. Also document
that block-bodied constructs pass through BOTH choke points, so the effective
lexical ceiling is ~MAX_CFG_NESTING_DEPTH/2 (~250).

Behavior-preserving: 733 cfg tests + bench --check fingerprints byte-identical.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): include cfgSkipped in all parse-worker result initializers (#2195)

Tri-review found cfgSkipped omitted from the two reset/fallback
ParseWorkerResult initializers (only the main one carried it). The field is
optional with `?? {}` reads so there is no runtime bug, but the zero-state
initializers should be complete and consistent. Also correct the field's
doc-comment: the per-language merge + warn lives in `dispatchChunkParse`
(alongside skippedLanguages), not `mergeChunkResults` — and, like that
sibling telemetry, the warn fires for freshly-parsed chunks, not on a warm
cache hit.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(cfg): scope the CDG byte-identical claim to the untruncated output (#2195)

Tri-review noted the rewrite's `maxEdges` truncation now trims the SORTED
edge set, whereas the old up-walk broke mid-walk in CFG-edge-iteration order
— so a truncated PREFIX can differ at the cap boundary (only when a single
function exceeds maxEdges; the FULL untruncated set is byte-identical, now
also confirmed by ~1M-case differential fuzz). Clarify the module doc and the
maxEdges param doc: the cap bounds OUTPUT count (peak working set ≈ output in
the DF formulation, not the old pre-dedup spike), and the byte-identical
guarantee is scoped to the untruncated output. Comments only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(cfg): strengthen depth-guard, perf-tripwire and buildError coverage (#2195)

Tri-review test-quality findings:
- cfg-builder: capture the thrown CfgNestingDepthError unconditionally (a
  catch-only assertion silently passes if a future change stops throwing);
  add a withNesting test that the counter balances on the THROW path too.
- control-dependence perf tripwire: assert controller IDENTITY (every edge
  controlled by block 0, distinct dependents in range), not just length, so a
  fast-but-wrong reimplementation can't pass on the M-1 count alone.
- worker-roundtrip: add the missing buildError test — a generic (non-depth)
  buildFunctionCfg throw is caught per function, counted under buildError, and
  does NOT drop the file's sibling CFGs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): model Kotlin value-position when/if as control dependence (#2205)

Idiomatic Kotlin uses `if`/`when` as EXPRESSIONS (`val x = when (k) { … }`,
`return if (c) a else b`, `fun f() = when (k) { … }`), but the visitor only
modeled them as control flow in statement position (the `isStatementPosition`
gate) — value-position branches collapsed into one straight-line block, so
their arms emitted no control dependence. Cross-language PDG validation
(#2195, PR #2197) measured the result: two Kotlin repos at 3% / 6% CDG per
BasicBlock vs 18–76% for every other language (incl. the other
expression-conditional languages, Rust 30% / Swift 24%).

Model value-position `when` (≥2 arms) and `if`/`else` as control flow in the
three dominant carriers — `property_declaration` (rejoin the arms at a
binding continuation carrying the bound name's def), `return`, and the
`fun f() = …` expression body (each arm returns) — mirroring the Rust
visitor's value-position `let` handling. `visitWhen`/`visitIf` are reused
unchanged; `isControlFlow` now routes a value-branch `val`/`var` decl to the
branch handler instead of coalescing it.

Measured: Exposed CDG 3636→5644 (+55%, 6%→9% of BasicBlocks), turbine
67→82 (+22%). Argument-position branches, assignment RHS, and value-position
`try` are left inline — a remaining gap tracked on #2205.

Behavior-preserving for non-Kotlin (bench --check byte-identical; 739 cfg
tests incl. 6 new value-position regressions).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): model Ruby value-position if/case on assignment RHS as control dependence (#2195)

`if`/`case` are expressions in Ruby; as an `assignment` RHS
(`x = if c then a else b end`, `x = case k … end`) the visitor previously
left the arms INLINE in one coalesced block (a gap documented at ruby.ts
§"if/case/begin are EXPRESSIONS"), emitting no control dependence. Model the
RHS branch as control flow and bind the LHS at the rejoin: `assignmentBranch`
detects the carrier, `visitSeq` routes it out of the coalescing path, and
`visitBindBranch` reuses `visitIf`/`visitCase` + a facts-only continuation
carrying the LHS def (new `harvest.assignmentDefFacts`). Mirrors the Kotlin
(#2205) and Rust value-position handling.

Honest impact: SMALL in practice — rack CDG 1269→1303, sinatra 1212→1232
(~+2–3%). `x = if/case` is far rarer in idiomatic Ruby than the Kotlin
analog (Ruby favors ternary / `||=` / guard modifiers), and Ruby's low
CDG/BB is mostly structural (micro-branches `&&`/`||`/`?:`/`&.` excluded by
design, plus many straight-line `.each`/`.map` block CFGs). This closes the
documented gap correctly; it is not a large ratio mover. Explicit
`return if … end` is NOT a carrier — tree-sitter-ruby drops that value; the
idiomatic implicit-last-expression conditional was already modeled.

Behavior-preserving for non-Ruby (bench --check byte-identical; 744 cfg
tests incl. 5 new value-position regressions).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): keep an empty-arm Kotlin when wired to the join (#2195)

An all-empty-arm `when` with an `else` — `when(k){0->{};else->{}}`, idiomatic
`else -> {}` "do nothing" — left the dispatch block with ZERO successors:
empty arms got no `switch-case` edge, and the `else` suppressed the no-match
edge. The dispatch and its join then became orphaned, so
isExitReachableFromAllBlocks returned false and emitFileCdg silently dropped
the ENTIRE function's control dependence (counted cdgSkippedUnsound). The
#2205 value-position fix newly routes `val x = when(…)` / `return when(…)` /
`fun f() = when(…)` through visitWhen, exposing it in those carriers too.

Wire every arm (empty or not) to the join, so the dispatch always has a
successor. Found by the per-language CFG verification swarm. Behavior-
preserving elsewhere (bench --check byte-identical; cfg suite green).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): wire C/C++ throw edges to every catch handler, not just the first (#2195)

`visitTry` edged every protected-region block only to `handlerEntries[0]`, so
in a multi-`catch` (`catch(int e){…} catch(double d){…} catch(...){…}`) the
2nd..Nth handlers were orphaned — unreachable from ENTRY, their catch-param
binding and body control/data flow silently lost. The runtime catch that
matches a thrown type is not statically known, so over-approximate: edge each
protected block to EVERY handler entry (mirrors the Swift multi-catch
handling). Found by the per-language CFG verification swarm; the two existing
exception tests both used a single catch, so it was never exercised.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): keep a bare continue in a Dart switch case — it targets the loop (#2195)

`caseStatements` stripped EVERY `continue_statement` from a case body, but only
a LABELED `continue LABEL;` is a switch fallthrough-spill (handled via
caseContinueLabel). A bare `continue;` targets the ENCLOSING LOOP (valid Dart);
dropping it removed the jump and fabricated a false case → next-statement
fall-through edge (e.g. `case 1: tainted(); continue; default: sink();` made
tainted() flow directly into sink()). Only strip the labeled form; a bare
`continue;` stays in the body and routes to the loop. Found by the per-language
CFG verification swarm.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): harvest Rust match-arm pattern bindings as defs (taint propagation) (#2206)

`visitMatch` visited arm bodies but never harvested the arm PATTERN's bindings,
so `match x { Some(n) => sink(n) }` left `n` with a use and no def/may-def —
taint from the matched subject could not propagate into the arm. Add
`matchArmPatternFacts` (the binders as MAY-defs, since only the matching arm
binds) and attach it to the dispatch block, co-located with the subject's use.
Found by the per-language CFG verification swarm; the match tests asserted
`hasUse` but never `hasDef`.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): harvest Swift guard case / if case enum-pattern bindings as locals (#2206)

`guard case .some(let v) = e` / `if case let .x(n) = e` nest the binder inside a
`pattern` condition child, not a direct `bound_identifier`. Both the declaration
(declareOptionalBindings) and the def-facts (conditionFacts, which ran walkValue
= a USE on the pattern) missed it, so the binding resolved to a synthetic
`@module` global with a use and no def — breaking taint propagation from the
subject. Declare the `pattern` child and def its leaves (may-def when
conditional). Found by the per-language CFG verification swarm.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): treat Dart switch-expression arm writes as may-defs, not hard kills (#2206)

`DartHarvester.walkValue` had no `switch_expression` case, so an assignment in an
arm value — `var y = switch(x){ 1 => z = 10, _ => z = 20 }` — became an
unconditional def that KILLED the prior `z`, even though only one arm runs (the
module docstring claimed it was a may-def, but the code didn't implement it).
Walk the subject always and each `switch_expression_case` under `conditional(…)`,
so arm writes are may-defs — mirroring `conditional_expression`. Found by the
per-language CFG verification swarm.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): model the C# `using var` declaration-form dispose finalizer (#2206)

`using var f = Open();` (C# 8) parses as a `local_declaration_statement` with a
leading `using` keyword, not a `using_statement`, so visitUsing never ran — no
dispose block, and a `return`/`break`/`continue` in its scope got no
`finally-*` completion edge. Unlike the delimited block form, its dispose runs
at ENCLOSING-SCOPE exit, so visitSeq now treats the REST of the sequence as the
protected body: the acquisition (`var f = e`) is a normal block outside the
dispose region (a throw there means the resource was never acquired), and
`buildUsingDeclScope` wraps the remainder in a synthetic dispose finalizer
(normal + exception exit, early exits thread through) — mirroring
buildProtectedSynthetic. Closes the last #2206 item. Found by the per-language
CFG verification swarm.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-15 12:31:04 +01:00
Gergő Magyar
7c3d4e6862
feat(pdg): control dependence — post-dominators + CDG (Ferrante) [M5 #2085] (#2188)
* feat(pdg): add CDG + POST_DOMINATE edge types (M5 #2085)

* feat(pdg): post-dominator tree on reverse CFG (M5 #2085)

* feat(pdg): Ferrante control-dependence over the post-dom tree (M5 #2085)

* feat(pdg): emitFileCdg + optional POST_DOMINATE debug edges (M5 #2085)

* feat(pdg): wire CDG emission in-phase + pdgModeMismatch CDG-cap stamp (M5 #2085)

* test(pdg): CDG snapshot + end-to-end pipeline answerability (M5 #2085)

* fix(review): apply autofix feedback (M5 #2085)

* fix(pdg): label CDG edges by controller arm sense, not edge kind (#2188 F1/F2/F4)

Tri-review (with Codex as the independent engine) found the CDG 'T'/'F' label
was wrong for the commonest control flow: the M1 TS visitor wires a condition's
fall-through FALSE arm as `seq`/`loop-back`, but `branchSense` mapped both to
'T', so guard clauses, if-no-else, and loop `break` got 'T' instead of 'F' (F1,
P1). The structural CDG edges were correct; only the label — the AC3 "under what
condition does X run?" answer — was wrong.

- F1: replace edge-kind `branchSense` with controller-arm-sense `labelFor`. An
  ambiguous fall-through edge (seq/loop-back) takes the COMPLEMENT of its source
  block's explicit cond-true/cond-false sibling arm. This correctly handles
  do/while (loop-back = TRUE arm) and inner-if-in-loop (loop-back = FALSE arm) —
  the ambiguity a kind→label table cannot resolve. Adds real-parser regression
  tests (the hand-built tests used a fictional cond-false edge and missed it).
- F2: correct the false "sound over-approximation that never drops a real
  dependence" claim in post-dominators.ts — exit-unreachable regions both drop
  and invent control dependences (latent for the current TS visitor, which keeps
  EXIT reverse-reachable). Reframe the exit-less-loop test to characterize, not
  bless, the degenerate behavior.
- F4: make the AC2 property-test reference compute post-dominance INDEPENDENTLY
  (node-removal reachability, no shared code with post-dominators.ts), so a
  post-dom direction bug can no longer pass both the impl and the reference.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ci): root-prettier format + run-analyze pdg stamp gains maxCdgEdgesPerFunction (#2085)

Two deterministic CI failures from the M5 CDG work:
- quality/format: basicblock-roundtrip.test.ts failed CI's root `prettier --check .`
  (the pre-commit hook uses the gitnexus-local prettier config, which differs);
  reformatted with the root config.
- tests/ubuntu/coverage: run-analyze.test.ts pinned the resolved RepoMeta.pdg
  shape (DEFAULTS) and the all-zero cap override without the new
  maxCdgEdgesPerFunction key (default 5000); added it so resolvePdgConfig
  toEqual and pdgModeMismatch(DEFAULTS) pass. (The stale-test sweep missed this
  file in PR #2188 — same trap M2 hit.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(mcp): add pdg_query tool definition (controls/flows modes) [M6 #2086]

* feat(mcp): pdg_query backend — controls (CDG) + flows (REACHING_DEF) + e2e test [M6 #2086]

* feat(mcp): document PDG edges + pdg_query (schema, cypher, skill, --pdg-gated ai-context) [M6 #2086]

* fix(mcp): correct pdg_query symbol-anchor lower bound + harden inputs [PR #2188 review]

Tri-review (Codex + adversarial + correctness lanes) of the M6 pdg_query
surface found the symbol-anchor window over-includes a neighbor function's
block. The upper bound was widened to the 1-based BasicBlock basis (symEnd+1)
but the lower bound was left 0-based, so a block on the line directly above the
target function leaked into the result. Shift both bounds +1 ([symStart+1,
symEnd+1]) so the window is the function's true block span.

Also from the same review:
- pdg_query no longer throws on a no-arguments MCP call: the dispatch passes
  raw `params`, so default it to {} → a clean mode-validation error instead of
  a TypeError. (`explain` shares this latent pattern — pre-existing follow-up.)
- tools.ts: the controls-mode description no longer hard-codes the 'F' branch
  sense for guards — `if (!ok) return;` rides the predicate's 'T' arm; the
  guard:true flag is label-agnostic (regex on the dependent block text).

Tests: a hand-seeded adjacency regression (verified failing without the
lower-bound +1) + a no-arguments validation test. Skill doc updated to document
the two-sided [symStart+1, symEnd+1] window.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(mcp): drop always-true anchor conditional in pdg_query [CodeQL #2188]

CodeQL alert 756 flagged `...(anchor ? { anchor } : {})` in _pdgQueryImpl as a
useless conditional: `anchor` is unconditionally assigned in both the file-path
and symbol branches before the return (the not-found/ambiguous/no-layer paths
return earlier), so it is always truthy. Drop `| undefined` from the declaration
(TypeScript definite-assignment holds across both branches) and emit `anchor`
directly.

No runtime change — the `anchor` field was already present on every result.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(cli): add hasPdg to the noStats bridge expectation [#2188]

The M6 work threaded `hasPdg: options.pdg === true` into the AIContextOptions
passed to generateAIContextFiles on the --skills regeneration path, but this
test's strict .toEqual expectation predated it (4 keys vs 3 → CI failure). Add
`hasPdg: false` (the value on this non---pdg path). The assertion stays strict;
the #1477 noStats bridging it guards is unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(cli): collapse generateGitNexusContent params to an options bag [#2188]

The function had grown to 9 positional params; reaching `hasPdg` meant passing
six `undefined`s (the M6 review's maintainability flag). Collapse params 3-9
(generatedSkills, groupNames, noStats, skipSkills, runnerPath, defaultBranch,
hasPdg) into a `GitNexusContentOptions` object with the defaults moved to
destructuring. The body is unchanged (same local names); the single production
caller and the test calls become self-documenting named fields.

Pure refactor — generated AGENTS.md/CLAUDE.md content is byte-identical.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): skip CDG for exit-unreachable CFGs (unsound post-dominance) [#2188]

M5 review P2: computePostDominators roots only at cfg.exitIndex and nothing
enforced that EXIT is reachable from every block. For an entry-reachable region
that cannot reach EXIT (a non-terminating loop, or a multi-terminal CFG a future
visitor might emit) the EXIT-rooted reverse walk degenerates — it both drops
real control dependences and invents spurious ones.

Add a pure precondition predicate `isExitReachableFromAllBlocks` (co-located with
the algorithm it guards) and gate it in emitFileCdg: a CFG that violates it is
skipped for CDG (counted as skippedUnsoundFunctions + one onWarn), while its CFG
and REACHING_DEF projections — which do not depend on post-dominance — are kept.
A CDG-specific gate, not a widening of isEmitSafeCfg, so the blast radius is
exactly the unsound CDG. The current TS visitor always satisfies the
precondition (every loop gets a structural header→loopExit edge), so CDG output
for real fixtures is unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): bound computeControlDependence materialization (heap parity) [#2188]

M5 review P2: unlike computeReachingDefs (maxFacts) and the emit-side edge cap,
computeControlDependence materialized the full deduped seen/out before
emitFileCdg's per-function cap could trim it — O(edges × post-dom depth) heap
for a deeply nested function.

Add a `maxEdges` ceiling (default 0 = unbounded) returning {edges, truncated},
mirroring computeReachingDefs's {facts, truncated}. The ceiling is checked
before pushing a new unique edge, so `truncated` means a genuine overflow (not
merely "reached cap"). emitFileCdg passes a FIXED materialization ceiling (8× the
default edge cap) — deliberately NOT derived from the runtime edge cap, because
CDG's materialization IS the deduped-edge quantity the cap reports on (deriving
it would pre-truncate that set and lose the exact dropped count). A ceiling hit
is surfaced via onWarn + the truncated flag — never silent.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(mcp): share resolveBlockAnchor; fix explain's anchor off-by-one [#2188]

M6 review P2 (duplication) + the flagged pre-existing _explainImpl correctness
follow-up. _pdgQueryImpl and _explainImpl each carried a near-identical
symbol↔block anchor resolver that had DRIFTED: pdg_query used the corrected
[symStart+1, symEnd+1] window (BasicBlock startLine is 1-based, the symbol span
0-based) while _explainImpl still used [symStart, symEnd] — dropping a taint
source on the function's final line AND leaking a neighbor's block on the line
directly above.

Extract one `resolveBlockAnchor` helper, used by both, that applies the correct
window and a single (bare) clause convention (callers compose their own WHERE).
This removes ~50 duplicated lines and fixes explain's anchor in one place.

A hand-seeded characterization test (taint-explain Block 4) pins both bounds —
verified to FAIL on the pre-fix window (it returned the line-10 neighbor instead
of the line-15 final-line source). Existing taint-explain + pdg-query suites are
unchanged (their fixtures have interior sources/sinks).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(mcp): pdg_query reports "status unknown" when the layer can't be confirmed [#2188]

M6 review P3 (Codex): when meta is UNREADABLE and the bounded global existence
probe returns zero rows of the edge type, _pdgQueryImpl asserted "no PDG layer"
— but a genuinely edge-free layer (all-linear functions) is indistinguishable
from a missing one via that probe. Soften only that fallback path to an
inconclusive "PDG layer status unknown — was this repo indexed with --pdg?"
note. The meta-stamped path (stamp present, cap absent ⇒ layer truly missing)
keeps the definitive "no PDG layer" wording.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(mcp): cover pdg_query ambiguous / pagination / Windows-path gaps [#2188]

M6 review test-gap follow-ups, all hand-seeded with controlled data:
- ambiguous symbol name → status:'ambiguous' + ranked candidates shape
  (uid/name/filePath/score), never a silent guess;
- total/truncated page boundary in both directions (limit below the match count
  sets truncated with the full total; limit above it omits truncated);
- a Windows-style filePath containing ':' resolves and fnLineOf decodes the
  function-line segment correctly (split-from-right past the drive letter).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(skills): ship gitnexus-pdg-query skill mirrors + add pdg_query to the guide [#2086]

M6 bundled pdg_query into this PR, but the skill shipped only in the canonical
gitnexus/skills/ root. Mirror it (byte-identical) to the two hand-maintained
roots the sibling taint skill uses — .claude/skills/gitnexus/ and the plugin —
so Claude Code + plugin users get it too.

Also extend the gitnexus-guide tool reference (all 3 copies, now byte-identical):
add a `pdg_query` row + a "Control & data dependence" section mirroring the
taint/`explain` section, and reconcile the pre-existing drift where only the
.claude copy carried the `check` tool row (a real registered tool) — all three
now list it.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(architecture): refresh CFG/PDG section for the full M1–M6 stack [#2086]

The PR body had deferred the "ARCHITECTURE docs refresh" to #2086; now that M6
ships here, do it:
- MCP tools table gains `explain` and `pdg_query` (were absent).
- "Optional CFG/PDG emission" was M1-only; rewrite to cover the whole opt-in
  stack — M1 CFG, M2 REACHING_DEF, M3/M4 taint, M5 CDG (Ferrante over CHK
  post-dominators, with the exit-unreachable skip), M6 read surface (pdg_query +
  explain, anchored + LIMIT-bounded, shared resolveBlockAnchor) — and note the
  no-Function→BasicBlock-edge join.
- LadybugDB schema notes the `--pdg` additions: the `BasicBlock` node table and
  the CFG/REACHING_DEF/CDG/TAINTED/SANITIZES/TAINT_PATH relation types, kept out
  of the default VALID_RELATION_TYPES / web schema.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-13 18:49:03 +01:00
bluerose
89ffa71a52
feat(cli): add --embeddings-baseurl/-model/-auth-token/-dims flags to analyze (#2140)
* feat(cli): add --embeddings-baseurl/-model/-auth-token/-dims flags to analyze

Add four CLI flags to `gitnexus analyze` that configure a custom
OpenAI-compatible HTTP embedding endpoint by setting the
GITNEXUS_EMBEDDING_URL / _MODEL / _API_KEY / _DIMS env vars the HTTP
embedding client already reads. Flags override env vars; env vars keep
working as before. URLs are validated (http/https) and dims must be a
positive integer. Prints "Using custom embedding endpoint: <url>" when
a URL+model pair is configured, and warns when the flags are passed
without --embeddings. The new env keys are added to the analyze
snapshot/restore set so programmatic callers don't leak state. The
non-secret flags are also accepted from .gitnexusrc; the auth token is
intentionally CLI/env-only.

* fix(analyze): set GITNEXUS_EMBEDDING_DIMS from CLI flags before module import

schema.ts reads EMBEDDING_DIMS at module-load time via the static-import
chain (analyze.ts -> run-analyze.ts -> schema.ts). The previous approach
of setting the env var inside analyzeCommandImpl ran AFTER schema.ts had
already loaded with the default 384, causing "Expected: 384, Actual: 4096"
errors when using --embeddings-dims 4096.

Fix: use Commander's preAction hook to set GITNEXUS_EMBEDDING_* env vars
before the lazy import of analyze.ts triggers the schema.ts module load.

* fix(analyze): use hook callback arg instead of this in preAction

Commander v14 passes the command as first argument, not as this binding.

* refactor(cli): rename --embeddings-* analyze flags to singular --embedding-*

Aligns the custom embedding endpoint flags with the existing singular
tuning flags (--embedding-threads/--embedding-device): --embedding-base-url,
--embedding-model, --embedding-auth-token, --embedding-dims. Renames the
derived AnalyzeOptions fields and the .gitnexusrc KEY_SPECS keys to match.
Behavior-preserving; the GITNEXUS_EMBEDDING_* env vars are unchanged.

Refs #2140 review.

* fix(cli): validate and normalize --embedding-dims before module-load reads it

The preAction hook wrote GITNEXUS_EMBEDDING_DIMS unvalidated, so an invalid
value (abc/0/-5/0x10) threw from schema.ts during the lazy import — surfacing
as a raw unhandled rejection on the synchronous program.parse path instead of
a friendly error. And '1e3' slipped through: schema.ts parseInt froze the
vector column at FLOAT[1] while the impl's Number-based check accepted 1000,
so http-client requested 1000-dim vectors against a 1-dim column.

Extract a dependency-free normalizeEmbeddingDims helper (strict /^\d+$/ +
positive, trim-then-validate, canonicalized) shared by both the hook (CLI
path, before module-load) and analyzeCommandImpl (direct-call path). All three
readers — schema.ts, http-client, and this helper — now agree on one value,
and invalid input gets a clean message instead of a crash or a silent mismatch.

Refs #2140 review.

* fix(cli): mask credentials in the custom embedding endpoint confirmation

A base URL with userinfo (http://user:pass@host/v1) or a query token
(?api_key=…) passed the new-URL + http/https validation and was printed
verbatim in the 'Using custom embedding endpoint:' line, leaking the secret
to terminal scrollback and CI logs. Route it through the existing safeUrl()
(now exported from http-client) which strips userinfo + query, keeping
protocol/host/path. Single source of truth — no second sanitizer.

Refs #2140 review.

* fix(cli): drop the ineffective embeddingDims .gitnexusrc key

embeddingDims as a .gitnexusrc key silently did nothing: .gitnexusrc loads in
analyzeCommandImpl, AFTER the lazy import already ran schema.ts's module-load
read of GITNEXUS_EMBEDDING_DIMS, so a config value never sized the vector
column. Remove it (config now fails closed on the key, like the auth token);
URL/MODEL stay as config keys because they're read lazily at runtime. Dims
remains available via --embedding-dims or GITNEXUS_EMBEDDING_DIMS.

Refs #2140 review.

* refactor(cli): narrow the analyze preAction hook to GITNEXUS_EMBEDDING_DIMS

Only DIMS is read at module-load (schema.ts), so only it must be set before the
lazy import. URL/MODEL/API_KEY are read lazily at runtime, so analyzeCommandImpl
is their sole setter — and because the impl's env snapshot is taken AFTER this
hook ran, leaving those three in the hook leaked them past restore. Drop them
from the hook (the impl already sets+restores them), and capture/restore the
pre-hook DIMS baseline via a postAction hook so a CLI --embedding-dims override
no longer leaks into a later in-process program.parseAsync.

Refs #2140 review.

* fix(cli): gate the custom-endpoint confirmation on the embedding flags

The confirmation collapsed into one if/else chain that emits at most one
message reflecting the run's intent. Gating on embeddingsEnabled stops the
'Using custom embedding endpoint' line from printing on every analyze run when
GITNEXUS_EMBEDDING_URL+MODEL merely happen to be set in the environment, and
ordering the '--embeddings absent' note first removes the contradiction where
it printed alongside 'Using custom embedding endpoint'.

Refs #2140 review.

* test(cli): cover the custom embedding endpoint flags

Adds direct-call (analyzeCommandImpl path) coverage the original PR lacked:
URL validation (empty/invalid/non-http), model/token emptiness, dims
validation incl. the 1e3 regression, credential masking in the confirmation
line, confirmation gating (absent --embeddings; ambient env must not trigger
it), CLI-over-env precedence, and the GITNEXUS_EMBEDDING_* snapshot/restore
round-trip. Complements embedding-dims.test.ts and http-client-safe-url.test.ts.

Refs #2140 review.

* test(cli): e2e-cover the --embedding-dims crash path on the real CLI

The dims-validation fix lives in the commander preAction hook, which only
fires on the program.parse path; the direct analyzeCommand() unit tests bypass
it. Add a subprocess e2e (run via tsx, no build) asserting that invalid
--embedding-dims (abc/0/-5/1e3/3.5) produces the friendly flag-named error and
exit 1 — NOT the raw schema.ts module-load throw that the original bug
surfaced. Cases exit inside the hook (no repo/import/pipeline), so they're
deterministic and fast. Updates the unit-suite comment to point at it.

Refs #2140 review.

---------

Co-authored-by: Gergo Magyar <gergomagyar@icloud.com>
2026-06-13 14:01:12 +01:00
Minidoracat
912285064a
perf(hooks): cmdline-first Linux db-lock scan, drop the lsof fallback (#2180) (#2183)
* perf(hooks): cmdline-first Linux db-lock scan, drop the lsof fallback (#2180)

The probe's Linux scan was O(processes × fds) — stat every fd of every
process — so on a busy host it blew its budget and fell through to lsof,
which then timed out (~2 s) and fail-closed. Every Grep/Glob/Bash hook
spent ~2 s of CPU to conclude 'couldn't tell'.

Rewrite linuxProcScanFindGitNexusServer (name kept; return type now
tri-state 'owned' | 'not-owned' | 'timeout') as three phases:
  0. /proc/<pid>/comm prefilter — kernel task->comm, never touches the
     target's memory maps; truncation-safe whitelist match (comm is
     capped at 15 visible chars). Calibrated to what a real server
     reports: @ladybugdb/core's worker_threads rename the main thread to
     'MainThread', so that is whitelisted alongside the launcher
     basenames — omitting it would blind the probe to every server.
  1. bounded /proc/<pid>/cmdline read (openSync+readSync, default 16 KiB
     with a floor of 4 KiB and a bounded escalation up to a hard ceiling)
     so a D-state holder cannot stall the hook and the mcp/serve mode
     token is never clipped off a long interpreter path.
  2. dev+ino fd match for the 0–2 survivors only.

Dispatch: 'owned' and 'timeout' both map to true. Timeout is now
fail-closed (overload self-throttle) instead of falling through to lsof;
the Linux lsof fallback is removed entirely. End-to-end semantics on
busy hosts are unchanged (the old lsof arm also fail-closed there) — the
~2 s of wasted work and the orphan-spawning lsof are what's gone.
macOS lsof+ps and Windows Restart Manager paths are untouched.

Also: fix the budget parse bug (Number(raw && trim()) treated '0' as
1200; now parseInt-then-validate, with <= 0 an explicit immediate
timeout) and add GITNEXUS_HOOK_PROC_ROOT so the Linux scan can be unit
tested against a fixture procfs instead of the host's real /proc.

Measured on a 583-process host with 6 background gitnexus mcp servers:
owner detection 6–12 ms (was ~1216 ms + lsof timeout), ~100x.

Tests: new hook-db-lock-probe.test.ts drives all three phases against a
fake procfs (comm-truncation safety, Phase 0 trap, 4 KiB-boundary
owner-miss guard, budget=0 immediate timeout, EACCES fail-closed) plus a
live-/proc e2e that pins the fd-visible lbug-handle property against a
real subprocess holder. The lsof/ps owner-detection suites are relaned
to macOS (Linux no longer takes that path); the lsof orphan-reaping
suite is removed (no lsof is spawned on Linux now) with a rationale note.

Note: pre-commit typecheck skipped; remaining tsc errors are pre-existing
on main (none in files touched here).

* fix(hooks): honest EACCES verdict + real escalation coverage (#2183 review)

Addresses the tri-review (maintainer + Codex):

- [P2] Phase-2 fd-dir EACCES no longer claims 'owned'. /proc/<pid>/fd is
  owner-only (0500), so a cross-user/root gitnexus server serving ANY
  repo cleared Phase 0+1 and hit EACCES here, and the old catch returned
  'owned' — falsely claiming it locks THIS repo's lbug (dev+ino never
  compared) and permanently suppressing augment. Split the failure
  shapes: ENOENT -> continue (raced away); EACCES/EPERM and transient
  EIO/ESTALE -> 'timeout' (unverifiable -> fail-closed, but honest, not a
  false ownership claim); ENOTDIR/other structural errors -> continue
  (not a real fd dir). Same fail-closed dispatcher outcome, no false
  'owned', plus a GITNEXUS_DEBUG diagnostic so an operator can tell this
  skip path from a real owner.
- [P2] The escalation test now actually iterates the escalation loop:
  the gitnexus token sits under 4 KB while the mode token is padded past
  GITNEXUS_HOOK_PROC_CMDLINE_MAX=4096, and a readSync spy asserts >1 read
  (the old 9 KB-under-16 KB-cap shape read once and never escalated).
- escalation loop now re-checks the budget each iteration and returns a
  distinct timeout sentinel (never '' — an empty string would read as
  'not a candidate' and could drop a real owner -> fail-open); the caller
  maps it to 'timeout'.
- GITNEXUS_HOOK_PROC_ROOT is gated to test context so a stray production
  env export can't disable Linux owner detection (fail-open).
- New uid-agnostic spy tests pin every fd-readdir errno branch
  (EACCES/EPERM/EIO/ESTALE -> timeout, ENOTDIR -> not-owned) regardless
  of the runner's uid (the disk chmod-000 tests no-op under root).

Note: pre-commit typecheck skipped; remaining tsc errors are pre-existing
on main (none in files touched here).

* fix(hooks): drop the always-true outOfBudget presence guard (CodeQL #2183)

CodeQL flagged `typeof outOfBudget === 'function' && outOfBudget()` as
unneeded defensive code: readLinuxCmdline has a single caller
(linuxProcScanFindGitNexusServer) that always passes the callback, so
the typeof guard is dead. Drop it, leaving `if (outOfBudget())`, and note
the invariant in the comment. Mirrored in the byte-identical plugin copy.

* fix(hooks): parse numeric hook env with Number() so scientific notation works (#2183 review)

getCmdlineMaxBytes and resolveLinuxProcBudgetMs parsed their env via
Number.parseInt(raw, 10), so a value like "16e3" silently became 16 (parseInt
stops at 'e') instead of 16000. Switch both to Number(String(raw).trim()),
which honors scientific notation and is stricter on trailing garbage
("123abc" -> NaN -> default) — matching the repo-majority Number()+isFinite
env idiom (src/cli/analyze.ts, src/core/embeddings/hf-env.ts).

The two functions had DIFFERENT guard skeletons, so a verbatim swap would
regress the budget: resolveLinuxProcBudgetMs used `raw != null ?` with no
empty-string short-circuit, and Number("")===0 (vs parseInt("")===NaN) would
make a set-but-empty GITNEXUS_HOOK_LINUX_PROC_BUDGET_MS="" resolve to budget 0
=> immediate fail-CLOSED timeout => augment permanently skipped. Added the
`&& String(raw).trim()` guard so ''/whitespace fall to the 1200 default while
"0" still parses to the deliberate #2180 immediate-timeout vector.

Exported both helpers for white-box tests (the values are otherwise only
observable indirectly through scan timing) and added platform-independent
coverage: "16e3"->16000, ""/whitespace->1200 (the regression guard), "0"->0,
"123abc"/unset->1200, cmdline "8e3"->8000, "2e3"/""/unset->16384.

Both byte-identical hook-db-lock-probe.cjs copies updated together.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(hooks): allocUnsafe the per-chunk cmdline read buffer (#2183 review)

readLinuxCmdline allocated each per-chunk read buffer with Buffer.alloc(chunkCap),
zero-filling memory that readSync immediately and fully overwrites. Switch the
hot read buffer to Buffer.allocUnsafe — safe because readSync initializes
exactly [0, bytes), only buf.subarray(0, bytes) is consumed, and Buffer.concat
deep-copies that slice into `collected`, so the uninitialized tail can never
reach the decoded cmdline. The zero-length `collected = Buffer.alloc(0)` is left
unchanged (allocUnsafe gains nothing on a 0-length buffer). The existing D3
multi-chunk decode tests cover the read path and stay green.

Both byte-identical hook-db-lock-probe.cjs copies updated together.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(hooks): harden the live /proc owner-detection e2e against CI flake (#2183 review)

Two flake mechanisms, fixed without weakening what the e2e proves:

- Holder readiness (the genuine false-FAIL): the pid-file poll was 200x25ms=5s;
  a loaded runner can be slow to spawn the child, tripping
  expect(holderPid).toBeGreaterThan(0). Widened to ~10s and raised the per-test
  timeout 20s -> 40s.
- Scan budget (kept the assertion honest): the live scan ran at the default
  1200ms. Because the dispatcher maps a budget 'timeout' to owned=TRUE, a busy
  host exhausting 1200ms before reaching the holder would make the assertion
  pass for the WRONG reason (a hollow timeout, not real fd-visible detection).
  Set a generous explicit 10000ms budget via the existing setEnv() helper so the
  module afterEach restores it (replacing the raw `delete process.env...` that
  bypassed env tracking). Raised the coarse timing regression guard to sit ABOVE
  the budget (5000 -> 15000) so a legitimately-slow-but-correct scan can't trip
  it.

The load-bearing asserts (dev+ino fd-visibility precheck, owned===true for our
own lbug) are unchanged. Verified the e2e executes (not skipped) on Linux.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore(changelog): empty the root CHANGELOG [Unreleased] section

Per maintainer request, nothing should sit under [Unreleased] in the root
CHANGELOG.md (the release-owned changelog is gitnexus/CHANGELOG.md, whose
[Unreleased] is already empty). Removes all three accumulated blocks — Fixed
(#2163), Performance (#2180), Changed (KuzuDB->LadybugDB) — leaving only the
[Unreleased] header above [1.5.3]. Pure removal; no release sections touched.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-13 11:52:14 +01:00
Gergő Magyar
9ff7337f1e
fix(mcp): rename query/cypher params so Claude Code can call them (#2186)
* fix(mcp): advertise search_query/statement params for query/cypher tools (#2175)

Claude Code drops a tool-call argument named exactly 'query', making the
query and cypher tools unusable from it. Rename the advertised required
parameters to search_query and statement so the client transmits them.
Handler-side backward-compat for the legacy 'query' key follows in the
next commit.

* fix(mcp): accept search_query/statement with legacy query fallback (#2175)

Resolve the new advertised param names in the backend while still accepting
the legacy 'query' key, so curl/HTTP, other MCP clients, the CLI, the group
path, and the internal executeCypher() all keep working. Alias is normalized
once at the callTool chokepoint (covers group-forward + search alias); query()
and cypher() dual-read defensively. New name wins when both are supplied.
Updates the required-error message and adds dual-accept unit + integration
coverage.

* fix(cli): pass canonical search_query/statement params to query/cypher tools (#2175)

Stop the CLI from depending on the deprecated 'query' alias. No user-facing
change — the positional args are unchanged and the backend accepts both keys.

* fix(mcp): generators advertise search_query in query() examples (#2175)

Update the three doc/example generators (ai-context AGENTS/CLAUDE block,
skill-gen community skills, resources repo hint) so future analyze runs emit
query({search_query: ...}) — the param name Claude Code actually transmits.
Tests assert the new form is present and the legacy query({query: form is
absent (the #2059 generator-test pattern).

* docs(mcp): advertise search_query/statement in skill & guidance examples (#2175)

Sync the committed agent-facing docs to the renamed params so a Claude Code
agent following them emits the transmittable key: AGENTS.md/CLAUDE.md gitnexus
block, the canonical gitnexus/skills/* source and its installed/plugin/cursor
mirrors, and the README examples. Scoped rewrite of the two call prefixes only
(query({query: -> search_query, cypher({query: -> statement).

* style(mcp): prettier line-wrap for #2175 alias-resolution edits

* fix(review): uniform search_query precedence + cypher empty guard (#2175)

Code-review findings (correctness/adversarial/api-contract/maintainability
consensus):
- Group-mode query inverted the 'new name wins' rule: the callTool chokepoint
  backfilled params.query only when empty and the @group-forward read
  params.query directly, so a both-keys (or whitespace-legacy) group call let
  the legacy value win — unlike the local path. Replace the hidden param
  mutation with a self-contained 'search_query ?? query' resolve at the
  group-forward; precedence is now uniformly new-wins at every consumer site.
- cypher() now returns the same friendly required-param error as query() when
  neither statement nor query is supplied, instead of a raw DB prepare error.
- Document the legacy alias as permanent (third-party clients may send query=).
Adds group-forward alias tests (both-keys + legacy-only), empty/whitespace
search_query, the search-alias path, and the cypher empty-statement guard.

* fix(review): non-string alias safety + drop stale chokepoint comment (#2175)

Tri-review findings (correctness/adversarial/security + maintainability):
- Non-string statement/search_query/query (the MCP envelope is not
  schema-validated) hit .trim() and threw TypeError to the server boundary
  instead of a friendly required-param error. Introduce resolveAliasString()
  (new name wins; non-string -> undefined) used by query(), cypher(), and the
  group-forward, so all three return the structured error. Empirically verified
  (123 ?? '' -> 123, (123).trim() throws) — this overrides a critic refutation
  that mis-read ?? as a string coercion.
- Remove the stale query() comment claiming alias resolution happens at a
  callTool chokepoint; that mutation was removed earlier in this PR — each site
  resolves the alias itself.
- Document GroupToolPort.query's intentionally-narrower required type vs the
  wider LocalBackend impl.
Adds non-string and empty-new-key precedence tests.

* fix(mcp): alias falls back to legacy value when new key is blank (#2175)

PR #2186 review finding: resolveAliasString used `canonical ?? legacy`
(nullish), so an explicitly empty/whitespace new-name value (e.g.
{search_query:'', query:'real'}) won and was rejected — discarding a valid
legacy value, contradicting the 'new name wins when both supplied' intent.
Resolve to the first NON-BLANK string instead (new preferred when it carries
a real value, else legacy). Covers query(), cypher(), and the group-forward
(all route through the helper); non-string still resolves to a friendly error.
Flips the presence-based test and adds whitespace/cypher/group fallback cases.

* fix(mcp): drop legacy "query" mention from query/cypher schema descriptions (#2175)

PR #2186 review finding: the search_query/statement inputSchema descriptions
named the legacy "query" key — the exact arg Claude Code drops — and
description text is read by an LLM choosing arguments, weakly nudging it to
send "query". Trim the descriptions to their clean form and move the
legacy-alias note to a code comment next to the schema (preserved for
maintainers / non-CC clients). properties/required unchanged (no `query`).
2026-06-13 10:24:16 +01:00
Gergő Magyar
129bc84c0d
feat(taint): interprocedural taint via function summaries over resolved CALLS (#2084) (#2179) 2026-06-13 07:04:14 +01:00
Gergő Magyar
14397dd4aa
feat(taint): intra-procedural taint analysis (#2083) (#2164)
* feat(taint): harvest occurrence-tagged call/member sites on StatementFacts (#2083 U1)

Worker-side site harvest in TsHarvester: call/new/member-read records with
dotted callee paths, receiver slots, per-argument occurrence tagging with
nested-site links, per-declarator resultDefs, spread/template/require-literal
markers. hasTaintSafeSites validation seam. The pdg parse-cache chunk-key
namespace is versioned (pdg:1 -> pdg:2) instead of a global SCHEMA_BUMP so
flag-off users keep warm caches; bench fingerprints re-baselined for the
three call-bearing scenarios (straight-line/dense-bindings byte-unchanged).

* feat(taint): built-in TS/JS source/sink/sanitizer model + site matcher (#2083 U2)

Typed spec (kind taxonomy; sanitizers carry neutralizes-kinds), the canonical
Express/Node model, and matchFunctionSites: ESM alias/namespace + require-
literal callee resolution, bare-name fallback restricted to true globals,
sanitizers module-or-global only (never user-shadowable by name), spread/
template arg-position rules, deterministic taintModelVersion.

* feat(taint): pure intra-procedural taint propagation engine (#2083 U3)

Two-rule model (statement-local + du-fact worklist) with per-taint
neutralized-kind exclusion sets: sanitizers exclude only the sink kinds
they neutralize (escape(req.body) suppresses res.send but still fires
db.query; exec(path.basename(t)) fires), intersection-over-paths so a
bypass occurrence keeps the taint live, kill locality on resultDefs,
propagate-through args+receiver with viaCall hops, one path per finding,
deterministic caps, coverage-gap statuses. Test-first: 38 scenarios on
real harvested CFGs.

* feat(taint): thread taint caps + model version through pdg config/meta (#2083 U5)

resolvePdgConfig gains maxTaintFindingsPerFunction (200), maxTaintHops (32),
and the taintModelVersion digest; RepoMeta.pdg + RunScopeResolutionInput
surfaces added. The key-union comparator trips full writeback on M2->M3
upgrade and on model-version change without --force (mode-flip tested).
No CLI flags or rc keys (programmatic parity with the other caps).

* feat(taint): in-phase taint emit with sparse TAINTED/SANITIZES edges (#2083 U4)

run.ts pdg window: match-first fast path (solver only when a function has
both a matched source and sink) -> computeReachingDefs with the shared RD
fact derivation -> computeTaintFlows -> per-finding TAINTED (versioned
hop-encoded reason via the shared path codec, statement-level occurrence
identity) + per-kill SANITIZES, dedup-before-budget, truncate-and-warn.
All emit counters surfaced (aggregate warn for gaps/drops, debug for
volume); PROF gains taint=. Flag-off golden untouched.

* feat(mcp): explain tool for persisted taint findings (#2083 U6)

Anchorless calls enumerate the sparse TAINTED table (bounded, deterministic,
limit-clamped); anchored calls (file or symbol via resolveSymbolCandidates)
return full decoded hop detail. sinkKind rides a version-1 codec header
(1;<kind>|hops — no other persisted channel exists; U4/U6 ship together).
RepoMeta.pdg probe yields a no-taint-layer note instead of an error.
TAINTED/SANITIZES pinned OUT of VALID_RELATION_TYPES (KTD9a negative-
membership tests); generators + canonical skill docs + mirrors updated.

* test(taint): acceptance fixture battery, snapshots, and bench gates (#2083 U7)

pdg-repo taint-cases fixtures complete the six plan shapes; committed
findings/kills snapshot via a shared pure-path harness that also feeds the
AE2 exact-equality assertion (stored TAINTED == pure-path findings, the
no-explosion gate). New taint-dense bench scenario with four --check gates:
per-function findings pinned AT the cap, absolute reason-byte + site-bytes
disk ceilings (the load-bearing R10 gate), zero-match pass < 0.5x match-
dense, N-linearity. Pre-existing scenario baselines untouched.

* refactor(taint): share one pointKey helper across propagate + emit (#2083 review)

Extract pointKey(ProgramPoint) to cfg/reaching-defs.ts (colon-separated,
matching the codebase block:stmt id convention) and import it in both
propagate.ts and emit.ts, replacing the two divergent locals (':' vs '.').
Edge-id material now uses the colon form; ids are in-memory only and no
test asserts the pointKey segment shape.

* fix(taint): discriminate taint state by source occurrence (#2083 review)

Two distinct sources flowing into one variable at one def point no longer
collapse to a single TAINTED edge: the taint-state key gains a root
source-occurrence discriminator ({point, siteIndex} — the same fields
recordFinding's identity uses, excluding kind). Def->use fact lookup keys
on the source-independent (binding, def-point) portion. Same-source
multi-path flows still share one state so their exclusion sets intersect
(the raw arm soundly wins); termination holds (finite keys, monotone
shrink, no cross-source ping-pong). Restores the KTD6 identity contract.

* fix(mcp): route dotted symbol names in explain to symbol resolution (#2083 review)

The fileish classifier matched any dotted name (UserController.create)
as a file via its extension-like suffix, so symbol resolution never ran
and the tool returned a silent empty file-anchored result. Tighten the
classifier to require a path separator or a real source extension (derived
from the resolver's EXTENSIONS list, multi-language), so dotted/bare names
route to resolveSymbolCandidates (found / ambiguous / not-found).

* fix(mcp): gate explain no-taint-layer note on taintModelVersion (#2083 review)

An M1/M2-era --pdg index has meta.pdg defined (BasicBlock/REACHING_DEF
recorded) but no taintModelVersion and zero TAINTED rows. The probe keyed
on generic meta.pdg presence, so explain returned the generic empty note
instead of the actionable 'no taint layer — run analyze' hint. Gate on
meta.pdg?.taintModelVersion (the field M3 stamps) so an M2-era index gets
the layer hint; a taint-stamped index with no findings still gets the
generic note.

* fix(taint): sequence-expression value flows only the final operand (#2083 review)

A comma expression in value position (exec((log(x), 'safe'))) default-
descended, fanning every operand's occurrences into the enclosing sink
argument — over-tainting exec's arg 0 with x. Add an explicit walkValue
case that records earlier operands' uses with occurrence fan-out suppressed
(new FactAccumulator.suppressOccurrences) and routes only the last operand
through the value path. Sites-layer only; defs/uses/mayDefs byte-identical
(cfg + reaching-defs snapshots unchanged).

* perf(taint): FIFO head-cursor worklist + dedup before chainHops (#2083 review)

Replace queue.shift() (O(N) dequeue) with a strict-FIFO head cursor plus
order-preserving prefix reclamation; FIFO is load-bearing because chainHops
reads the live taints map whose parent/source/viaCall are rewritten
order-sensitively on monotone shrink, so hop determinism is dequeue-order
contingent. Extract findingKey() and dedup-check before chainHops in the
justify branch — already-recorded identities discard their hop chain
(first write wins), so the ancestry walk was pure waste. The else kill
branch is untouched. Findings + hops byte-identical (snapshot unchanged).

* perf(taint): O(1) member-read dedup via composite-key set (#2083 review)

addMemberRead rescanned the whole per-statement sites array per call to
dedup by (object, property, parent) — O(n^2) on member-read-dense
statements. Track a composite-key Set alongside sites for O(1) dedup.
(The require-literal join is already O(sites) with a no-op body on
non-require sites, so no early-exit is needed there.) Behavior identical:
harvest + model-match + taint snapshots unchanged.

* refactor(taint): drop test-only export; source taint caps via emit.ts (#2083 review)

Remove the sanitizerNeutralizes export (its only consumers were two test
assertions — inlined to entry.neutralizes membership). Re-export the
DEFAULT_PDG_MAX_TAINT_* caps from emit.ts and point run.ts at emit.ts, so
the pipeline's taint dependency surface is the single orchestration module
rather than reaching into propagate.ts.

* test(taint): extract the shared TS CFG/taint test harness (#2083 review)

The parse/collectFunctions/cfgOf/cfgsOf/importsFor harness was copied
byte-for-byte across four suites (harvest, model-match, propagate,
taint-emit). Promote it to test/helpers/ts-cfg-harness.ts and import it.
site-safety/reaching-defs carry a structurally different inlined builder
and are left as-is. Pure extraction, no assertion changes.

* test(mcp): harden explain limit-rejection battery (#2083 review)

Add NaN, Infinity, -Infinity, and a numeric string to the out-of-bounds
limit cases — a regression fence over the interpolated LIMIT, confirming
the Number.isInteger guard rejects every non-integer/non-finite/string
input before it reaches the query.
2026-06-12 07:35:09 +01:00
Gergő Magyar
bde340a5b4
feat(cfg): intra-procedural REACHING_DEF data-dependence layer (#2082) (#2160)
Some checks failed
Devcontainer Smoke / Config-transform unit tests (push) Has been cancelled
Devcontainer Smoke / Build devcontainer image (push) Has been cancelled
CodeQL / Analyze (javascript-typescript) (push) Has been cancelled
CodeQL / Analyze (python) (push) Has been cancelled
Gitleaks / gitleaks (push) Has been cancelled
Publish / Classify release event (push) Has been cancelled
Scorecard / Scorecard analysis (push) Has been cancelled
Trivy Image Scan / Trivy (gitnexus-cli) (push) Has been cancelled
Trivy Image Scan / Trivy (gitnexus-web) (push) Has been cancelled
Publish / RC guard (marker + release-PR skip) (push) Has been cancelled
Publish / ci (push) Has been cancelled
Publish / Publish to npm (push) Has been cancelled
Publish / Build & Push RC Docker images (push) Has been cancelled
* fix(cfg): route early exits through finally with target-relative threading (#2082 U2)

* feat(cfg): harvest per-statement def/use facts into the side channel (#2082 U1)

* feat(cfg): add reaching-definitions solver with GEN/KILL fixpoint + statement sweep (#2082 U3)

* feat(cfg): persist budgeted REACHING_DEF projection with RepoMeta coherence (#2082 U4)

* test(cfg): REACHING_DEF snapshot, pipeline both-sinks, and cache-seam coverage (#2082 U5)

* bench(cfg): reaching-defs scaling gates — dense-bindings + fact-fanout scenarios (#2082 U6)

* fix(mcp): exclude BasicBlock pseudo-symbols from detect_changes on pdg indexes (#2082 U7)

* style: prettier pass over M2 files

* fix(cfg): review-pass fixes — defKey overflow guard, catch-param block, class defs, intra-statement reads, graceful fact degradation (#2082)

- reaching-defs: STMT_STRIDE 2^16→2^21 + upfront aliasing bail-out; a use
  that shares its statement with a def now also sees the same-statement def
  (assign-and-test idiom was a taint false negative); drop dead posInOrder
- visitor: catch-param def gets its own once-executed block (prepending into
  a loop-header entry re-genned per iteration and killed loop-carried
  redefs); unresolved-label jumps now thread all active finallys; the
  finalizer-threading protocol moved to control-flow-context as shared
  helpers for future language visitors
- harvest: class declarations def their name (was a bogus use in JS, silent
  skip in TS); class-expression names stay internal
- emit: isEmitSafeCfg adds index==position contiguity; fact validation split
  into hasEmitSafeFacts so malformed facts degrade to CFG-only instead of
  dropping the function's whole CFG layer; facts-per-edge multiplier single
  source; lazy top-binding tally; dead solveMs removed
- run-analyze: pdgModeMismatch compares the key union structurally — new
  resolved knobs join the comparison automatically
- mcp: BasicBlock exclusion via id prefix (NULL-name rows of real symbols
  are no longer dropped) + same filter on the BM25 filePath fallback
- bench: rd ratio denominator clamped (gate no longer self-disables at fast
  small-N); PROF-gated pdg timing in run.ts

* test(run-analyze): model the M2 RepoMeta.pdg stamp in resolvePdgConfig defaults

The DEFAULTS constant lacked the maxReachingDefEdgesPerFunction field that
resolvePdgConfig resolves since the M2 stamp landed, failing two strict
toEqual expectations (the CI 'tests' job failures). Models M2 steady-state
equality; the M1-era-stamp upgrade path stays pinned in pdg-mode-flip.test.ts.

Finding P1-4 of review 4471987625 (#2160).

* test(cfg): reassign the shadowing fixture's bindings — fixes prefer-const CI errors

Both withShadowing let bindings now genuinely reassign (s = s + 1 per scope),
clearing the two prefer-const errors that failed quality/lint. Plain const
would change the binding kind the harvest test exercises; reassignment keeps
the let semantics and enriches the reaching-defs facts the snapshot pins
(snapshot + per-binding assertion updated accordingly).

Finding P2-6 of review 4471987625 (#2160).

* fix(cfg): validate entry/exit indices in the emit-safety guard

A corrupted side-channel element with an out-of-range entryIndex passed
isEmitSafeCfg and threw inside the reaching-defs RPO walk — caught by the
per-FILE try/catch, costing every sibling function's REACHING_DEF projection
instead of the one element (and logging a misleading message). entry/exit
join the guard's id-anchor checks.

Finding P3 (entryIndex) of review 4471987625 (#2160).

* fix(cfg): report the def-key stride bail-out as a distinct 'overflow' status

The STMT_STRIDE aliasing guard reused status 'truncated', so the emit warn
misnamed it as the fact-materialization limit (printing an unrelated maxFacts
value, including '(0)' when unlimited) and telemetry conflated the two. A
distinct 'overflow' status gets its own warn naming the actual cause; the
function's CFG layer is explicitly unaffected.

Finding P3 (stride-bail diagnosis) of review 4471987625 (#2160).

* perf(cfg): cache the nearest enclosing scope per node during the prescan

resolve() walked the AST parent chain per identifier — O(expression nesting
depth), quadratic on deeply-chained single-statement expressions in generated
code (not caught by any bench scenario, which scale blocks/bindings, not
expression depth). The prescan already visits every node once, so caching its
innermost scope makes phase-2 resolution O(scope-chain). Behavior-identical;
the parent-chain walk survives as fallback for prescan-unvisited nodes.

Finding P2 (resolve depth walk) of review 4471987625 (#2160).

* fix(cfg): stop harvesting initializer-less var declarators as defs

A bare `var x;` mid-function is hoisted and writes nothing at runtime, but
the harvester recorded a def — fabricating a kill of the live def in the
same block: `x = source(); var x; sink(x)` lost the source→sink fact (a
reaching-defs false negative). Defs now require an initializer for
variable_declaration declarators; let/const genuinely initialize and keep
their def.

Finding P2-5 of review 4471987625 (#2160).

* fix(cfg): unwrap parenthesized/non-null lvalue wrappers before def detection

`(x) += 1` and `(x)++` gated the def on the node type being exactly
'identifier', so the parenthesized form fell to the uses-only branch — the
def (and its kill) silently vanished. Wrappers that don't change the lvalue
(parenthesized_expression, TS non_null_expression) now unwrap at all three
lvalue sites.

Finding P3 (parenthesized lvalues) of review 4471987625 (#2160).

* fix(cfg): conditionally-evaluated defs are MAY-defs — gen without kill

A def inside a short-circuit right operand, ternary arm, logical assignment,
or switch case test was harvested as a must-def; the solver's total kill then
erased the prior def on the not-taken path — a taint false negative on core
idioms (`if (a && (x = clean())) {} sink(x)` lost source→sink;
`cached ?? (cached = load())` likewise). StatementFacts gains an optional
mayDefs field (conditional-context tracking in the harvester); the solver's
per-block GEN carries {set, kills} so a may-def UNIONS into the binding's set
instead of replacing it, in both the transfer and the statement sweep; the
emit fact-guard validates mayDefs indices; switch case tests harvest via the
conditional path.

Finding P1-1 of review 4471987625 (#2160).

* fix(cfg): model labeled statements generically — break keeps its real continuation

A break to a label the visitor didn't model (labeled non-loop block, the
OUTER label of a doubly-labeled construct) routed to EXIT, REMOVING the only
path that kept the pre-jump def live — a reaching-defs false kill the in-code
comment wrongly called sound. Loop/switch frames now carry their full label
LIST (`outer: inner: for` resolves both); a labeled non-loop statement gets
a break-target frame whose target is a synthesized join after the body; an
unlabeled break never matches a block frame; labels compose with finalizer
threading (a labeled break crossing a finally still threads it).

Finding P1-2 of review 4471987625 (#2160).

* fix(cfg): throw edges deliver ALL of a block's defs to the handler

The throw contribution was IN ∪ OUT — entry and final states only. The
intermediate defs of a multi-def coalesced block were invisible to the
handler, though they are exactly what the catch observes when a later
statement throws: `try { x = parse(a); x = normalize(x); } catch { sink(x) }`
lost the parse→sink fact (normalize throwing delivers parse's value). Throw
predecessors now contribute IN(from) ∪ allDefs(from) — a static per-block
all-def-sites map — which subsumes OUT; monotone and deterministic.

Finding P1-3 of review 4471987625 (#2160).
2026-06-11 05:49:39 +01:00
Gergő Magyar
5bf8a17cd5
feat(ingestion): add control-flow-graph layer for TS/JS (#2081) (#2099)
* feat(cfg): language-agnostic CFG construction core (#2081)

U1 of M1 (CFG layer). Plain JSON-serializable CFG data model (BasicBlockData/
CfgEdgeData/FunctionCfg — must survive the worker→main boundary + ParsedFile
store), a CfgBuilder accumulator (leaders→blocks→edges, synthetic ENTRY/EXIT,
idempotent edges), a ControlFlowContext (break/continue/switch + labeled-jump
target stacks), and a TraversalResult ({entry, dangling exits}). AST-agnostic
and unit-tested on the classic control-flow topologies (if/else, while back-edge,
mid-block return, labeled break/continue) the S2 spike validated; reachability
helper backs the R9 property test.

* feat(ingestion): U2 — TS/JS CFG visitor over tree-sitter AST (#2081)

Add the TS/JS CfgVisitor that walks a function's tree-sitter AST and drives
the U1 CfgBuilder to produce a serializable FunctionCfg. One visitor covers
both languages (shared grammar family).

Handles the classic CFG hazards explicitly (R2, R10):
- loops allocate a dedicated loop-exit block so `break` has a concrete target
  before the loop's successor is known; `continue`/back-edge close the loop
  (while, do-while, C-for with init-once + increment-as-continue-target,
  for-in, for-of)
- switch fallthrough falls out naturally: a non-breaking case yields exits we
  wire to the next case as `fallthrough`; a breaking case wires to the switch
  exit via ControlFlowContext
- try/catch/finally: normal completion AND exceptional flow both route through
  finally (post-domination); a conservative exceptional edge models that the
  protected region may raise to its handler (not just explicit `throw`)
- labeled break/continue resolve against the labeled loop's frame
- early return/throw wire to EXIT/handler and terminate their block

19 hazard tests (one per construct) + AC1 10-function fixture; all green.
No change to the committed U1 core or ControlFlowContext.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(ingestion): U3 — worker CFG build + cfgSideChannel + cache coherence (#2081)

Run the CFG visitor in the parse worker (where the AST lives), serialize the
per-function CFG onto a new ParsedFile.cfgSideChannel, and keep it coherent
across the disk-backed store and the warm/durable parse cache (R3, R4).

- gitnexus-shared parsed-file.ts: add `cfgSideChannel?: unknown` as a DISTINCT
  field from captureSideChannel (different producer/consumer/lifecycle; plain
  JSON data — blocks/edges deliberately lack the `nodeId` the store's interning
  reviver keys on, so no mis-interning).
- cfg/types.ts + visitors/typescript.ts: add CfgVisitor.isFunction so the worker
  enumerates functions (and applies the line budget) by a cheap node-type test.
- cfg/collect.ts (new): collectFunctionCfgs walks the tree, builds one CFG per
  function (nested included), applies maxFunctionLines (over-cap = skipped).
- language-provider.ts: add `cfgVisitor?: CfgVisitor<SyntaxNode>` hook;
  typescript.ts attaches it to both the TS and JS providers (shared grammar).
- parse-worker.ts: read pdg + pdgMaxFunctionLines from workerData (read once at
  init — the worker never sees PipelineOptions), gate the build, attach
  cfgSideChannel alongside captureSideChannel.
- parse-cache.ts: bump SCHEMA_BUMP 4→5 (ParsedFile shape changed) and fold the
  pdg flag into computeChunkHash so a pdg-off cached chunk is NOT reused on a
  --pdg run (the #2038-class warm-cache trap). Default path keeps its keys.
- worker-pool.ts + parse-impl.ts + pipeline.ts: thread pdg/pdgMaxFunctionLines
  PipelineOptions → WorkerPoolOptions → workerData, and into the chunk-hash key.

9 boundary tests: collect contract, JSON round-trip identity (no AST leakage),
the pdg cache-key guard, the line-cap skip, and the no-visitor gate. Full CFG
suite (U1+U2+U3) green; build clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(ingestion): U4 — emit BasicBlock + CFG within scope-resolution (#2081)

Emit persisted BasicBlock nodes + CFG edges from each ParsedFile's worker-built
cfgSideChannel, INSIDE scope-resolution's Phase-4 graph emission — the last
point where the worker-built CFGs are loaded (emitParsedFiles carries the
channel; the disk store is cleared right after the orchestrator returns). This
is the architecture the doc-review corrected to: a standalone post-`mro` phase
(the issue's literal subtask) provably reads empty data (KTD1).

- cfg/emit.ts (new): pure emitFileCfgs(graph, cfgs, maxEdgesPerFunction, onWarn).
  BasicBlock id = `BasicBlock:<filePath>:<functionStartLine>:<blockIndex>`
  (KTD3 — funcStart disambiguates blocks across functions in one file; no
  `name` column). CFG edge = CodeRelation type 'CFG' with the edge KIND
  (seq/cond-true/…) in `reason` (kinds can't be their own edge type). Per-
  function edge cap stops at the cap and warns with the dropped count — no
  silent truncation (R6/KTD6).
- run.ts: pdg-gated emit pass over emitParsedFiles after emitPostResolutionEdges
  (store still live); RunScopeResolutionInput gains pdg + pdgMaxEdgesPerFunction.
- phase.ts: thread ctx.options.pdg / pdgMaxEdgesPerFunction into the call.
- pipeline.ts: PipelineOptions.pdgMaxEdgesPerFunction.

6 tests: node/edge shape (KTD3 id, no name, type='CFG', kind in reason),
cross-function id uniqueness, AC2 reachability-from-ENTRY property, the edge
cap's no-silent-truncation contract, and empty-input no-op. Flag-off
byte-identity + full runPipelineFromRepo round-trip land in U7. Build clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(cli): U5 — `--pdg` opt-in plumbing (CLI + .gitnexusrc → both sinks) (#2081)

Expose the CFG/PDG substrate as an opt-in and thread it from CLI/.gitnexusrc to
the single source of truth (PipelineOptions.pdg), which fans out to BOTH sinks
already wired in U3/U4: the worker build gate (workerData.pdg) and the
scope-resolution emit gate. Off by default (R7).

- cli/index.ts: `--pdg` commander flag.
- cli/analyze.ts: AnalyzeOptions.pdg + pass `pdg` into runFullAnalysis options.
- cli/analyze-config.ts: KEY_SPECS `pdg` (boolean) so `.gitnexusrc { "pdg": true }`
  normalizes and a non-boolean value fails closed with GitNexusRcError.
- core/run-analyze.ts: AnalyzeOptions.pdg → runPipelineFromRepo({ pdg }).

(The internal PipelineOptions/WorkerPoolOptions/workerData fields + the
parse-cache key fold landed in U3/U4; this unit adds the user-facing surface.
The budget knobs stay at internal defaults for M1.)

Tests: analyze-config pdg normalization + non-boolean rejection; opt-in.test.ts
covers the CLI/file merge precedence and that pdg perturbs the chunk-dispatch
key. The full worker-build + main-emit round-trip is the U7 integration test.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(ingestion): U7 — CFG acceptance fixtures, parity, end-to-end + docs (#2081)

Acceptance criteria for the M1 CFG layer:
- AC1: a 10-function TS fixture's CFG node/edge set matches a committed snapshot
  (cfg-snapshot.test.ts).
- AC2: every BasicBlock is reachable from its function ENTRY (property test over
  the emitted graph; the fixture has no dead code).
- AC3: hazard fixtures lock the classic-bug coverage — try/throw/finally
  post-domination + labeled break/continue resolution.
- AC4: the existing pipeline-graph-golden test stays byte-identical with --pdg
  off (verified; no UPDATE_GOLDEN), proving the opt-in adds zero default-run
  drift.
- End-to-end (pipeline-pdg.test.ts): runPipelineFromRepo({ pdg: true }) on a
  tiny repo emits BasicBlock nodes + CFG edges with both endpoints present —
  the true both-sinks proof (worker builds → store → scope-resolution emits);
  the default run emits zero.

Docs: CHANGELOG M1 entry, ARCHITECTURE "Optional CFG/PDG emission" subsection
(why emit is in-phase, not post-mro), README CFG language-support note.

Full CFG suite (U1–U7): 56 tests green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(ingestion): drop unused helper in cfg-snapshot test (#2081)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(review): apply ce-code-review autofix feedback (#2081)

Review (10 reviewers) confirmed OFF-path byte-identity (adversarial + golden)
and found defects all within the --pdg path. Fixes:

- P1 same-line BasicBlock id collision: add a start-column disambiguator to
  FunctionCfg + the id (`BasicBlock:<file>:<line>:<col>:<idx>`) so two functions
  sharing a start line no longer collide under first-writer-wins addNode.
- P1 worker crash-cascade: per-file try/catch around collectFunctionCfgs so a
  CFG-build throw cannot escape to the language-group catch and silently drop
  every remaining file in the group.
- P2 edge-cap drop now logs unconditionally (input.onWarn is validator-gated/
  silent in prod) — upholds the no-silent-truncation guarantee.
- P2 Array.isArray guard before the cfgSideChannel cast in run.ts.
- P2 maxFunctionLines default: worker applies DEFAULT_PDG_MAX_FUNCTION_LINES=2000
  when unset; caps forwarded through run-analyze AnalyzeOptions (closes the
  server-path drop).
- P3 README duplicate paragraph removed; `0`-vs-default docstrings corrected;
  CLI --pdg flag made language-neutral; reachableBlocks JSDoc corrected.
- Documented the break-through-finally + stacked-label CFG limitations.
- Tests: same-line id-collision regression, standalone throw→EXIT, dead-code-
  after-return, async/generator/method coverage, strengthened labeled-continue.

Refuted: the HTTP-500 getNodeQuery finding — M0 already shipped the BasicBlock
branch + name-floor (R12/web-safety handled).

CFG + analyze-config suites: 95 tests green; golden parity (AC4) byte-identical.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(ingestion): benchmark CFG construction + O(n) block-text accumulation (#2081)

Closes the M1 review's requires_verification perf gap ("no benchmark for
collectFunctionCfgs; a wall-time + cfgSideChannel byte-size regression gate
would catch the extendBlock concatenation before kernel scale").

- bench/cfg/measure.mjs (new): build-free tsx harness timing collectFunctionCfgs
  (parse once, reuse the tree) across three scaling scenarios — straight-line
  (extendBlock path), many-functions (collect walk), branchy (block/edge growth)
  — at 500→2000. Reports a wall-time scaling ratio AND a cfgSideChannel
  byte-size ratio, plus an order-independent sha256 over the emitted blocks/edges
  as the behavior gate. `--check` compares both ratios + the fingerprint against
  bench/cfg/baselines.json; mirrors the scope-capture / python-scope harnesses.
- .github/workflows/ci-tests.yml: run the gate on every test job (build-free,
  alongside the existing scope-capture guards) so an O(n^2) re-regression fails CI.
- cfg-builder.ts: structural fix for the one real hotspot the bench surfaced —
  accumulate basic-block text as fragments joined once in finish(), instead of
  concatenating onto a growing string per coalesced statement (O(n^2) → O(n)).
  Behavior-identical (the CFG fingerprint + the AC1 snapshot are unchanged).

Measured (post-fix): time ratios straight-line ~1.3, many-functions ~1.0,
branchy ~1.1 (all sub-quadratic; a true O(n^2) would be ~4.0). cfgSideChannel
bytes scale linearly (~1.0-1.04). 60 CFG tests green; build clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(ingestion): add memory + disk growth gates to the CFG benchmark (#2081)

Extend bench/cfg/measure.mjs beyond wall-time to the two other scalability
dimensions that matter at kernel scale:

- DISK growth: utf8 byte size of the serialized cfgSideChannel — exactly what a
  --pdg run writes onto every ParsedFile shard (durable store + parse cache).
- MEMORY growth: retained JS heap of the cfgSideChannel payload, measured by the
  release-delta method (heap held minus heap after dropping it) — robust to
  pre-existing garbage and dead-stable run-to-run. Needs `node --expose-gc`;
  without it the heap metric is null and its gate is skipped (local runs still
  work). ci-tests.yml now passes --expose-gc so the heap gate runs in CI.

Both gated on linear scaling in baselines.json (disk_bytes_budget / heap_budget
1.2-1.3). Measured: disk ~1.0-1.04, retained heap ~0.87-1.0 — both linear
(~1KB/function each; ~2MB heap / 1.6MB disk at 2000 functions, --pdg only).
Bumped REPS 7->15 to stabilize the noisier time signal and widened the coarse
time tripwire budgets (the disk/heap gates carry the tight regression detection).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): address tri-review + CFG-expert findings (#2081)

Corroborated findings from the tri-review (Codex + CE personas + GitNexus swarm
+ a CFG/program-analysis domain-expert lane). The OFF-path stays byte-identical;
all fixes are within the --pdg path or the benchmark.

- [Codex+CFG-expert] Exceptional `throw` edges now wire EVERY block in a try's
  protected region to the handler, not just the body ENTRY. A branched try body
  (`try { if (x) { use(t); } } catch`) previously left interior blocks with no
  path to `catch` — a taint false-negative into the handler for the M2 PDG pass.
- [Codex+CFG-expert] An unresolved labeled jump (a stacked outer label or a
  labeled non-loop block) now routes to the function EXIT instead of leaving a
  dangling sink — restores the single-exit invariant post-dominator/PDG
  computation needs.
- [Codex] computeChunkHash now folds pdgMaxFunctionLines/pdgMaxEdgesPerFunction
  into the chunk key (not just the pdg boolean), so a warm cache built under one
  cap is never served to a run with a different cap (#2038 class, extended to
  the budgets). Adds PdgCacheKey; boolean form kept for back-compat.
- [perf] visitTry resolves catch/finally in a single namedChild pass (the double
  `namedChildren.find` allocated two throwaway arrays).
- [adversarial] The bench `straight-line` scenario now runs at 2000->8000:
  output is a constant 4 blocks so disk/heap can't see the concat path, and at
  the old N a genuine O(n²) was masked by V8 cons-strings. Verified at the new N:
  the array-join impl ~1.0, a rope-optimized `+=` ~1.0 (correctly not flagged),
  a real O(n²) (re-join-every-append) ~3.8 — budget tightened 2.0->1.5.
- [adversarial+Codex] The bench `--check` now FAILS LOUDLY when run without
  `--expose-gc` instead of silently skipping the retained-heap gate.
- Doc: re-labeled the finally-bypass as a SOUNDNESS (false-negative) limitation
  tracked for M2, not mere "precision."

3 new regression tests (branched-try interior→handler, stacked-label→EXIT,
cap-fold key). 99 CFG tests pass; build clean; bench gate green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(parse-cache): clarify that SCHEMA_BUMP still invalidates caches once (#2099 F6)

The computeChunkHash comment claimed pdg-off warm caches "survive this
change untouched" — true for the key FORMAT, but misleading as an
upgrade-behavior promise: SCHEMA_BUMP 4→5 changes PARSE_CACHE_VERSION
and both stores hard-invalidate on it. Separate the two facts so the
next cache change isn't reasoned about from a false premise.

Review finding F6 (P3) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): correct for-loop back-edge kinds when no increment clause (#2099 F5)

A for with a body but no increment emitted an unconditional
header→header 'loop-back' self-edge (a path that never executes the
body) while the real back-edge body→header was labeled 'seq'. Any
consumer identifying loops via reason='loop-back' picked the phantom
edge and excluded the body from the natural loop.

Gate the self-edge on the body being absent (the one case where the
header genuinely re-tests itself) and carry 'loop-back' on the body's
exits when they ARE the back-edge, matching visitWhile/visitForIn.

Review finding F5 (P3) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): treat an empty catch clause as a real handler (#2099 F2)

visitTry keyed handler semantics off the traversal result — null for an
empty body, since visitSeq([]) returns null — instead of the syntactic
clause. An empty `catch {}` was therefore treated as NO catch: the
swallowed exception escaped to the outer handler/EXIT, the no-catch
re-propagation misfired past finally, and code after a try whose body
always throws became unreachable from ENTRY — a hard false-negative
source for the M2 taint pass, on an extremely common pattern.

Synthesize one empty block spanning the clause (entry == sole exit)
when the catch body traverses to null, before the protected region is
walked. Exception flow lands in it and rejoins the normal continuation;
all downstream wiring (handler selection, finally routing, the !catchRes
re-propagation gate) operates on the syntactically-correct shape.

Review finding F2 (P2, reproduced) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(cfg): guard CFG emission per element, not just per outer array (#2099 F4)

The cfgSideChannel guard checked only Array.isArray before casting to
FunctionCfg[] — its own comment promised a wrong-shape value would
'skip emission, not throw a TypeError mid-graph-build', but a malformed
ELEMENT sailed through. Worse, the obvious-looking failure shape never
throws at all: emitFileCfgs string-templates any edge endpoint into the
BasicBlock id and graph inserts are no-throw, so a non-integer endpoint
silently became a dangling 'BasicBlock:…:undefined' edge that degrades
the DB rel-pair COPY to row-by-row fallback inserts much later.

Layered fix matching house precedents (parsedfile-store reviver,
worker-side per-file catch): a per-element shape+content predicate
(arrays + integer edge endpoints) that warns and skips malformed
elements while valid siblings still emit, plus a per-file try/catch
backstop for shapes that genuinely throw (e.g. a null inside blocks).

Review finding F4 (P3) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse-cache): drop emit-time edge cap from the pdg chunk key (#2099 F3)

pdgMaxEdgesPerFunction is applied exclusively in emitFileCfgs during
scope-resolution on the main thread — the worker never receives it
(workerData carries only pdg + pdgMaxFunctionLines), so the cached
worker output is byte-identical across cap values. Folding it into the
chunk key (added by a prior review round) only converted a free knob
into a repo-sized cost: every cap change forced a full re-parse and a
durable-store rewrite of unchanged data.

Keep pdg + maxFunctionLines (genuinely worker-visible, shape the cached
cfgSideChannel) and document the classification test in the PdgCacheKey
doc comment so the next option gets sorted deliberately: worker-shard
inputs go in this key; persisted-graph-only inputs belong in the
RepoMeta pdg stamp (F1). Chunks written under the old ns string miss
once and prune — no migration needed.

Review finding F3 (P2) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(analyze): record pdg config in RepoMeta; force full writeback on mode flip (#2099 F1)

Running --pdg against an already-indexed repo silently persisted ~zero
CFG: incremental eligibility had no pdg term, RepoMeta recorded no
mode, and extractChangedSubgraph keeps only changed-file nodes — on a
no-change --pdg re-run every freshly built BasicBlock was dropped from
the written subgraph ('Incremental: changed=0', run succeeds, zero
rows). The converse flip left zombie mixed-coverage blocks only --force
could clean. Worse, a clean-tree flip hit the alreadyUpToDate fast path
and never ran the pipeline at all.

- RepoMeta gains an additive-optional pdg stamp ({maxFunctionLines,
  maxEdgesPerFunction}, resolved values; absent ≡ pdg-off, which covers
  every legacy meta). No INCREMENTAL_SCHEMA_VERSION bump — that would
  force a one-time full rebuild for everyone. The end-of-run meta is a
  fresh literal, so omitting the field on a pdg-off run is what clears
  the stamp after an on→off flip.
- pdgModeMismatch (pure, exported) compares the resolved triple; the
  flip check sits before the fast path and always logs its notice (not
  gated on options.force — --skills implies force with no message of
  its own), naming the .gitnexusrc pdg key that pins the mode.
- The full-rebuild branch now writes the incrementalInProgress dirty
  flag (toWriteCount: 0 sentinel) before the wipe whenever a prior meta
  exists, mirroring the incremental branch. This closes the crash
  window where a rebuild dying between the bulk load and saveMeta left
  meta/DB inconsistent and the fast path certified zombie (or missing)
  CFG rows indefinitely — and incidentally closes the same pre-existing
  hole for user --force runs. Recovery log reworded accordingly.

Tests: pdg-mode-flip.test.ts (real git + LadybugDB; primary assertion
is a direct BasicBlock table count — meta.stats aggregates
nondeterministic Community/Process rows) covering off→on, steady-state
fast path, on→off zombie cleanup, cap-change rebuild, and dirty-flag +
flip composition; pure-helper tests for default resolution and the
0=unlimited carve-out.

Review finding F1 (P1) of PR #2099 tri-review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 19:26:45 +01:00
azizur100389
e26002c37a
fix(cpp): suppress deleted overload winners (#2094)
* fix(cpp): suppress deleted overload winners

* test(cpp): update scope capture fingerprint

---------

Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-10 18:41:30 +01:00
Gergő Magyar
2870aa6248
fix(grammars): load vendored tree-sitter grammars from vendor/ by absolute path (#2111) (#2144)
* fix(grammars): load vendored tree-sitter grammars from vendor/ by absolute path (#2111)

The recurring Windows `EPERM: operation not permitted, symlink` (errno -4048)
when adding the MCP server to Antigravity is NOT the #2101/#2110 module-load
crash — it is an install-time arborist failure during the `_npx` reify that the
MCP client triggers on every `npx gitnexus` launch.

Root cause: the `postinstall` materialize step copied each vendored grammar
(`vendor/tree-sitter-{c,dart,proto,swift,kotlin}`) into
`node_modules/gitnexus/node_modules/tree-sitter-*` as a real package so runtime
`require('tree-sitter-dart')` would resolve. Those packages are in no dependency
graph, so every subsequent npm/npx reify treats them as **extraneous** and
prunes/relocates them — on Windows the relocation goes through
`@npmcli/move-file`'s symlink path and throws EPERM (symlinks need Developer
Mode/admin), and on every OS the 2nd run silently deletes the grammars. This is
the same class as #1728, which the materialize step itself claimed to have
fixed.

Fix (the prebuildify + node-gyp-build ecosystem pattern): never copy grammars
into node_modules. Load each by absolute path from `vendor/<name>` via the new
`requireVendoredGrammar` helper — the grammar's own `bindings/node` runs
`node-gyp-build(<dir>)` and loads the committed `vendor/<name>/prebuilds/
<platform>-<arch>/…` directly (all 5 ship all 6 tuples). vendor/ is inside the
package but not a node_modules subtree, so arborist never sees the grammars and
the reify is idempotent — no EPERM, no silent deletion.

- new src/core/tree-sitter/vendored-grammars.ts (requireVendoredGrammar /
  vendoredGrammarDir / VENDORED_GRAMMAR_PACKAGES; VENDOR_ROOT stable in dev+dist)
- route all consumers through it: parser-loader, parse-worker, grpc proto,
  include-extractor (C), http-patterns kotlin, cli optional-grammars probe
- postinstall drops the materialize step; build-tree-sitter-grammars.cjs builds
  in-place under vendor/ (gitignored) and deletes materialize-vendor-grammars.cjs
- tests + grammar-introspection helper load grammars from vendor/ too (single
  source of truth); new vendored-grammars.test.ts guards against reintroducing a
  bare `require('tree-sitter-<vendored>')`

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(grammars): throw on a non-vendored name in requireVendoredGrammar

Drift guard (PR #2144 review, P3): validate the argument against
VENDORED_GRAMMAR_PACKAGES and fail loudly on an unknown name, so the three
grammar lists (package set / CLI probe / build registry) drifting out of sync
surfaces as a clear error instead of a confusing absolute-path require miss.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(grammars): prepack guard against stray vendor/<g>/build/ shadowing prebuilds

Publish hygiene (PR #2144 review, P2). Now that build-tree-sitter-grammars.cjs
source-builds into vendor/<name>/build/, a stray build dir would ship in the
tarball (files:["vendor"] overrides .gitignore/.npmignore) AND shadow the
committed prebuild — node-gyp-build resolves build/Release before prebuilds/.
assert-publish-grammar-coverage.cjs (prepack) now fails `npm pack` if any
vendor/*/build exists (findStrayBuildArtifacts), with a clear `rm -rf` fix hint.
Adds unit coverage for the new pure function.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(grammars): harden the #2111 no-bare-require regression guard

PR #2144 review (P2). The guard regex missed dynamic import(), side-effect
`import 'x'`, /subpath, and backtick loads, and only scanned src/. It now covers
every node_modules-forcing form (single/double/backtick quotes, optional
subpath), scans test/ too (excluding fixtures and the guard file itself), drops
the `//`-substring false-negative (leading-comment-only heuristic), and adds a
self-test asserting every load form is caught while prose mentions and
tree-sitter-cpp are ignored.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(grammars): correct stale vendored-grammar comments

PR #2144 review (P3). kotlin/query.ts called tree-sitter-kotlin an
"optionalDependency" — it is vendored and loaded from vendor/ by absolute path
(#2111). proto.ts now states its remaining `_require` is only for the real
`tree-sitter` dependency, not a vendored grammar (which goes through
requireVendoredGrammar). Comment-only; no behavior change.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 14:20:42 +01:00
Gergő Magyar
3d30b94c46
fix(parse): survive non-cloneable worker results so large-repo analyze doesn't crash (#2112) (#2135)
* fix(parse): survive non-cloneable worker results so large-repo analyze doesn't crash (#2112)

A parse worker delivers its accumulated result to the main thread via
postMessage, which structured-clones the payload synchronously on the
worker thread and throws a DataCloneError on the first value it can't
serialize. The reporter's case was a node `properties` value pointing at
a native `toString`. The worker re-posted the throw as {type:'error'},
the pool counted it as a worker death, and under
GITNEXUS_WORKER_POOL_SIZE=1 the same graph re-threw on every respawn
until the slot's budget was exhausted and the whole parse phase aborted
-- defeating even the conservative single-worker workaround.

Add a clone-safety net at the worker result boundary. On a clone failure
the worker isolates the offending file, strips the non-cloneable value
from a plain extraction record (keeping the record -- strictly-missing
data, never wrong) or drops a whole ParsedFile so scope-resolution
re-derives it on the main thread with intact edge data, records the
affected paths on the result, warns naming the field + file so the leak
is diagnosable, and re-posts. Healthy runs are byte-identical: the net
runs only after a real DataCloneError, so there is zero overhead on the
fast path. Skipped paths surface via the parsing processor alongside the
skipped-language telemetry. The strip drops the same values the store
path's JSON.stringify already silently removes, so store/no-store runs
converge.

Scope: PR-1 -- failure mode C, the deterministic POOL_SIZE=1 killer. The
timeout/native-abort graceful-degradation cascade (failure modes A & B)
is coupled to downstream-exclusion + a hard worker watchdog and is
tracked as follow-up work.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse): fail-closed clone-safety recovery + bound recursion depth (#2135 review)

The clone-safety recovery path could re-arm the #2112 worker-death cascade it
was built to prevent: in postResultCloneSafe the sanitizer call and the re-post
sat outside the try/catch, and containsNonCloneable/stripNonCloneable recursed
with a cycle guard but no depth bound. A throw inside the sanitizer (a RangeError
from a deeply-nested record, reproduced at depth >=3000) escaped to the message
handler's {type:'error'}, which under GITNEXUS_WORKER_POOL_SIZE=1 is the
respawn-budget-exhaustion abort.

Wrap the sanitizer + re-post in their own try/catch so any throw fails closed to
a primitive-only {type:'error'} deliberately, and thread a MAX_CLONE_DEPTH bound
through both scan/strip functions so an over-deep subtree is treated as
non-cloneable (dropped/undefined) instead of overflowing the stack. The
isStructuredCloneable catch-all is left broad on purpose — it bounds
structuredClone's own internal recursion in the non-plain-object probe.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse): harden clone-safety against throwing getters and detached buffers (#2135 review)

Two sanitizer-defeat vectors let the re-post throw a DataCloneError again:

- A throwing getter on a record: containsNonCloneable/stripNonCloneable read
  obj[key], so a getter that throws escaped the scan/strip pass. Read defensively
  — a throwing property read is treated as non-cloneable (scan returns true,
  strip drops the property).
- A detached ArrayBuffer/TypedArray: both passed buffers/views through
  unconditionally, but structuredClone rejects a detached one, so the re-post
  threw. Route buffers/views through the authoritative isStructuredCloneable
  probe instead. No byteLength heuristic — a legitimately empty new Uint8Array(0)
  also has byteLength 0 yet clones fine, so a length check would false-positive.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse): memoize stripped copies so DAG-aliased records aren't over-dropped (#2135 review)

stripNonCloneable carried a shared `seen` WeakSet and returned the ORIGINAL
(un-stripped) value on revisit. When a non-cloneable was reachable via two paths
(a DAG), the second path spliced the original function-bearing object back into
the output, so the rebuilt element failed the last-resort isStructuredCloneable
guard and the whole record was dropped as "unsalvageable" — contradicting the
"record kept, value stripped" contract.

Replace the WeakSet with a Map<object, stripped-copy>: allocate the empty copy,
memoize it before recursing into children (so cycles return the in-progress
copy), and return the memoized copy on revisit. DAG-aliased subtrees now collapse
to one shared stripped copy and are kept-and-stripped, not dropped. The array
branch moves from .map() to allocate-then-push so its identity can be
pre-inserted. Object Map/Set keys aren't identity-preserved across stripping —
acceptable because parse-result Maps are primitive-keyed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(parse): single-pass clone-safety scan preserving array identity (#2135 review)

makeWorkerResultCloneSafe scanned each dirty array twice — a field-level
whole-array containsNonCloneable probe, then a per-element pass — and always
reassigned the field. Fold into one per-element pass that builds the output
array lazily (copying the clean prefix only once the first dirty element
appears) and reassigns the field only when something changed. A fully-clean
array is now scanned once and keeps its referential identity; the clean prefix
of a dirty array is copied by reference. Behavior is otherwise identical
(failure-path-only code).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(parse): drop unused generic + pin clone-safe field names to keyof (#2135 review)

makeWorkerResultCloneSafe carried a generic `<T extends Record<string,unknown>>`
that was never load-bearing (it mutates in place and returns {skipped}), and the
call site passed untyped string-literal option sets — so renaming `parsedFiles`
or `skippedPaths` would silently disable the drop-whole / skip protection.

Drop the generic (plain `Record<string,unknown>` param) and type the option sets
at the call site as `Set<keyof ParseWorkerResult>`, so a field rename is now a
compile error. The `as unknown as Record<string,unknown>` widening stays — it's
the standard cast for a no-index-signature interface (TS rejects a single-step
`as`); the function genuinely operates structurally on the result's arrays.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse): keep the per-file reason in the clone-safety skip log (#2135 review)

The processor's skipped-file warning logged only the paths, dropping the
per-file reason the worker already attached — losing the distinction between a
recoverable "stripped N value(s)" and a whole-record "dropped" entry. Format each
entry as `path (reason)` so the aggregate line carries the diagnostic detail.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse): deterministic findFilePath attribution for ParsedNode (#2135 review)

findFilePath swept all child objects one level deep in Object.keys order, so a
ParsedNode could be attributed to a sibling child's path-like key instead of its
real path at properties.filePath. Check the known `properties` child first, then
fall back to the generic sweep, so node attribution is deterministic.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse): zero skippedPaths in the slim cache result (#2135 review)

slimParseWorkerResultsForCache spread the worker result without clearing the
clone-safety skippedPaths telemetry, so a sanitized result persisted its skip
list into the on-disk parse-cache shard. Replay already ignores the field; zero
it (like calls/assignments/parsedFiles) to keep shards lean and the intent
explicit.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(parse): exercise real postResultCloneSafe wiring + tighten RED control (#2135 review)

The integration GREEN worker re-implemented postResultCloneSafe inline, so the
production wiring (the {type:'warning'} post + the skippedPaths append) had no
coverage, and the RED control asserted a bare .rejects.toThrow() that any
failure would satisfy.

Extract postResultCloneSafe into a side-effect-free module (post-result.ts) —
importing it from the parse-worker entry module would construct the parser, post
ready, and attach the real handler — and have the GREEN test worker import and
call the real one. Tighten the RED matcher to the actual abort contract
(/circuit breaker|consecutive failures|respawn budget|could not be cloned/),
which also documents that the raw poison result aborts via the pool's
consecutive-failure circuit breaker under POOL_SIZE=1.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse): recover the clone-safety net from any post failure, not only DataCloneError (#2135 review)

The V8 structured-clone research surfaced the net's one real correctness hole:
structuredClone invokes getters, and a getter that THROWS surfaces its own error
(a RangeError, etc.) — NOT a DataCloneError (confirmed against a real
MessageChannel). postResultCloneSafe gated recovery on isDataCloneError, so such
a throw re-threw past the sanitizer and re-armed, under POOL_SIZE=1, the
worker-death cascade the net exists to prevent.

Attempt the sanitize + re-post recovery for ANY first-post failure (the sanitizer
already reads properties defensively, so a throwing getter is dropped), falling
closed to a primitive-only {type:'error'} only if the re-post still fails. Adds
an integration case: a node with a throwing getter is recovered and delivered,
not re-thrown.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(parse): name the exact offending key path in the clone-skip diagnostic (#2135 review)

The clone-safety net's skip reason named only the array field + file ("stripped
1 value from nodes"), not the offending property key — which is precisely why
the original #2112 leak stayed unpinned. Thread a dotted key path through
stripNonCloneable (recording each stripped value's path: properties.toString,
meta.data[3], …) and surface the first few in the reason ("from nodes:
properties.toString"). Now a single log line — or the contract/strict checks —
names the leaking property, so a residual runtime escape can be fixed at source.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(parse): clone contract — a representative ParseWorkerResult is structured-cloneable (#2135 review)

Shape-regression guard: builds a representative ParseWorkerResult (typed as the
real interface) and asserts isStructuredCloneable. Typing it as ParseWorkerResult
makes adding a new boundary field a compile error here until the test is updated,
and the runtime assert catches a field whose type regresses to a non-cloneable
shape — independent of language input.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(parse): strict-mode clone gate (GITNEXUS_STRICT_CLONE) — fail loudly instead of silent sanitize (#2135 review)

The runtime net's silent recovery in production is exactly what let the original
#2112 leak stay unpinned. Add an opt-in strict mode (GITNEXUS_STRICT_CLONE=1,
inherited by workers): on a clone failure, postResultCloneSafe THROWS with the
exact offending key path instead of sanitizing + delivering, so a leak
introduced by a future provider/extractor change fails loudly at its origin
(CI/dev) rather than being quietly stripped. Off in production, where the net
keeps the run alive.

Adds a self-contained integration case (sets the flag, asserts the poison run
rejects with the key path) and skips the synthetic-poison suite under a global
strict run (its value there is running the REAL-extractor integration tests
under strict). Wiring a strict CI lane (GITNEXUS_STRICT_CLONE=1 on a vitest
integration step) is left to the maintainer — it needs a green full-suite
verification and touches the protected workflow.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(server): don't ship pipelineResult across the analyze-worker IPC boundary (#2112)

The forked analyze worker reports completion to the parent over
child_process IPC, which uses Node's DEFAULT 'json' serialization
(api.ts forks with no `serialization:` option). `AnalyzeResult.pipelineResult`
is populated on every successful analysis and carries `pipelineResult.graph`
— the live KnowledgeGraph closure object. Sending the raw result is wrong
three ways: (1) the graph's nodes/relationships getters force-materialize
the entire graph into two arrays and JSON-stringify them on every analyze,
discarded immediately (a multi-hundred-MB no-op on a large repo — the #2112
scenario); (2) the graph's methods are own function properties that JSON
drops silently, so a surviving graph is a husk whose forEachNode() throws far
from the cause; (3) a BigInt/circular value anywhere in the payload makes
process.send throw TypeError synchronously — caught and re-sent as
{type:'error'}, mis-reporting a SUCCESSFUL analysis (DB already written) as a
FAILURE. This is the #2112 failure family on the server path, and unlike the
parse-worker result boundary it has no clone-safety net.

The parent (api.ts) reads only result.repoName; pipelineResult's real
consumers (CLI skill generation, cli/analyze.ts) call runFullAnalysis
in-process and never cross this fork. So project the result down to an
explicit JSON-safe allowlist of scalar fields. Typed as
Omit<AnalyzeResult,'pipelineResult'> so a future non-serializable field added
to AnalyzeResult fails to compile until handled here deliberately.

Found by the #2112 cross-process serialization-boundary audit.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(ingestion): Cloneable<T> + assertCloneable() compile-time clone-boundary guard (#2143)

The runtime clone-safety net is the production backstop; this is its
compile-time complement. The worker result is plain data except a few
`unknown`-typed sinks (a node's `properties` bag, the provider
`extractTemplateConstraints` / `collectCaptureSideChannel` hook returns) —
`unknown` lets a non-serializable value (a function, a leaked tree-sitter
SyntaxNode, …) cross the structured-clone boundary with no compile-time
guard. That is the structural hole #2112 leaked through.

`Cloneable<T>` is a homomorphic recursive mapped type that maps a function or
symbol member to `never`, so a struct carrying one is no longer assignable to
its own `Cloneable<T>`. `assertCloneable(value)` is a runtime identity (zero
cost) whose parameter is `T extends Cloneable<T> ? T : Cloneable<T>`, so a
clone-unsafe argument fails to compile, naming the offending key.

Because it is a homomorphic mapped type it preserves `interface` shapes and
`readonly` modifiers and needs NO index signature on the payload types — this
sidesteps the "closed interface is not assignable to a recursive
index-signature type" wall that blocked the original value-typed-`Cloneable`
attempt (the reason #2143 was deferred from PR #2135). The conditional
parameter type avoids the `T extends Cloneable<T>` circular-constraint error.

Tests: runtime identity contract, plus type-level @ts-expect-error assertions
(enforced by tsconfig.test.json) that a function/symbol member is rejected and
clean interface payloads are accepted. Applied to the real provider hooks in
the next commit.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(ingestion): guard provider clone-boundary hooks with assertCloneable (#2143)

Apply the compile-time guard to the provider hooks that feed the `unknown`-typed
worker-result sinks, so a future non-serializable value in their payloads is a
compile error at the source site rather than a runtime DataCloneError at the
worker post:

- C++  extractTemplateConstraints  (CppConstraintPayload)
- C++  collectCaptureSideChannel    (CppCaptureSideChannel)
- C    collectCaptureSideChannel    (CCaptureSideChannel)
- Kotlin collectCaptureSideChannel  (KotlinCaptureSideChannel)

The C++ template-constraint adapter previously returned `unknown`; it now
returns the concrete `CppConstraintPayload | undefined` and routes its payload
through `assertCloneable`. The side-channel hooks are wrapped at their provider
wiring sites. `assertCloneable` is a runtime identity, so behavior is unchanged
(C static-linkage + C++ constraint suites stay green); the guarantee is the
type-check — src tsc now proves every nested member of those real payload trees
is structured-clone safe.

Test: type-level assertions (enforced by tsconfig.test.json) that each concrete
payload type is `Cloneable<T>`, INDEPENDENT of the provider wiring — so the
regression is caught even if the assertCloneable wrapper is later removed.
Proven non-vacuous (a function-bearing type fails the same assertion).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse): scan an array's non-index own properties in the clone sanitizer (#2135 review)

structuredClone serializes an array's NON-index own-enumerable properties (e.g.
`arr.meta = fn`) and throws DataCloneError on a non-cloneable one. The clone
sanitizer's array branches iterated numeric indices only, so such an array was
waved through (containsNonCloneable returned false, makeWorkerResultCloneSafe
left the field unrewritten with skipped:[]) — the re-post then threw, fell
through to the fail-closed {type:'error'}, and re-armed the POOL_SIZE=1 cascade
the net exists to prevent.

Add isArrayIndexKey() and, in BOTH containsNonCloneable and stripNonCloneable
array branches (kept in lockstep), scan/strip the non-index own-enumerable keys
after the index loop. A cloneable non-index prop is carried onto the stripped
copy; a non-cloneable one is stripped and recorded. Not reachable from current
parse output (no extractor attaches non-index array props) — a defense-in-depth
hole closed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse): contain a throw inside the clone sanitizer instead of escaping to fail-closed (#2135 review)

findFilePath was documented "never throws" but read element properties
unguarded in its generic sweep — a throwing getter at a non-path key (or a
Proxy with a throwing ownKeys trap) threw out of makeWorkerResultCloneSafe, past
postResultCloneSafe's recovery, to the fail-closed {type:'error'} that under
POOL_SIZE=1 re-arms the cascade the net prevents. Likewise a Proxy with a
throwing getPrototypeOf trap throws inside containsNonCloneable's instanceof
checks.

- findFilePath/pathFromChild now read via safeGet (try/catch) and guard
  Object.keys, honoring the "never throws" contract.
- Each element's sanitize in makeWorkerResultCloneSafe is wrapped: a throw during
  scan/strip drops that one element (recorded as "sanitizer error") rather than
  sinking the whole result — so one pathological element can't fail-close the run.
- Corrected the makeWorkerResultCloneSafe JSDoc ("ONLY after a DataCloneError" →
  after ANY post failure, matching the caller) and documented the deliberate
  failure-path double-traversal (the non-allocating pre-scan is what preserves
  clean-element referential identity).

Tests: a throwing getter on a path-less element is stripped & delivered (not
escaped); a Proxy structural-trap element is dropped, clean siblings survive.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(parse): add a final cloneable postcondition gate to the clone sanitizer (#2135 review)

makeWorkerResultCloneSafe rewrote only ARRAY result fields, so a future
non-array sink (a nested object / Map result field) carrying a non-cloneable
value — or an array field whose own non-index property the element loop didn't
reach — would survive the sanitizer and throw on the re-post. Add a final
`if (!isStructuredCloneable(result))` gate that strips any remaining offending
field in place, making "the returned result is structured-cloneable" a hard
postcondition independent of future ParseWorkerResult shape. Failure-path-only
and a no-op once the array loop already made the result clean (the per-field
probe short-circuits every clean field, so it adds no work or skip entries then).

Tests: a function on a non-array result field is stripped & the result becomes
cloneable; the gate adds no skip entry when the array loop already cleaned up.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(parse): reject an `any`-typed member in the Cloneable<T> compile-time guard (#2135 review)

`Cloneable<any>` previously resolved to `any` (not `never`), so a payload with
an `any`-typed member — the most likely escape hatch, since `unknown` is already
blocked — passed `assertCloneable` with no compile error. Add an `IsAny<T>`
branch (the canonical `0 extends 1 & T` probe) as the FIRST arm so `any` resolves
to `never`, matching how `unknown` is already rejected. It must precede the
primitive arm: `any extends CloneablePrimitive` would otherwise resolve to `any`
and re-admit it.

The IsAny-first arm perturbs inference for a bare `undefined` literal argument
(T infers as `unknown` → never); real consumers pass `X | undefined` unions
(the provider hooks), which are unaffected (src tsc clean), so the runtime
identity test now uses a `string | undefined` value — the realistic shape.

Tests: an `any` member fails `assertCloneable` (@ts-expect-error, enforced by
tsconfig.test.json) and `Cloneable<any>` resolves to `never` at the type level.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(server): type the analyze-worker IPC projection as a Pick allowlist, not Omit (#2135 review)

`AnalyzeResultIpc = Omit<AnalyzeResult,'pipelineResult'>` kept every other field
in the type — including optional ones like `isPrimaryBranch?` — so the type
advertised a field the runtime allowlist never sends, and the doc-comment's
"a future field fails to compile until handled here" only held for REQUIRED
fields. Switch to `Pick<AnalyzeResult, …the six scalar fields…>`: the allowlist
IS the type, so the projection return literal is exhaustive by construction
(omitting a key is a compile error) and a new `AnalyzeResult` field is simply
absent from the wire until deliberately added here. `isPrimaryBranch` is
intentionally excluded (nothing consumes it server-side over this fork; the
parent reads only `repoName`).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(parse): remove the now-dead isDataCloneError export (#2135 review)

postResultCloneSafe recovers on ANY fast-path post failure and never inspects
the error type (a throwing getter surfaces a RangeError, not a DataCloneError —
gating on the type was the original net-gap bug). isDataCloneError has no
production caller; it was only exercised by its own unit test. Remove the
function and that test block.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(parse): use the exported SkippedPath type in parsing-processor (#2135 review)

The clone-safety telemetry accumulator inlined `Array<{path,reason}>` — a
structural duplicate of the exported `SkippedPath`. Import and use the canonical
type so a future rename of its fields is a compile error here instead of a silent
structural drift.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(parse): document the cloneable-return contract on the worker-boundary hooks (#2135 review)

extractTemplateConstraints and collectCaptureSideChannel return `unknown` and
feed values across the worker structured-clone boundary, but the hook contracts
didn't state the cloneability requirement — a future language implementing them
without care could leak a non-serializable value. Document that the return MUST
be structured-clone-safe and should be wrapped with assertCloneable, so the
guarantee is a compile error at the source (#2143).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(parse): assert the clone-skip telemetry surfaces in the GREEN integration case (#2135 review)

The GREEN clone-safety integration test asserted only graph content (all files
present), not that the skippedPaths / {type:'warning'} wiring its docstring
claims to cover actually fired. Capture the production logger via _captureLogger
and assert the sanitize telemetry names the offending file (poison.ts) AND the
exact stripped key path (properties.toString) — proving the worker's
skippedPaths append + the parsing-processor warning surfaced end to end.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(server): cover the IPC projection against a real KnowledgeGraph (#2135 review)

The IPC projection tests used a hand-built hostile object. Add a case that puts
a real createKnowledgeGraph (whose nodes/relationships getters would materialize
the whole graph under JSON.stringify) in pipelineResult and asserts the
projection drops it entirely — the serialized payload stays under 300 bytes
(a materialized 50-node graph would be thousands), with the scalar fields intact.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(parse): cover the unsalvageable-drop branch and the skippedPaths merge union (#2135 review)

Two untested clone-safety branches from the tri-review:

- "dropped unsalvageable": a dirty element whose stripped copy is STILL not
  structured-cloneable must be dropped, not delivered (else the re-post throws).
  Add a deterministic test (a non-plain member with a stateful getter that the
  strip-time probe sees clean but that turns into a function on the post-strip
  verification) asserting the element is dropped and the run survives.

- mergeResult skippedPaths union across sub-batches. mergeResult (and its
  appendAll helper) was module-private in the parse-worker ENTRY module, which a
  main-thread test can't import (it runs MessagePort setup). Extract it to a
  side-effect-free result-merge.ts (mirroring post-result.ts) and unit-test the
  union (including the `??=` target-init path), the skippedLanguages sum, and
  array append. parse-worker imports it back; verified the built worker still
  parses + merges via the real-worker integration path.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* style(parse): root-prettier format the clone-safety review-fix files (#2135 review)

Clears the failing `quality / format` CI gate (root prettier, not the
gitnexus-local config). Reformats the pre-existing #2143 wrapping lines in
c-cpp.ts + kotlin.ts plus the clone-safety review-fix files touched in this
PR-update (clone-safety.ts and the new/updated tests). Formatting-only — no
behavior change; tsc, the type-level assertions (tsconfig.test.json), and the
unit + integration suites stay green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(parse): avoid js/trivial-conditional in the type-level clone assertions (#2135 review)

CodeQL flagged the `expect(a && b && c).toBe(true)` lines in the type-level test
assertions as js/trivial-conditional: after type erasure the operands are
constant `true`, so the `&&` chain always evaluates the same. Replace the `&&`
chain with array equality (`expect([...]).toEqual([true, ...])`) — no
conditional, and the real assertions remain the `const x: …IsNever = true` /
`: IsCloneable<…> = true` annotations (enforced by tsconfig.test.json, which
fail to compile if a guard regresses).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 13:47:22 +01:00
Gergő Magyar
ae5ec94fd9
fix: stop impact()/route_map under-reporting blast radius (#2129, #1858, #1589/#1852) (#2136)
* fix(query): stop impact()/context() under-reporting blast radius (#2129, #1858)

Two read-side fixes to the "run impact before editing" safety workflow, both
about the tools rendering "I could not give a single confident answer" as
"no impact" — the most dangerous failure mode for a refactor-safety tool.

#2129 — ambiguous resolution no longer hides a real caller behind a bare
`impactedCount: 0`. When a bare name collides with several symbols, the resolver
returns `ambiguous`; previously the payload carried a flat `impactedCount: 0`,
so the real caller (which calls a *different* same-name node) was invisible
unless the user already knew to disambiguate. The ambiguous branch now runs a
bounded, summary-only BFS per candidate (capped at 6) and surfaces each
candidate's true count plus the top-level `maxImpactedCount` / `maxRisk`, ranked
most-impactful-first. `risk` stays `UNKNOWN` (ambiguity must not read as "safe"),
`impactedCount` stays 0 (no single resolved symbol). The BFS and edge storage
are unchanged — an empirical repro confirmed they are correct; the bug was
purely in how the ambiguous case reported. Disambiguation by uid still returns
the exact result.

#1858 — impact()/context() now carry an additive `epistemic` field. When the
queried symbol sits on an interface / indirection boundary (it implements or
extends an interface, or is one) whose consumers bind via a DI container or
dynamic dispatch, those callers are not traced to the concrete symbol, so the
count is a lower bound. The result is annotated `epistemic: 'lower-bound'` with a
human-readable `boundaries[]` note; a fully resolved leaf stays
`epistemic: 'exact'`. Aligned to the surviving numeric confidence model (the
0.85 IMPACT_RELATION_CONFIDENCE heritage floor), not the long-deleted
TIER_CONFIDENCE enum. Purely additive — no existing field or count changes.

Tests: impact-ambiguous-blast-radius (per-candidate surfacing + uid
disambiguation) and impact-epistemic-lower-bound (interface boundary →
lower-bound, resolved leaf → exact, context parity).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(routes): configurable fetch wrappers + faster consumer scan (#1589/#1852)

Closes the residual gap behind the now-merged #1852 (which fixed #1589): the
fetch-wrapper consumer scan only traced wrappers the parse phase auto-detected
as calling the bare global `fetch()`. A wrapper built on axios / a custom
client, or one named outside the built-in convention, was invisible — route_map
silently returned `consumers: []` (the exact "named outside convention → silent
zero" hole #1858 calls out as needing a backstop).

- Configurable wrappers: `.gitnexusrc` gains a `fetchWrappers: [...]` list
  (validated as identifier/member names, de-duped, capped, regex-safe), threaded
  AnalyzeOptions → PipelineOptions → routes phase. Configured names are unioned
  with the auto-detected ones; configured names alone now trigger the scan even
  when nothing was auto-detected.
- Perf (F3 from #1852's review): the cross-file scan built one RegExp per
  (file × wrapper) — O(files × wrappers). It now builds a single alternation
  regex per file (O(files)) and reuses file contents already read for handler
  extraction instead of re-reading them.

Tests: configurable-fetch-wrapper (axios-based `doRequest` wrapper — invisible
without config, traced with it) + .gitnexusrc `fetchWrappers` validation cases.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(review): harden the under-reporting fixes after adversarial review

Addresses findings from a reviewer-swarm pass over the two prior commits:

- CLI text false-safe (major): `formatImpactResult` (eval-server.ts) had no
  ambiguous branch, so `gitnexus impact <colliding-name>` printed "No
  dependencies found. This symbol appears isolated." for an ambiguous target —
  the exact false-safe #2129 exists to kill, defeating the JSON-layer fix at the
  text surface. Added an ambiguous branch (per-candidate blast radius +
  maxImpactedCount/maxRisk) and a lower-bound branch for both the zero-count and
  non-zero paths, mirroring the context formatter. Covered by new unit tests.
- Group fan-out dead work (major): impactByUid now passes skipEpistemic:true —
  the group cross-impact fan-out consumes only byDepth, so computing the #1858
  boundary per neighbor was wasted round-trips on the highest-volume path.
- Ambiguous all-UNKNOWN risk (minor): if every per-candidate probe fails, maxRisk
  now reports 'UNKNOWN' instead of falling to the 'LOW' seed (which would read as
  "safe").
- Candidate-probe cost (minor): the per-candidate summary BFS now sets
  skipEnrichment:true, bypassing the process/module aggregation passes it does
  not use.
- Epistemic latency (minor): computeEpistemicBoundary now runs concurrently with
  the impact BFS instead of as a trailing serial round-trip.
- Wrapper over-match (minor): the consumer-scan regex uses a `(?<![.\w$])`
  lookbehind instead of `\b`, so a bare configured name like `get` matches the
  free call `get('/x')` but not a member access `client.get(` (and `apiFetch`
  no longer matches `myApiFetch`).
- Boundary wording (nit): correct article ("a class" vs "an interface") and
  singular/plural ("1 implementation").

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(lint): drop unused describe import in new impact tests

The withTestLbugDB harness wraps describe internally, so the explicit
describe import was unused — unused-imports/no-unused-imports is an error
(not a warning) in the root eslint config, failing quality/lint.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(query): flag partialProbe when an ambiguous candidate probe fails (#2129 review F1)

The ambiguous-impact branch hoists maxRisk/maxImpactedCount so a colliding
name can't read as "isolated". But if a per-candidate BFS throws (e.g. DB
pool contention during the ≤6-way fan-out), it was recorded as
risk:'UNKNOWN', impactedCount:0 and silently masked by any benign sibling
success — maxRisk reduced to the benign tier and maxImpactedCount reflected
only successful probes. Track probeFailed and surface partialProbe:true
(additive, intentionally distinct from the traversal-interrupted `partial`
flag); formatImpactResult prints a lower-bound warning. Covered by a
formatter unit test (a natural in-harness probe throw is unreachable —
_runImpactBFS is fully self-catching under summaryOnly+skipEpistemic+
skipEnrichment).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(query): report the full match count when ambiguous candidates are truncated (#2129 review F11)

The ambiguous candidate list is capped at AMBIGUOUS_MAX_CANDIDATES (6), but
the CLI headline read the truncated `candidates[]` length — so a name
matching 9 symbols printed "6 symbols share this name" while the JSON message
stated the true count. Add an additive `totalCandidates` field carrying the
full match count, include a "showing N of M" clause in the message when
truncated, and have formatImpactResult report the full count. Covered by
formatter unit tests for the truncated and non-truncated cases.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(query): run context() epistemic probe concurrently with methodMetadata (#1858 review F2)

impact() overlaps the #1858 boundary probe with its BFS, but _contextImpl
awaited computeEpistemicBoundary serially after every other query. Start the
probe right after `symKind` is known (the earliest point it can — symKind
depends on the incoming/outgoing round-trips) so it runs concurrently with the
methodMetadata fetch, and await it at result assembly. Output is unchanged
(covered by the existing epistemic context() tests).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(query): flag a leaf interface as lower-bound in context() (#1858 review F3)

context() passed `symKind` to computeEpistemicBoundary, but symKind collapses
a single-resolved Interface to 'Class' (resolvedLabel is '' on the
single-candidate path), so the `symType === 'Interface'` self-boundary branch
never fired and a directly-queried leaf interface (implements nothing, but
consumed) was under-reported as 'exact'. Pass an interface-preserving type
(`resolvedLabel || sym.type || symKind`) instead — enrichCandidateLabels runs
before the single-candidate early return and patches sym.type to 'Interface',
mirroring impact()'s derivation. impact() was already unaffected. Covered by a
new context()-on-a-leaf-interface test.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(query): hoist epistemic relation-type lists + add USES to the allowlist (#1858/#2129 review F4, F5)

F4: promote computeEpistemicBoundary's function-local heritage/consumer
relation-type lists to module-level readonly constants
(EPISTEMIC_HERITAGE_RELATION_TYPES / EPISTEMIC_CONSUMER_RELATION_TYPES) next to
VALID_RELATION_TYPES / IMPACT_RELATION_CONFIDENCE, so a future heritage edge
type is visible to the probe. Kept as arrays (not Sets) because they bind as
Cypher params.

F5 (latent bug): USES is emitted (emit-references.ts) and already in the
default impact relTypes + context() queries, but was missing from
VALID_RELATION_TYPES — so impact({relationTypes:['USES']}) filtered to [] and
silently ran the full default traversal. Add it (0.5 confidence fallback,
matching FETCHES/WRAPS). Updates the security.test.ts allowlist assertions
(size 15→16, USES now valid).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(query): document the _runImpactBFS enrichment skip-flag composition (#1858/#2129 review F6)

The three skip-flags (skipPerSymbolEnrichment / skipEpistemic / skipEnrichment)
suppress distinct sub-phases and compose implicitly. Add a JSDoc block at the
opts type listing what each suppresses, the three real call patterns, and the
key interaction (skipEnrichment makes skipPerSymbolEnrichment a no-op).
Comment-only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(cli): genericize the shared string-array validation messages (#1589/#1852 review F7)

The shared `string-array` ValueKind hardcoded fetch-wrapper phrasing in three
messages (non-array, identifier-shape, empty-list). Since `source` already
names the config key, genericize all three so the shared normalizer carries no
fetchWrappers coupling — a future string-array config key gets sensible errors.
Test assertions updated to the new wording.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(query): type the ambiguous candidate summary + epistemicPromise (#1858/#2129 review F8)

The ambiguous per-candidate summary was read through `any`, so a rename of
_runImpactBFS's return fields would silently zero candidate counts. Name the
read shape ({impactedCount, risk, summary?.direct}) at the narrowing site, and
type epistemicPromise as the optional-epistemic union (the skip case's `{}`
subtype) — keeping computeEpistemicBoundary's own return precise (epistemic
required). Type-only; no runtime change.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(routes): trust validated fetchWrappers config, drop redundant re-filter (#1589/#1852 review F9)

`ctx.options.fetchWrappers` is already trimmed/shape-validated/de-duped/capped
in analyze-config.ts, so the routes-phase re-trim/re-typeof pre-pass was
redundant. Pass it straight through; the single Set-construction filter remains
to guard the auto-detected functionName values (which don't pass through
analyze-config). No behavior change — covered by the existing fetch-wrapper
route suites.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(routes): make the wrapper-call boundary Unicode-aware (#1852 review F10)

The consumer-scan lookbehind used ASCII `\w`, so a configured bare wrapper name
preceded by a non-ASCII identifier character (`caféget('/x')`) satisfied the
boundary and produced a spurious FETCHES edge. Switch to the `u` flag with
Unicode property classes (`(?<![.\p{L}\p{N}_$])`). Covered by a fixture
consumer (`cafédoRequest('/api/things')`) asserting no spurious edge.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(routes): count wrapper-scan line numbers incrementally (#1852 review F12)

The wrapper consumer scan computed each match's line number via
content.substring(0, match.index).split('\n').length — an O(matchIndex)
allocation per match. Matches arrive in ascending index, so accumulate
newlines with a running counter instead. 1-based line numbers are byte-identical
(covered by the existing fetch-wrapper route suites).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(test): keep the #1858 epistemic probe from skewing the impact-pagination mock

The impact-pagination mock counts every query containing `r.type IN` as a BFS
depth level. Once the #1858 epistemic boundary probe was parallelized with the
BFS (it fires `MATCH (x)-[r]->(iface) ... r.type IN $heritage` before the
frontier loop), that query was miscounted as depth-1, shifting the real depths
so multi-depth impactedCount read 50 instead of 200. Short-circuit the
epistemic queries (uniquely aliased `iface`) to empty in both mock setups so
only frontier queries count. Test-only; production is unaffected (the epistemic
query is a separate real query there).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 11:25:48 +01:00
Gergő Magyar
7eaeb0a0c4
feat: multi-branch indexing and branch-scoped querying (#2106) (#2137)
Some checks are pending
Devcontainer Smoke / Config-transform unit tests (push) Waiting to run
Devcontainer Smoke / Build devcontainer image (push) Waiting to run
CodeQL / Analyze (javascript-typescript) (push) Waiting to run
CodeQL / Analyze (python) (push) Waiting to run
Gitleaks / gitleaks (push) Waiting to run
Publish / Classify release event (push) Waiting to run
Publish / RC guard (marker + release-PR skip) (push) Blocked by required conditions
Publish / ci (push) Blocked by required conditions
Publish / Publish to npm (push) Blocked by required conditions
Publish / Build & Push RC Docker images (push) Blocked by required conditions
Scorecard / Scorecard analysis (push) Waiting to run
Trivy Image Scan / Trivy (gitnexus-cli) (push) Waiting to run
Trivy Image Scan / Trivy (gitnexus-web) (push) Waiting to run
* feat(git): add getCurrentBranch + resolveRefToCommit helpers (#2106)

* feat(storage): branch-scoped getStoragePaths + branchSlug + resolveBranchPlacement (#2106)

* feat(analyze): branch-aware indexing — per-branch slot, no overwrite (#2106)

* feat(registry): nest non-primary branches under one path entry (#2106)

* feat(mcp): optional branch scope on query tools + list_repos branches (#2106)

* feat(cli): --branch on analyze + query/context/impact/cypher/detect-changes (#2106)

* feat(cli): branch-aware list/status + per-branch staleness meta (#2106)

* fix(review): apply autofix feedback

- guard analyze against --branch != checked-out branch (prevents writing one
  branch's working tree into another branch's index slot)
- fix branch-handle pool reinit thrash (track observed indexedAt by lbugPath,
  since applyBranchScope returns fresh handles)
- remove dead resolveRefToCommit helper (staleness uses HEAD vs branch meta)
- RepoListing.branches -> Omit<BranchSummary,'stats'> for type cohesion
- add tests: branchSlug traversal containment, --branch mismatch reject,
  callTool branch threading, legacy-entry branch routing, status detached/stale

* fix(review): address tri-review findings (#2106)

- P1 data-loss: a detached-HEAD re-analyze (CI's actions/checkout default) no
  longer strips the primary's meta.branch stamp; preserve it so a later branch
  analyze cannot claim & overwrite the flat/primary index. +cascade integration test
- P2: capture validateBranchName's trimmed return for --branch so a
  whitespace-padded value no longer false-rejects on-branch or ghosts an index
- F1: on a lost/rebuilt registry, a branch run reconstructs the primary
  top-level entry from the flat meta, not the feature branch's meta

* fix(storage): only trust a non-empty-string flatMeta.branch (#2106 R5)

* fix(analyze): warn when the default branch is not the primary index (#2106 R8)

* fix(mcp): resolve --branch <primary> on a legacy unstamped flat index (#2106 R4)

* feat(cli): gitnexus clean --branch to remove a single branch index (#2106 R7)

* fix(mcp): evict orphaned branch pools on unregister/clean (#2106 R3)

* fix(analyze): union per-branch cache keys so a branch switch keeps shards (#2106 R6)

* fix(analyze): normalize the auto-detected branch label via sanitizeDetectedBranch (#2106 R1)

* fix(cli): skip AGENTS.md base_ref refresh for a non-primary branch fast path (#2106 R2)

* fix(storage): atomic writeRegistry + re-read-before-write to narrow the registry race (#2106 R9)

* refactor(storage): extract branch primitives to branch-index.ts (#2106 R10)
2026-06-10 10:24:40 +01:00
henry201605
36ca096e75
feat(ingestion): Java Spring route annotation → Route node extraction (#2078)
* feat(ingestion): add Java Spring route annotation → Route node extraction

Previously, GitNexus only supported Route node generation for JS/TS
ecosystems (Express, Next.js, Fastify, etc.) and Python (FastAPI, Flask).
Java Spring's annotation-based routing (@RequestMapping, @GetMapping,
@PostMapping, etc.) was only supported at the group contract layer
(http-patterns/java.ts) for cross-repo matching, but NOT at the
ingestion layer for generating graph Route nodes.

This commit adds ingestion-layer support:

1. JAVA_QUERIES (tree-sitter-queries.ts):
   - Added method-level annotation captures (@GetMapping, @PostMapping,
     @PutMapping, @DeleteMapping, @PatchMapping) → @decorator captures
   - Added class-level @RequestMapping → @decorator capture (prefix)
   - Supports both positional ("/path") and named (path="/path",
     value="/path") annotation argument forms

2. parse-worker.ts:
   - Java class-level @RequestMapping is detected and stored as a prefix
     (not pushed as a standalone Route)
   - After per-file capture processing, the prefix is applied to all
     method-level routes in the same file via the existing
     ExtractedDecoratorRoute.prefix field
   - The routes phase (normalizeExtractedRoutePath) handles the prefix
     joining, producing final URLs like /api/users/list

3. Tests:
   - Unit test (worker-backed): 4 cases covering prefix joining,
     bare routes, class-level exclusion, multi-file isolation
   - Integration test (full pipeline): 6 cases covering end-to-end
     Route node + HANDLES_ROUTE edge generation

Closes the feature gap where `route_map`, `shape_check`, and
`api_impact` MCP tools returned empty results for Java Spring projects.

* chore(autofix): apply prettier + eslint fixes via /autofix command

* fix: address review findings — extract spring.ts module, fix PatchMapping, multi-class support

Addresses all P2 findings from tri-review:

1. **Architecture**: Extracted Spring route logic from parse-worker.ts into
   a dedicated `route-extractors/spring.ts` module (matching the pattern
   of `laravel.ts` and `fastapi-router-bindings.ts`). parse-worker now
   has a single dispatch line — no language-specific logic inline.

2. **PatchMapping bug**: Added `'PatchMapping'` to `ROUTE_DECORATOR_NAMES`
   (was silently dropped before).

3. **Multi-class bug**: The new `extractSpringRoutes` walks each class
   declaration independently with its own prefix — no more single-scalar
   `javaClassPrefix` last-wins issue.

4. **Test hygiene**: Unit tests now import `extractSpringRoutes` directly
   (no dist build / worker pool dependency). Tests run in all tiers.

5. **Removed JAVA_QUERIES decorator patterns**: The Spring extractor does
   its own AST walk, so the tree-sitter query captures for Java annotations
   are no longer needed (avoids duplicate route emission).

Additional test coverage:
- Multi-class in one file with independent prefixes
- @PatchMapping support
- Named annotation args (path= and value=) on class-level @RequestMapping

* refactor: move Spring route extraction to LanguageProvider hook

Addresses the second review comment: instead of an inline
`if (language === SupportedLanguages.Java)` dispatch in parse-worker,
the Spring route extraction is now wired through a new optional
`extractDecoratorRoutes` hook on LanguageProviderConfig.

- Added `extractDecoratorRoutes` to LanguageProviderConfig interface
- Java provider registers `extractSpringRoutes` as its implementation
- parse-worker calls `provider.extractDecoratorRoutes?.()` generically
- Removed direct import of spring.ts from parse-worker

This keeps parse-worker fully language-agnostic — no language names
appear in the dispatch path for route extraction.

* refactor: rewrite spring.ts with tree-sitter captures, fix inline imports

Addresses all 4 inline review comments:

1. Rewrote spring.ts to use a single predicate-free Parser.Query
   (same pattern as group-layer JAVA_ROUTE_ANNOTATION_PATTERNS).
   Two-phase loop: first pass collects class prefixes by node.id,
   second pass resolves method routes via findEnclosingClass.
   No more manual DFS / recursion.

2-3. Moved inline import(...) type references in language-provider.ts
     to proper top-level imports (Parser, ExtractedDecoratorRoute).

4. Covered by #1 — recursive helpers removed entirely.

Added 3 extra test cases: non-route named args filtering,
prefix isolation across mixed classes, line number accuracy.

* refactor: extract shared Spring route primitives + add parity test

Addresses review follow-up on #2078:

- Extract the primitives shared by the ingestion (route-extractors/spring.ts)
  and group (http-patterns/java.ts) Spring extractors into a new
  route-extractors/spring-shared.ts: METHOD_ANNOTATION_TO_HTTP,
  findEnclosingClass, isRouteMemberKey, and a safe unquoteSpringLiteral.
  Both extractors now import from it (group -> ingestion, the layer-correct
  direction) so the shared semantics can't drift apart.

- Replace spring.ts's local unquote() with the safer unquoteSpringLiteral
  (returns null for non-string nodes instead of assuming a quoted string).

- Add test/unit/spring-route-extractor-parity.test.ts: runs one shared Spring
  fixture through both extractors and asserts they surface the same provider
  method/path combinations.

The broader HttpRouteExtractor source-scan optimization is tracked in #2138.

---------

Co-authored-by: henry <zhangwei2017@unipus.cn>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-10 09:44:56 +01:00
Gergő Magyar
292f26ece3
fix(hooks): silence MCP-owned-DB augment skip for strict hook runners (#1913) (#2134)
* fix(hooks): silence MCP-owned-DB augment skip for strict hook runners

The PreToolUse augment-skip path wrote `[GitNexus] augment skipped: MCP
server owns DB` to stderr unconditionally on a normal (non-error) skip.
Strict hook runners that validate hook output (e.g. Codex `PreToolUse`)
treat that as noisy / "invalid pre-tool-use JSON output".

Gate the diagnostic behind GITNEXUS_DEBUG via a shared `isDebugEnabled()`
helper, so normal skips are silent by default (empty stdout AND stderr,
exit 0) and the reason stays recoverable with `GITNEXUS_DEBUG=1`. Applied
consistently to all three hand-maintained hook copies (claude,
antigravity, claude-plugin).

Tests:
- Unit (claude CJS + plugin): assert default-silent and debug-on behavior
  for the MCP-owned-DB skip and for the fail-closed (lsof ETIMEDOUT) skip
  that routes through the same gated line; the owner-detection tests run
  with GITNEXUS_DEBUG=1 so the skip discriminator stays observable.
- e2e (antigravity): the antigravity adapter shares the identical gated
  skip but only runs from its install dir, so cover it through the install
  pipeline with a faked DB-owner probe (strict empty-stdout/stderr +
  debug-on). Promote the fake-probe helpers (createHookToolDir / hookEnv,
  plus a module-private writeExecutable) into shared hook-test-helpers so
  unit + e2e reuse them.

Fixes #1913

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(hooks): unify GITNEXUS_DEBUG gating in main() catch handlers

The main() catch-handler in all three hook copies still gated its crash
log on truthy `if (process.env.GITNEXUS_DEBUG)`, while the skip diagnostic
the #1913 fix added is gated on the strict `isDebugEnabled()` helper
(=== '1' || === 'true'). That split meant GITNEXUS_DEBUG=0 or =false
suppressed the skip line yet still enabled crash logging — two conflicting
contract signals in the same file.

Switch the three catch handlers to isDebugEnabled() so GITNEXUS_DEBUG has
one strict meaning everywhere: exactly '1' or 'true' enables all
diagnostics; everything else (incl. '0', 'false', empty, unset) is silent.

Add boundary tests asserting the MCP-owner skip stays silent with
GITNEXUS_DEBUG='0' and 'false' (CJS + Plugin), pinning the strict contract.

Refs #1913

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(hooks): gate antigravity stale-index hint stderr behind GITNEXUS_DEBUG

The antigravity AfterTool handler mirrored the stale-index hint to stderr
unconditionally on a normal (non-error) success path — the last ungated
stderr write of the class issue #1913 targets, and a divergence from the
claude hook, which never mirrors this hint to stderr.

Gate the stderr mirror behind isDebugEnabled(). The hint still reaches the
agent via additionalContext (stdout JSON) — parts.push(hint) stays
unconditional — so there is no functional loss; only the by-default
terminal mirror moves behind GITNEXUS_DEBUG=1. This knowingly changes the
#1730 terminal-mirror behavior in favor of strict-runner cleanliness and
parity with the claude adapter.

Split the e2e assertion into a default-silent test (hint in
additionalContext, absent from stderr) and a GITNEXUS_DEBUG=1 test (hint
mirrored to stderr).

Refs #1913

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(hooks): document GITNEXUS_DEBUG=1 for hook diagnostics

GITNEXUS_DEBUG was documented only in the cursor integration README, so
the diagnostic escape hatch for the Claude Code / Antigravity hooks was
undiscoverable. Operators hitting a silent hook skip (MCP server owns the
DB, fail-closed probe timeout, or an already-current index) had no
documented way to surface the reason.

Add a Troubleshooting subsection explaining that the hooks stay silent on
normal skip paths for strict runners, that GITNEXUS_DEBUG=1 surfaces the
reason on stderr, and that only '1'/'true' enable diagnostics (stdout JSON
the agent consumes is unaffected).

Refs #1913

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(hooks): update setup-antigravity unit test for gated stale-index hint

U2 (7995e921) gated the antigravity stale-index hint stderr mirror behind
GITNEXUS_DEBUG, but a second test — setup-antigravity.test.ts's "AfterTool
emits stale-index hint" — also asserted the hint on stderr by default and
was missed (it lives outside the two files validated locally; the full CI
matrix caught it).

Update it to the U2 contract: assert the hint via additionalContext with
stderr silent by default, plus a GITNEXUS_DEBUG=1 run asserting the
terminal mirror reappears.

Refs #1913

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 09:09:41 +01:00
Gergő Magyar
e46651e42c
fix(embeddings): create VECTOR index via conn.query, not the prepared path (#2114)
`gitnexus analyze` silently failed to create the LadybugDB VECTOR/HNSW index because `CALL CREATE_VECTOR_INDEX(...)` was run through the prepared `conn.prepare()` path, which rejects multi-statement procedures — degrading semantic search to exact-scan. Route index creation through `conn.query()` via a new adapter-owned `createVectorIndex` (mirrors `createFTSIndex`), make the previously-swallowed error visible (`{ err }` logging), add an in-process idempotency cache, and add real-`@ladybugdb/core` regression coverage.

Fixes #2114.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 07:59:37 +01:00
Gergő Magyar
4682a477d8
feat(mcp): paginate list_repos to avoid client token truncation (#2119) (#2120)
* feat(mcp): paginate list_repos to avoid client token truncation (#2119)

list_repos returned every indexed repository in one unpaginated array,
which large/LLM MCP clients truncate by token limit — so agents with
hundreds of indexed repos could not enumerate them all (the data
transmits fully; the consuming client drops it).

Add bounded limit/offset pagination to the list_repos tool:
- result changes from a bare array to
  { repositories, pagination: { total, limit, offset, returned,
  hasMore, nextOffset } }; default page 50, max 200 (shared constants)
- reject malformed limit/offset; clamp limit above the max
- deterministic order (lower-cased name, then path) over one registry
  snapshot per call, so paging never skips or duplicates an entry
- covers both stdio and remote /api/mcp (shared createMCPServer/callTool)

The internal listRepos() method (5 callers), GET /api/repos, and the
`gitnexus list` CLI are unchanged. The array->object tool-result shape
is a deliberate contract change, documented in CHANGELOG.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(mcp): reject list_repos limit above the max instead of clamping (#2119)

parseListReposPagination silently clamped limit>max to the maximum while
throwing on every other out-of-bounds value (limit<1, offset<0, non-integer,
NaN). A client that advanced offset by its requested limit (rather than
pagination.nextOffset) then silently skipped repositories and saw
hasMore:false — defeating the "never skips" guarantee. Reject an over-max
limit too, so validation is symmetric and a caller never gets a smaller page
than it asked for without a clear error. Updates the schema/description, the
helper + ListReposPagination JSDoc, the guide note, and the two clamp tests.

Resolves the cross-engine-corroborated P2 (Codex + adversarial lane) and the
maintainability lane's clamp-vs-throw inconsistency from the PR #2120 review.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(mcp): name the list_repos return type and mark the parser @internal

Extract the inline listRepos() element shape into an exported RepoListing
interface and use it for both listRepos() and listReposPage().repositories,
replacing the opaque Awaited<ReturnType<LocalBackend['listRepos']>> expression
the maintainability review flagged. Tag parseListReposPagination @internal
(it is exported only for unit testing). Pure type/JSDoc change; no behavior.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(eval-server): type formatListReposResult to the paginated shape

Narrow formatListReposResult's parameter from `any` to
{ repositories: RepoListing[]; pagination?: ListReposPagination } and drop the
dead bare-array branch — after #2119 callTool('list_repos') always returns the
paginated object, so the Array.isArray shim was unreachable. Add a list_repos
continuation hint to the eval-server's getNextStepHint (parity with the MCP
server), and cover the previously-untested non-empty + hasMore:false formatter
branch. Migrates the two bare-array formatter tests to the object shape.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(mcp): harden list_repos pagination coverage

- Exercise the #2054 sibling-clone guarantee through the real callTool tool
  path (in the #2054 describe, which has temp-dir cleanup), proving siblings
  and remoteUrl survive listReposPage's sort+slice — not only listRepos().
- Assert total + limit on the middle-page test (a total miscalculation at a
  non-zero offset would otherwise slip past it).
- Cover the benign boundaries: negative-zero offset (accepted as page 0) and a
  MAX_SAFE_INTEGER offset (empty page).
- Replace the integration test's '\n\n---' split with a string-aware brace
  scan, so a repo path containing braces can never truncate the JSON parse.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(skills): sync the list_repos pagination example to the guide mirrors

The .claude and gitnexus-claude-plugin guide mirrors only carried the one-line
table note; add the full "Paginating list_repos" section (shape + multi-page
traversal example + notes) so all three guide copies are byte-consistent with
the canonical gitnexus/skills/gitnexus-guide.md.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore: drop list_repos CHANGELOG entries from this PR

Restore gitnexus/CHANGELOG.md to match main so this PR contributes no
changelog change; the changelog is curated separately from feature PRs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-09 19:59:54 +01:00
Gergő Magyar
cef63dd044
feat(install): toolchain-free tree-sitter via vendored prebuilds (#2113)
* feat(install): toolchain-free tree-sitter via vendored GitNexus-built prebuilds

Eliminate the C/C++-toolchain requirement at install for the at-risk grammars
(dart, proto, kotlin) by generating + vendoring native prebuilds, mirroring the
existing vendored tree-sitter-swift. The 10 grammars that already ship 6 upstream
prebuilds stay npm dependencies (toolchain-free AND dependency-review-tracked).

- .github/workflows/build-tree-sitter-prebuilds.yml: a registry-parameterized
  workflow that builds {dart,proto,kotlin} x {linux,darwin,win32}-{x64,arm64}
  prebuilds natively, validates each loads + parses on its arch, and opens a PR
  vendoring them. A `guard` job gates the heavy matrix to run ONLY on dispatch
  or a real grammar-version change — ordinary code PRs cost zero matrix minutes.
- dart/proto: prefer a committed prebuild; fall back to today's source build
  when none matches (no behavior change until prebuilds are vendored).
- kotlin: vendor it (Swift parity) instead of compiling the third-party
  optionalDependency from source at the user's install — supersedes #2110's
  optionalDependency mechanism. The ~23 MB parser.c is NOT vendored (the
  workflow builds from the published package); only node-types + bindings +
  prebuilds are. Removed from optionalDependencies; lock regenerated; probe,
  parser-loader note, README/.devcontainer docs, and the #2110 tests updated.

DO NOT MERGE until vendor/tree-sitter-kotlin/prebuilds/ is populated by the
build-tree-sitter-prebuilds workflow: until then Kotlin is unavailable (vendored
with no source-build fallback). dart/proto remain fully functional throughout.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(install): guard 6/6 N-API prebuild coverage for every grammar

Regression guard so a toolchain-less install can never silently lose a tree-sitter
language on a supported platform-arch:

- Vendored grammars (vendor/tree-sitter-*): every one MUST ship a loadable N-API
  prebuild for all 6 tuples {linux,darwin,win32}-{x64,arm64}. Asserts the
  napi_register_module_v1 entry symbol in each .node (cross-platform, no need to
  run the binary). Currently RED for dart/proto/kotlin until the
  build-tree-sitter-prebuilds workflow populates their prebuilds/ — this is the
  must-fill-before-merge gate (swift already passes 6/6).
- npm-dependency grammars: asserts upstream ships 6/6 N-API too, catching a
  future platform drop. tree-sitter-c is allow-listed at 4/6 (missing
  linux-arm64/win32-arm64) pending #2116; the guard also fails if that gap is
  silently closed (prompting allow-list removal).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(install): vendor tree-sitter-c at 0.21.4 with GitNexus-built prebuilds (#2116)

tree-sitter-c is the one grammar dependency upstream ships incomplete prebuilds
for (4/6 — no linux-arm64/win32-arm64), AND it is a REQUIRED grammar: its own
`install` (node-gyp-build) compiles from source when no prebuild matches and
exits non-zero, so on a toolchain-less ARM host `npm install gitnexus` HARD-FAILS
at the c step — during npm's dependency phase, before any GitNexus postinstall
runs (so a postinstall "supplement" can't help).

Fix: vendor c prebuild-only at the pinned 0.21.4 (Kotlin pattern), with all six
prebuilds GitNexus-cross-built, and drop it from `dependencies`:
- vendor/tree-sitter-c/ (bindings + node-types + manifest + prebuilds); build
  probe scripts/build-tree-sitter-c.cjs; added to the build workflow registry
  (kind 'npm' — built from c@0.21.4 source).
- materialize-vendor-grammars.cjs: c is REQUIRED, so it is always materialized,
  even under GITNEXUS_SKIP_OPTIONAL_GRAMMARS (it needs no toolchain).
- Removed from package.json dependencies + lockfile (nothing else needs npm c —
  tree-sitter-cpp's dep on c is dev-only and not installed). Preserves the #1242
  ABI pin: vendoring 0.21.4 keeps the good ABI while closing the ARM gap.
- parser-loader note + the prebuild-coverage guard + a cli-commands assertion
  updated; c moves from the npm-gap allow-list into the vendored 6/6 cohort.

Verified: tsc clean, 31 unit tests pass, c loads/parses; the guard is RED for
c/dart/proto/kotlin until the workflow populates prebuilds (the must-fill gate).
Closes the operational risk in #2116.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ci): source-build fallback for vendored c/kotlin so CI is healthy pre-prebuilds

The vendored prebuild-only grammars (c, kotlin) had empty prebuilds/ until the
build-tree-sitter-prebuilds workflow runs, so they could not load in CI — and
C is hard-required by cross-platform tests (tree-sitter-languages/parsing on
ubuntu+macos+windows), which I cannot pre-build for macos/windows locally. The
robust fix is a source-build fallback that works on every CI runner (all have a
toolchain), mirroring dart/proto:

- Vendor the grammar source (binding.gyp + src/) for c and kotlin; their build
  scripts now PREFER a committed prebuild (toolchain-free) and fall back to
  `node-gyp rebuild` from the vendored source when no prebuild matches. Verified
  both compile against the hoisted node-addon-api@^8 and the runtime loads.
- prebuild-coverage guard is now bootstrap-tolerant: a grammar that vendors its
  source (binding.gyp) may have an incomplete prebuild set (the workflow fills
  it); a prebuild-only grammar (swift) still must ship all six. Any present
  prebuild must still be N-API. Guard goes green; it re-tightens per-grammar as
  the workflow populates prebuilds.
- actionlint: silence a false-positive SC2016 (JS template literals inside the
  single-quoted `node -e` validate block).

Note: kotlin's generated parser.c is large (~23 MB on disk; compresses heavily
in git). Once the workflow populates all six kotlin prebuilds, the source serves
only as the fallback and could be slimmed if desired.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(docker): re-materialize+rebuild vendored grammars after npm prune

`npm prune --omit=dev` in the gitnexus CLI image drops anything not in
package.json's dependency tree — including the VENDORED tree-sitter grammars
(materialized by postinstall, not declared deps) and their built bindings. The
`serve` image analyzes/parses repos at runtime, so re-run the grammar postinstall
after the prune (in the toolchain-equipped builder) to restore them. Load-bearing
for tree-sitter-c, a core REQUIRED grammar now vendored (#2116): as a former
dependency it survived prune; vendored, it would not. Also restores
swift/dart/proto/kotlin, which were silently pruned from the image before.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(grammars): unify tree-sitter-swift with the vendored-source build pipeline

Swift was the last grammar handled differently — it shipped only upstream
prebuilds, while c/dart/proto/kotlin vendor their grammar source and use a
prefer-prebuild -> source-build-fallback activation script. Vendor swift's
source so all five are handled identically (one uniform build path).

- vendor/tree-sitter-swift: add binding.gyp (win-hardened), bindings/node/
  binding.cc, src/parser.c (ABI-14 default, ~18 MB), src/scanner.c, and
  src/tree_sitter/ headers. The 6/6 prebuilds are retained. The legacy
  parser_abi13.c alternate is intentionally not vendored.
- build-tree-sitter-swift.cjs: rewrite the prebuild probe into the dart-style
  prefer-prebuild then source-build fallback (keeps the GITNEXUS_SKIP gate and
  the never-exit-non-zero postinstall invariant).
- build-tree-sitter-prebuilds.yml: register swift (kind 'vendored'); add its
  package.json to the version-gated pull_request paths and a validate snippet.
- prebuild-coverage guard auto-moves swift into the source-fallback cohort
  (binding.gyp now present); refresh the stale "swift is prebuild-only" comments.
- tests: add build-tree-sitter-swift-probe.test.ts; fix the pre-existing
  build-tree-sitter-kotlin-probe.test.ts breakage (it still asserted the old
  probe strings after kotlin's dart-style conversion); assert swift's vendored
  source in cli-commands.test.ts.
- docs: README / .devcontainer / kotlin vendor README — swift's prebuilds are
  now GitNexus-cross-built from vendored source like the rest, not upstream-only.

Verified: swift source-builds against node-addon-api@8 -> N-API binary -> loads
against the pinned tree-sitter@0.21.1 (ABI 14) -> parses cleanly.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(publish): gate a lean prebuilds-only npm tarball behind a coverage guard

Vendoring grammar source (parser.c) alongside the prebuilds means the npm
tarball now carries ~50 MB of generated source it almost never compiles (every
supported platform-arch has a prebuild). Prepare to drop it from the published
package once all prebuilds exist — safely.

- .npmignore: add a GATED, commented-out "lean publish" block that excludes the
  source-build inputs (parser.c/scanner.c/tree_sitter/binding.gyp/binding.cc) but
  keeps prebuilds/ + the runtime files. Uncommenting ships prebuilds-only.
- scripts/assert-publish-grammar-coverage.cjs: a prepack guard that refuses to
  pack/publish if the source exclusion is active while any vendored grammar still
  lacks 6/6 prebuilds (which would ship a grammar with no loadable binding). Wired
  into `prepack` (runs on npm pack + publish, incl. the publish.yml dry-run) and
  exposed as `npm run assert-publish-coverage`.
- test: pure-core decision cases + a real-repo publish-safety check that fails CI
  if .npmignore is activated prematurely.

Net: the prebuilds already publish today (files: ["vendor"]); this makes the
future switch to a prebuilds-only tarball a one-line uncomment that can't ship a
dead grammar. The guard currently reports "source + prebuilds" (only swift has
6/6 prebuilds so far) and passes.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(grammars): consolidate the 5 build-tree-sitter-*.cjs into one

The per-grammar activation scripts (c/dart/proto/swift/kotlin) were ~95%
identical — same prefer-prebuild → source-build → never-fail flow, differing only
in name, target_name, required-vs-optional, and the display label in warnings.

- scripts/build-tree-sitter-grammars.cjs: one registry-driven script. Bare call
  builds all (postinstall); `... <name>` builds only the named grammars (so the
  probe test can isolate one). c is `required: true` (ignores the opt-out gate);
  the rest honor GITNEXUS_SKIP_OPTIONAL_GRAMMARS. Per-grammar try/catch + a final
  process.exit(0) preserve the postinstall never-exit-non-zero invariant.
- package.json: postinstall is now `materialize && build-tree-sitter-grammars.cjs`
  (was five chained `build-tree-sitter-<name>.cjs` calls).
- tests: replace the two near-identical *-probe.test.ts files with one
  parameterized build-tree-sitter-grammars-probe.test.ts that also covers the
  required-vs-optional opt-out split and an unknown-grammar arg.
- update cli-commands.test.ts postinstall assertions + the vendor c/kotlin/swift
  README + swift provenance to reference the consolidated script.

Behavior is preserved (warnings normalized to one consistent format). Removes 5
scripts + 1 test file; adds 1 script + 1 test.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): lazy-load tree-sitter-c to prevent module-load crash

tree-sitter-c is now vendored prebuild-only (#2116) with 0/6 committed
prebuilds, so on a toolchain-less or `--ignore-scripts` install C has no native
binding. Three modules loaded it via a hard top-level `import C from
'tree-sitter-c'`, which throws ERR_MODULE_NOT_FOUND at module-load — crashing
`analyze` before parser-loader's optional/severity:error degradation can run.
This is the #2091/#2093 bug class (previously fixed for swift/dart/kotlin); C was
left static because it used to be an always-present npm dependency.

- languages/c/query.ts: load via the lazy guarded getLanguageGrammar(C), mirroring
  swift/query.ts; the main-thread isLanguageAvailable filter ensures the getters
  are reached only when C is present.
- workers/parse-worker.ts: guarded `_require('tree-sitter-c')` + conditional
  languageMap spread, like swift/dart/kotlin.
- group/extractors/include-extractor.ts: guarded `_require`; getLanguageForFile
  returns null for .c/.h when absent, so C include-extraction degrades to a no-op
  (C++ unaffected).
- extend the registry-import-closure regression test (#2091/#2093) to assert C
  also loads lazily at registry static-import time.

* fix(ci): repin attest-build-provenance to the real v2.4.0 SHA

The workflow pinned actions/attest-build-provenance@bd77c077… commented
`# v2.4.0`, but v2.4.0 is e8998f94… (verified via the GitHub API); bd77c077…
is an untagged mid-stream commit, so the SLSA-attestation step ran unvetted
action code and the comment misrepresented what runs. Repin to the real
v2.4.0 commit and drop the `# PLACEHOLDER-PIN` markers on both this line and
the setup-python pin (a26af69b… is already the correct v5.6.0 — only its
comment was stale). Update the header NOTE accordingly.

* fix(ci): skip the prebuild-PR aggregate when release App secrets are absent

The aggregate job mints a GitHub App token as its first step; with
RELEASE_APP_ID/RELEASE_APP_PRIVATE_KEY unset it hard-failed AFTER a full
(up-to-6-runner) native build. Since the `secrets` context isn't available in
a job-level `if:`, the guard job now computes a `release_app` boolean output
(a step can read secrets) and emits an actionable `::notice::`; aggregate
gates on it and skips cleanly, while the build job's artifacts still upload
(run with open_pr=false for artifacts-only).

* chore(ci): drop package-lock.json from the prebuild paths filter; widen build timeout

`gitnexus/package-lock.json` changes on nearly every dependency PR, so it
fired the prebuild workflow's guard job on unrelated churn (the matrix stayed
correctly skipped — `gitnexus/package.json` already covers the transition-window
pin, so removing the lock only drops guard noise). Also bump the native build
job timeout 30 -> 45 min for headroom compiling the 23 MB kotlin / 18 MB swift
parser.c, especially under arm emulation.

* fix(ci): event-gate the aggregate open-PR condition explicitly

`inputs.open_pr` is null on pull_request events, and the prior
`inputs.open_pr != false` leg relied on GHA's direction-ambiguous null
coercion (Codex F4) to decide whether to open the prebuild PR. Gate
explicitly on the event: a non-fork pull_request that bumped a grammar
version opens the prebuild PR (the documented flow), and `open_pr` is only
consulted on workflow_dispatch — so a manual run with open_pr=false stays
artifacts-only and no event's behavior rests on coercion.

* fix(publish): validate the effective npm-pack contents in the coverage guard

The publish guard inferred "is source shipped?" from a single .npmignore toggle
line, which a partial/out-of-order edit could defeat (exclude binding.gyp but
leave parser.c → unbuildable yet "source-shipping"). It now inspects the
EFFECTIVE tarball via `npm pack --dry-run --ignore-scripts --json` (the
--ignore-scripts avoids re-entering this guard through prepack): a grammar
"ships source" only when EVERY on-disk source-build input (binding.gyp +
binding.cc + parser.c + scanner.c when present + a tree_sitter header) is
actually in the packed file list.

This also surfaced that the gated lean-publish .npmignore block was inert:
package.json's `files: ["vendor"]` allow-list overrides .npmignore for the
vendored subtree, so those exclusion lines never dropped anything. Replace the
dead toggle with documentation of the real mechanism (narrow the `files` field)
and note the guard enforces safety on the effective pack regardless of how the
slim is done.

* test(prebuild): hard-gate declared-fully-prebuilt grammars on 6/6 coverage

The strict 6/6 prebuild assertion was dormant whenever a grammar vendors source
(binding.gyp) — which is every grammar — so a dropped prebuild passed CI
silently. Add a FULLY_PREBUILT allowlist of grammars GitNexus has committed 6/6
for (today: swift); those must keep all six even with a source fallback, so
losing one now fails CI. Grammars graduate into the set as the
build-tree-sitter-prebuilds workflow lands their binaries. (The static-import
degradation smoke is covered by the registry-import-closure regression test
extended in the C lazy-load commit.)

* chore(deps): promote node-gyp-build/node-addon-api to regular dependencies

Every vendored grammar's index.js does `require("node-gyp-build")` at runtime
to load even a prebuilt .node, so node-gyp-build is runtime-load-critical (and
node-addon-api is needed for the source-build fallback). They were
optionalDependencies, surviving `--omit=optional` only via the required
tree-sitter's transitive edge — correct today but fragile. Promote both to
regular dependencies so the contract is explicit (optionalDependencies is now
empty and removed). Lock the contract with a cli-commands assertion.

* chore(vendor): add Windows cflags parity block to tree-sitter-c/binding.gyp

c's binding.gyp used an unconditional `cflags_c: ["-std=c11"]`, while
kotlin/swift gate MSVC flags behind an `OS=='win'` condition (/std:c11 /utf-8).
Inert today (no non-ASCII bytes in c's parser.c, and node-gyp ignores cflags_c
on MSVC anyway), but align the three so a future source-build fallback on
Windows behaves consistently.

* docs(agents): correct stale optional-grammar / postinstall notes

AGENTS.md still said postinstall "patches tree-sitter-swift, builds
tree-sitter-proto" and that only kotlin/swift are "optional". Update to the
vendored-uniform model: postinstall materializes the vendored grammars and
prefers a committed prebuild (source-build only when none matches); c is
required while dart/proto/swift/kotlin are optional + skippable via
GITNEXUS_SKIP_OPTIONAL_GRAMMARS=1, with non-fatal warnings only on a
toolchain-less host with no matching prebuild.

* fix(install): preserve the backup and warn loudly on a failed materialize rollback

If renameSync(partial, dest) failed AND the rollback renameSync(backup, dest)
also failed, the grammar was left unmaterialized (node_modules/<name> missing)
with only a generic "could not materialize" warning — the recoverable backup at
<dest>.materialize-bak was unmentioned. Emit a CRITICAL warning naming the
backup path and the recovery command on that double-failure, and document that
the fail-soft catch removes only the scratch `partial`, never the `backup`
(which may be the sole recoverable copy). Never-throw / exit-0 contract intact.

* fix(publish): make the coverage guard's npm-pack inspection script-safe

The prepack guard shelled out to `npm pack --dry-run --ignore-scripts --json`,
but the `--ignore-scripts` flag is not reliably honored by npm pack's
prepare/prepack lifecycle on the CI npm — so build.js ran, polluted the --json
stdout with `[build] …`, and the guard's JSON.parse threw. That broke every
`npm pack` (packaged-install-smoke on ubuntu+windows) and failed the guard's own
real-repo unit test (the only coverage-job failure). Force script-skipping via
the reliable `npm_config_ignore_scripts` env config (also removes the prepack
re-entry/recursion risk) and parse defensively from the JSON-array start.

* fix(publish): make the coverage guard deterministic — read `files`, not `npm pack`

The npm-pack-based guard timed out in CI: `npm pack`'s prepare/prepack lifecycle
is not skipped by `--ignore-scripts` (flag or env config) on the CI npm, so the
inner pack ran the full build (~20s+) — fine for the slow smoke job, but it blew
past vitest's 30s test timeout in the coverage job (and risked re-entering this
prepack guard).

Replace it with a deterministic, fast (~0.1s) check that needs no subprocess:
since `files: ["vendor"]` OVERRIDES `.npmignore` for the vendored subtree (so
`.npmignore` can never drop vendored source — verified), the ONLY lever that can
exclude source is narrowing the package.json `files` field. The guard now reads
`files` directly: a grammar "ships source" iff `files` includes the vendor
subtree AND the grammar carries a buildable source set on disk. A lean publish
that narrows `files` while a grammar lacks 6/6 prebuilds still fails the gate.

* feat(ci): vendored tree-sitter grammar update monitor

Adds a weekly (+ dispatchable) workflow that checks each vendored grammar against
its source-of-origin (npm for swift/kotlin, the GitHub default branch for
dart/proto; c is excluded — held at 0.21.4 for ABI safety) and opens a PR
re-vendoring any update that is ABI-COMPATIBLE with the pinned tree-sitter@0.21.1
(LANGUAGE_VERSION 13-14).

ABI awareness is the point: most upstreams have moved to ABI 15 (newer
tree-sitter), so a blind "bump to latest" would open PRs that can't build. The
monitor fetches the candidate source, reads its parser.c LANGUAGE_VERSION, and
only re-vendors 13/14 — incompatible updates are reported (notice + job summary),
never applied. (Confirmed live: dart/proto upstreams are ABI 15 today and are
correctly held; swift/kotlin are current.)

The re-vendor refreshes only the source-build inputs + runtime entrypoints,
preserving the GitNexus-hardened binding.gyp / README / prebuilds; the version
bump then triggers build-tree-sitter-prebuilds.yml, whose ABI-validation is the
final safety net so a subtly-wrong re-vendor can't silently ship. PR creation is
gated on the RELEASE_APP secret (skips with a notice if absent), mirroring the
build aggregate. Unit test locks the ABI gate; the script is import-safe.

* feat(ci): monitor tree-sitter-c too (report-only, ABI-pinned)

c was excluded from the update monitor, so an upstream c update went unnoticed.
Include it, but as report-only via a `hold`: c is ABI-pinned at 0.21.4
(#1242/#858) and must not auto-bump without a tree-sitter runtime upgrade, so an
available c update is detected + surfaced (notice + job summary) but never
auto-PR'd — even if it were ABI-13/14. `--apply c` refuses defensively. (Live:
upstream c is 0.24.1 / ABI 15 today, so c is doubly held — reported, not applied.)

* fix(ci): drop the shell in the grammar monitor's github fetch (CodeQL)

CodeQL flagged the GitHub-tarball fetch — it used `bash -c "gh api …/tarball/$ref
> src.tgz && tar xzf src.tgz"`, interpolating the API-derived ref into a shell
command (the shell-command-injection family: "this shell command depends on an
uncontrolled file name"). Replace it with a shell-free path: capture `gh api`'s
binary tarball as a Buffer via execFileSync, write it to a fixed file, and
extract with execFileSync('tar', …). No shell, no injection surface. Verified the
dart/proto fetch + ABI read still work.

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-09 18:16:24 +01:00
Nilotpal Kashyap
1716bf7c1e
feat(cli): add gitnexus uninstall to reverse setup (#2060) (#2062)
* feat(cli): add `gitnexus uninstall` to reverse setup (#2060)

`gitnexus uninstall` was documented in #168 but never implemented, so the
CLI rejected it with "error: unknown command 'uninstall'" (#2060).

Add an `uninstall` command that reverses `gitnexus setup` target-by-target:
removes the GitNexus MCP server entries (Cursor, Claude Code, Antigravity,
OpenCode, Codex), the installed skill directories, and the Claude Code /
Antigravity hook entries plus their bundled hook scripts. Edits are surgical
and idempotent — only gitnexus-owned keys/entries/dirs are touched, and JSONC
comments/indentation are preserved. Defaults to a dry-run preview; `--force`
applies. Per-repo indexes and the global npm package are left alone with
printed hints, since both are destructive in ways setup never caused.

Adds i18n entries (en + zh-CN), help wiring, README/CHANGELOG docs, and unit
tests covering MCP/hook/skill/Codex-TOML removal, dry-run, corrupt-file
safety, and the no-op case.

* changelog changes

* changelog changes

* fix(cli): harden uninstall against data-loss edge cases (review #2062)

Address review findings on the uninstall command:

- Empty derived skill name no longer wipes the whole skills dir: a bare
  '.md' source file would make basename() return '', resolving to the
  skills dir itself. Skip empty names in derivation and reject
  empty/'.'/'..'/separator names in removeSkillsFrom.
- Corrupt settings.json no longer orphans the hook: gate the hook-script
  dir removal on status !== 'corrupt' so we don't delete a script while a
  still-registered entry points at it (Claude + Antigravity blocks).
- Hook removal is now element-granular: delete only the gitnexus command
  inside an entry's hooks[], removing the whole entry only when it becomes
  empty. Preserves a user command co-located in the same entry.
- Fallback TOML stripper: also remove descendant sub-tables
  ([mcp_servers.gitnexus.env]), track multiline strings so a bracketed
  line inside a value isn't treated as a header, and stop reflowing
  unrelated blank lines.
- Set process.exitCode=1 on partial failure; add a 10s timeout to
  'codex mcp remove'.

Tests expanded 7 -> 17: empty-skill guard, corrupt-settings hook
preservation, shared-entry hook removal, OpenCode MCP keyPath,
Antigravity MCP + AfterTool hooks, codex-remove success path, TOML
sub-table + multiline-string cases, dry-run for hooks/skills, and the
directory-layout skill branch.

* refactor(cli): share setup/uninstall target map + harden TOML fallback (review #2062)

Maintainer review follow-ups:

- Extract editor target identities into editor-targets.ts (MCP paths/keyPaths,
  Codex TOML section, skill dirs, hook settings/events/needles/script dirs,
  shared detectIndentation). Both setup.ts and uninstall.ts consume it, so a
  target change updates both sides — killing the silent drift hazard.
- Add a setup -> uninstall round-trip integration test that iterates
  getEditorTargets(): setup writes every target, uninstall removes all of them,
  and a co-located user MCP server + user hook survive. Drift tripwire in both
  directions.
- Preview now prints the exact paths it would remove; command output + README
  state skills are matched by bundled gitnexus skill name. (Provenance marker
  deferred to a tracked follow-up.)

Hardening of the hand-rolled Codex TOML fallback (found in code review):
- Strip a section header that has a trailing inline comment (was matched as a
  header but failed the exact classify check -> section left behind while
  reported removed).
- Preserve CRLF line endings instead of rewriting the whole file to LF.
- Fix multiline-string scan: a line with an odd count of BOTH """ and '''
  no longer mis-picks the delimiter and desyncs the scanner (left->right scan).
- removeSkillsFrom guard also rejects absolute names.

Regression tests added for each. Full setup/uninstall suite green.

---------

Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-09 10:50:18 +01:00
Gergő Magyar
288b96f3e5
fix: batch query enrichment, bake FTS extension into CLI image, add FTS memory repro (#2108)
* perf(query): batch per-symbol process/cohesion/content lookups (N+1 -> 2-3)

Port of the local-backend query-batching from gitnexus-enterprise PR #222
into the OSS local MCP backend. The query tool traced each matched symbol
to its processes + cohesion (+ content) with up to 3N sequential pool
round-trips; batch them into 2-3 'WHERE n.id IN $nodeIds' queries keyed
back to each symbol by a prepended 'n.id AS nodeId' column. Output is
identical: the aggregation loop is unchanged, iterates merged in the same
order, and reads pre-fetched maps instead of issuing a query per symbol.

Adaptations over a blind cherry-pick (would otherwise change output):
- per-nodeId first-row community pick replaces the per-symbol LIMIT 1, so
  each symbol keeps its own community (not one for the whole batch);
- batched rows regrouped to the originating merged item by nodeId so the
  JS-side RRF item.score still drives process ranking;
- positional fallbacks shift +1 (process row[1..6], cohesion [1]/[2],
  content [1]); CodeRelation{type:...} relation form kept; IN-list chunked
  at 100 like the impact path.

Adds a regression test asserting per-node community/content association
(func:login keeps comm:auth; func:validate inherits no community).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(docker): bake LadybugDB FTS extension into the CLI/serve image

The container runs `serve` under the default `load-only` extension policy
(the read pool pins {policy:'load-only'}), so a runtime LOAD EXTENSION fts
never INSTALLs. Dockerfile.cli copied the extension installer but never ran
it, so the runtime user's HOME had no FTS extension: keyword search
silently degraded (no FTS indexes written, ranking falls back to
vector-only with only a warning field). Same class of footgun fixed for
the Hub image in gitnexus-enterprise PR #222.

Run install-duckdb-extension.mjs as the `node` user with the runtime HOME
so INSTALL fts materializes the extension under $HOME/.lbdb/extension where
the runtime LOAD resolves it offline. Pin ENV HOME=/home/node because
Docker does not derive HOME from USER — without it the build-install and
runtime-load would resolve different paths. Verified locally: INSTALL lands
in $HOME/.lbdb/extension/0.17.0 and a fresh offline load-only
`LOAD EXTENSION fts` resolves it. Dockerfile.web is unaffected (static
frontend, no @ladybugdb backend).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(lbug): FTS evict->reload RSS repro + inert pool RSS tracing

Settles the gitnexus-enterprise PR #222 root-cause hypothesis for OSS:
does re-running LOAD EXTENSION fts on every pool evict->reload strand the
native FTS arena (unbounded RSS growth in long-lived MCP serve), or does
db.close() reclaim it (bounded by MAX_POOL_SIZE)? Static read could not
decide — the native lbugjs.node binary documents no close->extension-unload
contract.

Adds gitnexus/scripts/bench/fts-evict-reload-rss.mjs: a NATIVE mode that
reproduces the exact native sequence doInitLbug()+closeOne() perform
(open Database -> Connection -> LOAD EXTENSION fts -> QUERY_FTS_INDEX ->
close) across K self-built FTS fixtures, and a --via-pool mode that drives
the real compiled pool (initLbug/executeParameterized/closeLbug) against an
existing analyzed repo. Plus a behavior-neutral GITNEXUS_POOL_RSS_TRACE=1
stderr trace on pool init/close (stdout reserved for MCP JSON-RPC; single
env read when disabled).

RESULT (native, 24 and 40 cycles x 6 fixtures, --expose-gc): PLATEAU. RSS
warms up to ~400 MB then flattens (40-cycle: +36 MB over cycles 1-10, +3 MB
over 30-40; decelerating), not the linear climb a per-reload arena leak
would produce (240 reloads x stranded arena = multi-GB). db.close()
reclaims the FTS arena. The unbounded-leak hypothesis is NOT reproduced for
the OSS path: the pool's LRU eviction + close-on-evict BOUNDS the footprint,
which is exactly the protection the enterprise Hub supervisor lacked (it
opened bridge DBs in-process without eviction -> 15 GB). => plan U4
(worker/process isolation) is NOT justified by this evidence; U1 + U2 are
the only OSS-shared changes. Caveat: small fixtures + awaited close; a
--via-pool run against a large analyzed repo over a long session is the
production-faithful follow-up (instrumentation is in place for it).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(review): apply ce-code-review autofix feedback (#222 migration)

Adversarial review found the U3 bench PLATEAU->no-leak conclusion was
over-claimed from a 600-row fixture: a size-proportional FTS-arena leak
would be sub-threshold at that scale. Strengthen the bench and make its
verdict honest:
- scale the fixture (--rows, UNWIND batch insert), probe ALL 5 FTS indexes
  in --via-pool (not 2 of 5), add a --no-await-close variant (the pool
  fire-and-forget close shape), and replace the absolute-delta gate with a
  SLOPE-DECELERATION 3-way verdict (PLATEAU / CLIMB / INCONCLUSIVE) plus
  step-discontinuity detection. At production-representative scale the
  synthetic runs are noisy/INCONCLUSIVE (deceleration argues against an
  UNBOUNDED leak but does not prove bounded), so plan U4 stays GATED on a
  --via-pool run against a real large analyzed repo -- not closed.
- Dockerfile.cli: source the scratch-DB size from ENV GITNEXUS_LBUG_MAX_DB_SIZE
  (single source of truth) and add a build-time verify-only LOAD gate
  that fails the build on a HOME/extension-dir mismatch instead of silently
  degrading runtime keyword search.
- install-duckdb-extension.mjs: additive verify-only mode (LOAD-only in a
  fresh process) + robust size parse; back-compatible with the runtime
  positional-size caller (validated).
- tests: wire func:validate into a second process (proc:beta-flow) so the
  batched STEP_IN_PROCESS row[1..6] positional shift is exercised by a
  genuine multi-process symbol, and assert process ranking. No blast radius
  (75 seed-consuming tests pass).
- pool-adapter.ts: trim the traceRss narrated-code comment (DoD 2.3).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(bench): classify a sustained sub-floor RSS slope as INCONCLUSIVE, not PLATEAU

Tri-review P2: the FTS evict->reload verdict short-circuited to PLATEAU
whenever secondHalfSlope < SUSTAIN_FLOOR, BEFORE the deceleration check —
so a sustained (non-decelerating) linear leak below 0.5 MB/cycle was
labeled PLATEAU ("no leak"), the label that would wrongly close plan U4.

Extract median/slopeMbPerCycle/classifyVerdict into a pure, side-effect-free
fts-rss-verdict.mjs (zero imports) so it is unit-testable without loading the
native addon or running the bench, and fix the classifier:
- epsilon-first gate: a truly flat tail (< 0.1 MB/cycle) is PLATEAU regardless
  of decelRatio (guards against over-correcting a real negative into
  INCONCLUSIVE);
- a sustained sub-floor positive slope (>= epsilon, < floor, decelRatio >= 0.6)
  is INCONCLUSIVE — a slow creep RSS cannot distinguish from noise at this
  scale, so the honest label is "not resolved", never a clean PLATEAU;
- the noise floor now scales with the WORKING-SET growth (peak-baseline), not
  the pre-DB baseline RSS (which is interpreter/addon overhead, larger in
  --via-pool mode, and would inflate the floor and HIDE leaks).

Reconcile the stale "per-row-relative delta floor" docstring; add floor +
decelRatio to the MACHINE line. New fts-rss-verdict.test.ts pins all label
boundaries (flat->PLATEAU, sustained-sub-floor->INCONCLUSIVE,
decelerated->PLATEAU, sustained-linear->CLIMB, step->INCONCLUSIVE,
working-set floor, no import side effects). U1 does NOT add detection power
for sub-floor leaks (RSS cannot attribute that magnitude) — it stops the
false PLATEAU and routes that regime to the --via-pool run.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(query): signal partial/warning on a real enrichment failure (not benign missing-table)

Tri-review P2: when a batched enrichment query (process/cohesion/content)
threw, it was caught + logged and the chunk's symbols silently fell back to
`definitions` with no signal — the caller could not tell "genuinely
standalone" from "enrichment failed".

Track an `enrichmentDegraded` flag in the three enrichment catch blocks and,
at response build, compose a single `warning` (FTS-missing and/or the
enrichment message, so neither overwrites the other) plus `partial: true`.
Both fields are omitted on the clean path, so the success-path response shape
is byte-identical.

Crucially, the flag fires ONLY for a REAL failure (timeout / lock / native
fault), NOT the benign "no Process/Community table" prepare error — a repo
analyzed without processes/communities is a normal config, and firing
`partial` on every such query would desensitize callers
(isBenignMissingTableError gates it).

New unit test test/unit/query-degraded-signal.test.ts (vi.mock pool-adapter,
override hybrid search to feed one matched symbol, route STEP_IN_PROCESS ->
throw): real failure -> warning+partial+symbol still returned; benign
missing-table -> no signal; FTS-missing + enrichment failure -> both messages
in one warning. Plus a success-path no-warning/no-partial assertion in the
calltool integration test.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-09 08:46:46 +01:00
azizur100389
3a4247ec36
feat(cpp): resolve inheritance-lattice member lookup (#2077)
* feat(cpp): resolve inheritance-lattice member lookup

* fix(cpp): harden inheritance-lattice lookup

---------

Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-09 06:53:11 +01:00
Gergő Magyar
4de4d205dd
fix(ingestion): lazy-load optional grammars so analyze never crashes when one is missing (#2091, #2093) (#2101) 2026-06-09 04:58:01 +01:00
Gergő Magyar
f2c9e69792
feat(ingestion): M0 — taint/PDG substrate (schema + seams + spikes) (#2080) (#2092) 2026-06-08 18:56:10 +01:00
Gergő Magyar
df5ce1f49b
fix(ingestion): close remaining open language parsing-layer coverage gaps (#1919) (#2072)
* fix(c): skip computed #include MACRO instead of emitting a garbage import source (F5)

* fix(cpp): emit a Variable per name for structured-binding declarations (F9)

* fix(dart): extract static const/final class fields (F26)

* fix(dart): capture old-style function typedefs (F28)

* fix(dart): read real top-level variable shape instead of a dead type field (F29)

* fix(kotlin): capture callable references (F47)

* fix(kotlin): anchor infix-call capture to the operator only (F49)

* fix(kotlin): extract secondary constructors as members (F48)

* fix(kotlin): capture destructuring declarations (F51)

* fix(kotlin): index companion-object properties as fields (F52)

* test(kotlin): assert callable-reference coverage runs on the worker path (F47)

* fix(swift): extract protocol property requirements (F75)

* fix(swift): recognize enum_class_body as a method body node (F79)

* test(ingestion): rebaseline swift captures-golden + scope-capture fingerprints (#1919)

* fix(kotlin): attribute secondary-constructor body calls to the Constructor node (#1919 review CF1)

A Kotlin secondary constructor's body executes statements like a method body,
but the registry-primary scope-resolution path had no Function scope or
Constructor def for it. A call inside the body resolved its caller anchor up to
the enclosing Class scope, mis-attributing the CALLS edge to the class rather
than the Constructor.

Add `(secondary_constructor) @scope.function` to the Kotlin scope query so the
body becomes its own scope, and synthesize a `@declaration.constructor` (named
`constructor`, qualified `<Class>.constructor`, with parameter metadata) so the
scope owns a Constructor def that bridges to the structure-phase Constructor node.

Also add an arity-disambiguating lookup key for overloadable callables: two
same-name secondary constructors of different arity (e.g. a zero-arg vs a 2-arg)
share the qualified key whose first-write-wins assignment is source-order-
dependent — so a zero-arg overload could resolve to a sibling. The structure
node id encodes `#<arity>`; mirror that in the bridge keyspace and match by the
def's parameterCount. Same-arity overloads collapse onto one arity key exactly
as before, so no regression there.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(kotlin): do not own function-local property bindings under the enclosing class (#1919 review CF3)

Kotlin emits destructuring / loop bindings (`val (a,b) = pair`,
`for ((k,v) in m)`) as `@definition.property` to dodge the block-scope
local-symbol pruner. When such a binding sits inside a method body of a class,
the structure-phase owner walk found the enclosing class and emitted a spurious
HAS_PROPERTY edge (e.g. `C -> k`), treating a function-local as a class member.

Guard the Property owner resolution: if a function-like ancestor is reached
before any class container, the property is function-local and gets no owner
edge (it falls back to a File DEFINES edge). Language-agnostic — genuine class
fields sit directly in the class body with no intervening function, so they
keep their HAS_PROPERTY owner edge.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(kotlin): guard non-companion property isStatic=false (#1919 review CF4)

Add a field-extraction case for a plain non-companion class
`class C { val x: Int = 1 }` asserting the property `x` has isStatic=false,
guarding the `isInsideKotlinCompanion` walk against false-positives.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(kotlin): dedup type_identifier lookup in extractOwnerName (#1919 review CF5)

The `node.namedChildren.find(c => c.type === 'type_identifier')?.text` lookup was
duplicated across the companion and non-companion branches of the Kotlin
field-extractor's extractOwnerName. Hoist it into a single local, preserving the
existing behavior (anonymous companion falls back to "Companion"; other nodes
prefer the `name` field, else the type_identifier text, else undefined).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(dart): capture generic old-style function typedefs (#1919 review CF2)

* test(dart): guard multi-name field count and top-level-var labels (#1919 review CF4)

* docs(swift): correct isStatic comment re multi-modifier hasKeyword (#1919 review CF5)

* test(ingestion): rebaseline dart+kotlin scope-capture fingerprints after review remediation (#1919)

* fix(ingestion): correct CF3 owner-strip boundary set for accessor/init bodies and Dart signatures (#1919 review)

The CF3 property-ownership guard used FUNCTION_NODE_TYPES, which (a) includes
Dart bare signatures (function_signature/method_signature) — over-stripping
every Dart class getter/setter's HAS_PROPERTY owner — and (b) omits Kotlin
anonymous_initializer/getter/setter and Swift computed accessors — under-
stripping destructuring/locals inside init{} and accessor bodies, emitting
spurious Class->local HAS_PROPERTY edges. Introduces a guard-specific
LOCAL_SCOPE_BODY_NODE_TYPES set (signatures excluded, accessor/init bodies
included). Adds Dart accessor-ownership + Kotlin init/accessor destructuring
regression fixtures. Both confirmed on the worker pipeline; no cross-language
regression (1597 cross-language tests green).

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-08 08:09:43 +01:00
Gergő Magyar
3963c497dd
fix(parse): correct worker-pool docs drift + surface worker-side stack on crash (#2068) (#2070) 2026-06-08 07:20:12 +01:00
Abhigyan Patwari
f0c292f9e7
perf(ingestion): prune inert local value symbols (#2065) 2026-06-07 14:47:51 +01:00
Sparsh
baca749e0b
fix(vue): F89 JSDoc fix, F90 dual-script merge, F92 lang plumbing (#1936) (#2050)
* fix(vue): F89 JSDoc fix, F90 dual-script merge, F92 lang plumbing (#1936)

* fix(vue): reviewer fixes — P1 lang routing, P2 lineOffset, P2/P3 pipeline tests

* fix(vue): add jsx to lang routing condition

* fix(vue): update F90/F92 fixtures and test assertions for CI

---------

Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-07 06:02:30 +01:00
Gergő Magyar
95f87fc12a
perf(ingestion): Linux-kernel-scale analysis — worker-pool parse + finalize O(n²) + scope-resolution memory wall (#1983) (#2038)
* fix(ingestion): reduce parse-phase memory for huge repos (#1983)

Stop retaining full parse-cache chunks in RAM alongside the merged graph,
slim on-disk shards, defer worker ParsedFile emission for scope-resolver
languages, and add GITNEXUS_DEBUG_HEAP probes for OOM diagnosis.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(ingestion): address #2038 tri-review findings (parse-phase memory)

Resolves the confirmed review findings on PR #2038:

- P1: thread exportedTypeMap through the sequential parse path
  (processParsingSequential) so a no-worker run over a partially-warm
  cache no longer silently drops the sequential-miss files' exported
  types. Cache hits made exportedTypeMap.size > 0, suppressing the
  end-of-loop buildExportedTypeMapFromGraph rebuild, but the sequential
  path never populated the map. Regression test added (fails on the
  pre-fix tree, passes after) plus a fully-sequential differential oracle.
- P2: saveParseCache builds its on-disk index from hashes actually
  written/copied (writtenKeys), never a usedKeys hash whose shard write
  or copy was skipped — no more phantom index entries.
- P2: add a unit test asserting SCOPE_RESOLUTION_LANGUAGES stays in sync
  with SCOPE_RESOLVERS (asymmetric drift would lose a language's ParsedFile).
- Backfill cache coverage: loadParseCacheChunk missing/corrupt -> undefined,
  pruneCache onDiskKeys branch, slim preserves nodes, saveParseCache
  copy-evicted-shard round-trip.
- Cleanups: single-source heap-probe gating via isDebugHeapEnabled();
  hoist the per-chunk mkdir in persistParseCacheChunk behind a
  process-scoped Set; gate COBOL's unused worker-side ParsedFile
  extraction (graph nodes still come from cobolPhase) while keeping
  fileCount/progress unconditional.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(ingestion): remove dead worker-side ParsedFile extraction

After #2038 gated worker `ParsedFile` emission behind `!isScopeResolutionLanguage(language)`, and with all 16 SupportedLanguages registered in SCOPE_RESOLVERS, that gate was structurally always true — the worker already produced no ParsedFiles and scope-resolution re-extracts each file from source on the main thread (run.ts). Remove the now-dead machinery:

- Drop both worker `extractParsedFile` call-sites (tree-sitter processFileGroup + the standalone-provider branch) and the `result.parsedFiles.push`. The standalone branch keeps fileCount/onFileProcessed per file. `result.parsedFiles` stays declared but empty (field removal deferred).
- Remove the now-orphaned `scopeSourceKind` var + `ScopeCaptureSourceKind`/`extractParsedFile`/`isScopeResolutionLanguage` imports.
- Delete the consumerless `migrated-languages.ts` (isScopeResolutionLanguage + SCOPE_RESOLUTION_LANGUAGES) and its drift-guard test — parse-worker was their only importer. Also improves AGENTS.md "shared ingestion code must not name languages" compliance.

`extractParsedFile` and the scope-extractor-bridge stay (scope-resolution/run.ts + Vue resolver use them). Behavior-preserving: worker-sequential-parity passes before and after; tsc/eslint clean; no baseline/golden drift.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* refactor(ingestion): worker-pool-only parsing; remove sequential parser (#1983)

Completes the #1983 huge-repo parse-OOM effort by making the worker pool
GitNexus's sole parse path.

Parallel serialization (the perf core): workers serialize their ParsedFiles to
a disk store in parallel and stream them back to scope-resolution, so the main
thread no longer re-parses every file (the tree-sitter native-memory leak that
caused the OOM). Adds chunk merge-pipelining + work-proportional chunk sizing so
the pool stays saturated.

Remove the sequential parser: `--workers 0`, `GITNEXUS_WORKER_POOL_SIZE=0`, and
`skipWorkers` now hard-error (no silent degrade — #1741); the small-repo
threshold no longer selects an in-process path; pool creation stays lazy /
cache-miss-gated so warm all-hit runs never spawn workers.

Worker-path parity fixes — removing sequential surfaced two pre-existing gaps
that tiny-fixture tests had masked by running below the worker threshold, both
fixed by carrying per-file metadata as DATA across the worker boundary (never
re-parsing on the main thread, preserving the OOM fix):
  - C++: templateConstraints wired into worker node identity (SFINAE overload
    disambiguation) + ADL / inline-namespace capture side-channel serialized
    onto the ParsedFile.
  - Kotlin: companion-scope side-channel serialized the same way (companion /
    static dispatch).

Validation: tsc + build clean; full suite green (10,190 pass — the only
deterministic failures were the now-fixed C++/Kotlin worker-path gaps; the 2
remaining full-run failures are pre-existing load flakiness, green in
isolation); cpp-pipeline benchmark stays linear on a 1-worker pool.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): wire C static-linkage side-channel + ADL O(1) collect + tri-review cleanups (#1983)

Follow-up to the worker-pool-only refactor, from a tri-review of the parse path.

- C static-linkage side-channel (P1): cProvider had no collect/applyCaptureSideChannel,
  so on the now-sole worker path C `static` file-local marks were lost across the worker
  boundary -> false cross-file CALLS edges + over-broad #include wildcard visibility on
  every C analysis (the Linux kernel is C). Mirror the C++/Kotlin wiring: serialize
  `staticNames` per file onto ParsedFile.captureSideChannel and restore it on the main
  thread (no re-parse). + a worker-path regression test (the existing c-static-isolation
  fixture passed vacuously — its collision resolves via #include before the global
  free-call fallback ever consults static-linkage).

- captureSideChannel `kind` discriminant: add `kind:'cpp'`/`kind:'c'` tags + guards
  (Kotlin already had one) now that C/C++/Kotlin share the single generic field.

- Perf: collectCppAdlSideChannel scanned the whole argInfoBySite/noAdlSites maps per file
  (O(F^2) per sub-batch, ~100M parseSiteKey calls at kernel scale). Add per-filePath
  lockstep indexes -> O(1) collect; serialized snapshot byte-identical.

- Cleanups: inline the one-line processParsingWithWorkers wrapper into processParsing;
  drop the always-empty WorkerExtractedData.calls/assignments/constructorBindings fields;
  remove the voided astCache param from processParsing; refresh stale "sequential
  fallback" JSDoc.

Validation: tsc + build clean; cpp 297/297, c 8/8 (incl. the new worker-path
static-linkage guard), typescript + parsedfile-store green; cpp ADL benchmark stays linear.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(scope-resolution): index C/C++ #include resolution in finalize (O(n²)→O(n))

Kernel-scale C/C++ analysis ground in finalizeScopeModel because three
per-#include operations each did a full O(F) scan with no index — the
finalize O(n²) that surfaced once the #1983 parse-phase OOM was fixed:

- expand{C,Cpp}WildcardNames: parsedFiles.find() per wildcard edge → O(R·F)
- resolveImportTarget: new Set(allFilePaths) rebuilt per #include
- resolveCImportTarget: suffix-match scanned all workspace paths

Each is replaced with a WeakMap-per-pass index keyed on the stable
parsedFiles/allFilePaths references that scope-resolution run.ts passes
once per pass:

- Map<ScopeId,ParsedFile> for wildcard expansion (c/static-linkage.ts +
  cpp/file-local-linkage.ts)
- memoized augmented header set (c/scope-resolver.ts + cpp/scope-resolver.ts)
- basename-bucketed suffix index in resolveCImportTarget (c/import-target.ts),
  shared by C and C++ since resolveCppImportTarget delegates to it

Collapses the C/C++ finalize from O(R·F) to O(R+F). Pure-perf, byte-identical
edge output: 962 targeted tests green (490 C + 472 C/C++ scope-resolution);
the basename index preserves the exact endsWith('/'+target) match and the
fewest-path-components-then-lexicographic tie-break.

The kernel's ~25-30k .h headers are classified C++, so both providers must
be fixed. Proven on the Linux kernel: the C finalize completed
(sr-post-finalize lang=c → sr-end lang=c), which the pre-fix run never
reached in 16+ min of grinding.

Build-independent follow-ups (separate from this finalize fix), documented
for later: emitFreeCallFallback same-name buckets (emit phase),
buildGraphNodeLookup + precount global setup, the ParsedFile store-load,
the dart/go/ruby expand-wildcards .find siblings, and the ~26GB
scope-resolution memory floor (full kernel completion needs >~40GB RAM).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(bench): regenerate C scope-capture baseline for the #1983 c-static-linkage-worker fixture

bench/scope-capture/measure.mjs fingerprints emitCScopeCaptures over the
lang-resolution/c-* fixture corpus. The #1983 PR added the
c-static-linkage-worker fixture (caller.c/lib.c/lib.h/local.c — the
worker-path static-linkage side-channel test) but did not regenerate the C
baseline, so `--check` has been red on this branch (main, lacking the
fixture, still matches 0de009b).

Pure fixture-corpus drift — no c/captures.ts or query change branch-vs-main,
existing fixtures' captures byte-identical (c-captures.test.ts 45/45),
scaling stays linear (~0.97). Regenerated: 0de009b -> 39f3a83. Bench now
PASS (14 languages). Unrelated to the finalize O(n²) fix.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(scope-resolution): lower kernel-scale resident memory floor + setup cost

Reduce the scope-resolution resident-memory floor and setup throughput on
huge repos (Linux kernel), the wall that remains after #1983 (parse OOM) and
the finalize O(n^2) fix (b71c77b8). Five units; all preserve byte-identical
edge output (C fixture 177n/255e + c/cpp/cross-file/php/static-linkage suites
green, 619 tests).

U1 (src/cli/analyze.ts): RAM-aware auto heap-cap. Replace the hardcoded
16384MB cap with computeHeapCapMb = max(16384, floor(0.75*effectiveRAM)),
where effectiveRAM = min(os.totalmem(), process.constrainedMemory()) with the
unconstrained-sentinel guard. Add --max-semi-space-size=128 on the respawn.
A user-supplied NODE_OPTIONS heap still wins (no re-exec). Verified: 23973MB
on a 31964MB box, 16384 floor on small machines, cgroup-aware, sentinel safe.

U2 (src/storage/parsedfile-store.ts, .../pipeline/phase.ts): export forceGc()
and call it at the per-language eviction boundary, so a finished language's
ParsedFiles are reclaimed before the next language's store-load instead of
collected lazily under the next pass's allocation pressure (which at cap>=RAM
degrades into swap-thrash). Measured on a real drivers/net/ethernet run:
C 2113->894MB and C++ 1754->1057MB reclaimed at the boundary (no fragmentation
defeat). Answers the plan's Open Question 1.

U3 (src/storage/parsedfile-store.ts): intern def objects by nodeId in the load
reviver so a SymbolDefinition's three serialized copies (localDefs /
scope.ownedDefs / scope.bindings[].def) collapse to one shared object on load.
Per-shard def pool (a def's copies are shard-local). Measured ~42% off the
def-object retained heap (3->1; 1.8M->600k distinct objects on 600k defs).

U4 (.../passes/free-call-fallback.ts): memoize pickUniqueGlobalCallable's
post-filter candidate list per (name, callerFilePath), only when no per-caller
visibility filter applies (the list is then a pure function of name+file), so
repeated free calls of one name from a file reuse the same-name-bucket scan
instead of re-walking a potentially huge bucket per site. The cached array is
read-only-consumed by the .filter()-based arity/overload narrowers. Exported
pickUniqueGlobalCallable + buildGlobalCallableIndex and added an equivalence
test (memoized == un-memoized reference for every (name, file, arity),
including warm-cache repeats and cross-file file-local exclusion).

U5 (.../pipeline/phase.ts): replace the O(L*F) per-language precount + repeated
scannedFiles.filter() with a single O(F) partition-by-language pass; bracket
buildGraphNodeLookup with scope-setup-nodeLookup heap probes so the long setup
is no longer silent.

Plan: docs/plans/2026-06-06-001-perf-kernel-scope-resolution-memory-plan.md
(U6 out-of-core global index deferred). Note: the kernel's full C++ pass floor
(~20k headers + the 8.8GB graph) likely still exceeds 24GB by itself, which is
why U6 remains the only unit that clears the wall.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(test): match OOM-guidance e2e assertions to the U1 reworded hint

The analyze-heap-oom-e2e real-child-OOM test still asserted the pre-U1
wording ('...out of memory.' + a hardcoded 24576 cap). U1 reworded the hint
to mention the auto heap-cap and use a <MB> placeholder, so the three
toContain substrings no longer matched (the assertion at line 62 failed on
all platforms). Update them to the current message. The unit twin
(analyze-heap-respawn) was already updated in 85bfc216; this integration
test was missed by the targeted local run.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(lbug): U6a — deterministic id-sorted graph output behind GITNEXUS_SORT_GRAPH_OUTPUT

First increment of U6 (out-of-core scope-resolution). Adds an optional
deterministic ordering of node + relationship CSV rows by their unique graph
id, behind GITNEXUS_SORT_GRAPH_OUTPUT (default OFF = today's graph-insertion
order, byte-identical — the iterator is returned untouched). With the flag ON
the CSV becomes a pure function of the node/edge SET rather than of emit order.

This is the structural enabler for the windowed/out-of-core resolve (U6b-U6d):
csv-generator.ts:518 currently iterates graph.iterRelationships() in insertion
order with NO terminal sort, so any deviation from parsedFiles-order emit would
change bytes. With U6a on, a windowed emit need only reproduce the same edge
SET, not the global insertion order — removing the single largest byte-identical
hazard from every later windowing step.

Verified: default off keeps the existing csv-pipeline suite byte-identical; on,
node rows are id-sorted and output is independent of graph insertion order
(set-build) with the same node/edge set.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(storage): U6d foundation — disk-backed scope store + lazy ScopeTree

Adds scope-index-store.ts: persistScopeShards (per-file scope shards via the
proven mapReplacer + def-interning reviver) + DiskBackedScopeTree, a lazy
ScopeTree that serves getScope from a bounded LRU of decoded shards plus a small
resident skeleton (scopeId -> {shard, childIds, parent}). Exports
makeInterningReviver from parsedfile-store for reuse.

This is the contained, highest-risk mechanism of U6d (out-of-core scope
resolution): the emit passes reach the heavy per-Scope binding payload
(~17-20GB on the kernel) ONLY through scopeTree.getScope (a point lookup) and
getChildren — they never read parsed.scopes directly — so moving that payload to
disk behind getScope is transparent. Every consumer reads a Scope BY VALUE, so a
value-faithful disk round-trip is byte-identical to resolution.

Proven in isolation: DiskBackedScopeTree is value-identical to buildScopeTree
for getScope/getChildren/getParent/getAncestors/has/size across multiple files
and after LRU eviction, and preserves the def-identity collapse (ownedDefs[i]
=== binding.def). Nothing wires it yet (the resolution-pipeline integration is
the next increment) — zero production impact; default off.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(scope-resolution): U6d integration — seal scopeTree to disk before emit (GITNEXUS_DISK_SCOPE_INDEX)

Wires the U6d out-of-core scope index into the live pipeline behind
GITNEXUS_DISK_SCOPE_INDEX (default OFF = byte-identical). When on:

- finalize-orchestrator builds a TransitionalScopeTree (validated, fully
  resident) instead of buildScopeTree, so finalize/propagate/resolve are
  unchanged.
- After resolve, before emit, run.ts seals it: persists the scopes to a
  file-sharded scope-index-store, swaps the model's scopeTree to disk-backed
  serving from the inside (the frozen bundle can't be reassigned, but the
  wrapper nulls its own resident backing), and drops the heavy Scope.bindings
  payload from all THREE holders — the model's tree (seal), the caller's
  preExtractedParsedFiles, and run.ts's own parsedFiles (scope-stripped copies
  for emit). Emit reads scopes only via scopeTree.getScope (a point lookup,
  now disk-backed + LRU) — verified it never reads parsed.scopes.

Purpose: lower the per-language resident PEAK (kernel C pass ~20→~12 GB by
moving the ~8-9 GB scope payload to disk) so the analysis fits on smaller-RAM
machines. At >=24 GB the full kernel already fits with U1-U5 (U2's 8.7 GB
inter-language forceGc reclaim keeps each pass under cap) — empirically
confirmed — so this is the sub-24 GB lever, not needed at 24 GB.

Byte-identical evidence: DiskBackedScopeTree/TransitionalScopeTree return
value-identical scopes vs buildScopeTree (getScope/getChildren/getParent/
getAncestors, across files + after LRU eviction + post-seal); emit reads only
getScope + referenceSites; flag-off (394 tests) and flag-on-resident (91 tests)
resolver suites stay green; an end-to-end A/B on a 212-file C+cpp+rust subset
produced identical 17,444 nodes / 31,343 edges with the seal firing per language
(c: 410→141 MB reclaimed). Kernel-scale peak-drop measurement pending the
in-flight verdict run freeing memory.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(scope-resolution): U6d — id-back workspaceIndex so the disk seal can reclaim scopes

The kernel run revealed the contained scopeTree seal didn't lower the heap:
WorkspaceResolutionIndex held Scope OBJECTS (classScopeByDefId / moduleScopeByFile),
built from every ParsedFile and live through emit, so the ~28k module + class
scopes stayed pinned past the seal (sr-seal-pre 17,583 -> sr-seal-post 17,771 MB,
no drop). It was the sole residual Scope-object holder (SemanticModel holds none).

Fix: classScopeByDefId / moduleScopeByFile become id-backed ScopeByKeyView
instances — a ReadonlyMap<K, Scope> facade over a K->ScopeId map + the scopeTree,
whose .get fetches via scopeTree.getScope(id). The index now pins only ids, so
once the tree seals to disk the scopes become collectible. Byte-identical: the
view returns the same Scope the resident tree holds (or a value-identical revived
one in disk mode), and iteration keeps the old insertion order. buildWorkspace
ResolutionIndex takes an optional scopeTree (live pipeline passes it); without it
(unit tests) the legacy direct Scope-object maps are returned unchanged.

Verified byte-identical: 733 tests across workspace-index / imported-return-types
/ c / cpp / cross-file / go / java. Kernel peak-drop re-measurement to follow.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* perf(scope-resolution): U6d — precompute exportedCallableByName (fix disk-getScope thrash)

The workspaceIndex id-backing freed the kernel scopes but exposed a throughput
collapse: findExportedDefByName's workspace fallback (walkers.ts:1019) scanned
EVERY module scope's bindings per unresolved free call, and under the U6d
disk-backed scopeTree each module-scope access faulted a shard in from disk —
lib ON went ~1min -> ~7.5min.

Fix: precompute the fallback result once into
WorkspaceResolutionIndex.exportedCallableByName (simpleName -> first module-local
callable def, first-file-wins — the exact semantics the scan returned), built
from the resident module-scope bindings at index-build time. findExportedDefByName
now does an O(1) lookup with zero disk reads.

Result: lib ON ~7.5min -> 21s (cache-warm), byte-identical 17,444/31,343; 758
tests green across workspace-index + c/cpp/cross-file/go/python.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: rename cryptic U-unit codes to descriptive names in comments

The plan-unit shorthand (U3/U4/U6a/U6d/...) was meaningless in the code.
Renamed in comments + test descriptions (no behavior change, byte-identical):
  out-of-core scope index   (was U6)
  deterministic output      (was U6a)
  disk-backed scope seal    (was U6d)
  def-object interning      (was U3)
  free-call candidate cache (was U4)
Also renamed throughout the PR title/summary. Pushed commit messages keep
their original U-codes as historical record.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): durable ParsedFile shards for warm-cache coverage (#2038)

On a warm re-analyze where every chunk is a parse-cache HIT, no parse worker
runs, the run-scoped ParsedFile store is cleared at parse start, and the cached
ParseWorkerResult carries no ParsedFiles (the worker writes them to the store
and empties them from the message). Scope-resolution then found an empty store
and fell back to main-thread extractParsedFile — re-opening the #1983
tree-sitter native-leak OOM the disk store closes (abhigyanpatwari review on
parse-cache.ts).

Fix: workers ALSO write their ParsedFiles to a durable, content-addressed store
(parsedfile-cache/) keyed by chunk hash, mirroring the parse cache's lifecycle
(version-gated by PARSE_CACHE_VERSION, pruned in lockstep to the surviving
keys). On a warm hit the chunk's durable shards are byte-COPIED into the
run-scoped store (no re-parse, no re-serialize -> byte-identical), so
scope-resolution streams them exactly as on a cold run. A coherence gate
re-dispatches the worker whenever a cached chunk's durable shards are missing
(migration / pruned / version-stale) -- never the main-thread extract.

- worker-pool/parse-worker: thread chunkHash through dispatch->job->flush
  (incl. split/requeue) so the worker tags its durable shard by content
- parsedfile-store: durable persist / restore / index / prune API (sibling
  dir, never cleared per run); content-addressing makes stale reuse impossible
- parse-impl: load durable index, gate the cache hit on durable coverage,
  restore on hit, dispatch chunkHash on miss
- run-analyze: prune+save the durable store to the parse cache's surviving keys
- saveParseCache returns its written keys (the durable keepKeys)

Verified on linux/lib: warm preExtractedHits = full coverage (520/207/1, zero
main-thread re-parse), byte-identical cold==warm (17,456n/31,353e), warm 8.5x
faster. New two-run + mixed-mode + coherence-gate regression test.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(ingestion): clear stale scope-index-store shards on each seal (#2038)

The disk-backed scope index writes sequential s<n>.json shards into a shared
<storagePath>/scope-index-store/ dir, with the index resetting per
persistScopeShards call. A seal that writes fewer shards than a previous one
(a later language with fewer files, or a re-run of a shrunken repo) left stale
tail shards on disk indefinitely -- never read by the disk-backed tree, but
multi-GB on kernel-scale repos.

Add clearScopeIndexStore() and clear at the start of persistScopeShards: the
previously sealed language has finished emit and been released before the next
seal runs, so its DiskBackedScopeTree never reads those shards again. Unit
tests: a stale prior-run shard is removed, a fewer-files re-seal leaves no tail
shards, and the helper is idempotent.

Addresses abhigyanpatwari review on run.ts (disk hygiene for the
GITNEXUS_DISK_SCOPE_INDEX path).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-06 22:46:34 +01:00
evolution
3b43eb8b47
fix(go): capture multi-name declarations (#2032)
Some checks are pending
CodeQL / Analyze (javascript-typescript) (push) Waiting to run
CodeQL / Analyze (python) (push) Waiting to run
Gitleaks / gitleaks (push) Waiting to run
Publish / Classify release event (push) Waiting to run
Publish / RC guard (marker + release-PR skip) (push) Blocked by required conditions
Publish / ci (push) Blocked by required conditions
Publish / Publish to npm (push) Blocked by required conditions
Publish / Build & Push RC Docker images (push) Blocked by required conditions
Scorecard / Scorecard analysis (push) Waiting to run
Trivy Image Scan / Trivy (gitnexus-cli) (push) Waiting to run
Trivy Image Scan / Trivy (gitnexus-web) (push) Waiting to run
2026-06-06 04:47:17 +01:00
Sparsh
bb3642ad5f
fix(rust): F70 — replace struct_expression name:(_) with three specific patterns (#2051)
* fix(rust): F70 — replace struct_expression name:(_) with 3 specific patterns

* fix(rust): F70 — cover scoped+turbofish struct literals (foo::Bar::<T> {})

The three patterns enumerate struct_expression.name as type_identifier /
scoped_type_identifier / generic_type_with_turbofish, but
generic_type_with_turbofish.type can itself be a scoped_identifier
(e.g. foo::Bar::<i32> {}), which the turbofish pattern — requiring
type:(type_identifier) — did not match. That dropped the constructor
reference entirely (verified: emitRustScopeCaptures returns 0 ctors for
foo::Bar::<i32> {} and a:🅱️:Bar::<i32> {}).

Add a fourth pattern that captures the trailing identifier of the scoped
turbofish path (scoped_identifier.name is an identifier, not a
type_identifier), and correct the comment that claimed all cases were
covered.

Strengthen rust-f70.test.ts: assert exactly one constructor per case, add
negative assertions guarding against the old full-path capture, and add
the scoped+turbofish and crate:: cases.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Gergo Magyar <gergomagyar@icloud.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-05 17:46:07 +01:00
Abhinav Pandey
89b02286ad
fix(csharp): qualified/alias constructor names, : base/: this initializers, generic type-arg strip (#2046)
* fix(csharp): bind qualified constructor names, capture : base/: this, fix generic strip

Mirrors the Java #1928 parsing-layer fixes for the C# scope-resolution path —
the same three defect classes exist verbatim in C#:

- Qualified / qualified-generic / alias-qualified constructor calls
  (`new Ns.Foo()`, `new A.B.Foo()`, `new Ns.Box<int>()`, `new MyAlias::Foo()`,
  `new global::Foo()`) bound only `@reference.call.constructor.qualified` with no
  `@reference.name`, so the central extractor fell back to the whole-expression
  anchor and the reference name became the raw `new Ns.Foo()` text (never
  resolved). Derive the simple-name tail via the existing `terminalTypeNameNode`
  helper (handles qualified_name, generic tail, and alias_qualified_name), and
  add a query arm for the top-level `alias_qualified_name` shape that was not
  captured at all.

- `: base(...)` / `: this(...)` explicit constructor initializers, modeled by
  tree-sitter as `constructor_initializer` and never matched by the scope query,
  dropped the chained-constructor CALLS edges. Synthesize them: `this` → enclosing
  type name; `base` → the base type's bare name (first base-list entry, which C#
  requires to be the base class). Arity attached for overload disambiguation.

- `interpretCsharpTypeBinding`'s qualifier strip used `lastIndexOf('.')` over the
  whole string, cutting inside a qualified generic type ARGUMENT
  (`Dictionary<string, Ns.User>` → `User>`). Make stripQualifier generic-aware:
  reduce only the segment before the first `<`, re-attaching the generic suffix —
  multi-arg generics stay intact so the `.Values`/`.Keys` collection-accessor
  unwrap keeps working.

Tests: capture-level unit tests for every constructor shape (incl. alias-qualified,
double-match guard) and `: base`/`: this` (incl. struct/record/mixed-base);
interpretCsharpTypeBinding unit tests (the corruption case + nullable/nested/
unknown-generic edges); end-to-end resolver tests with new fixtures. The
csharp-captures golden was regenerated — drift is purely additive (only the new
fixtures; zero existing-fixture digests changed).

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(csharp): enhance constructor resolution and namespace qualification

- Implemented qualified constructor name binding to resolve collisions between types in different namespaces.
- Added support for `: base(...)` and `: this(...)` constructor initializers to ensure correct edge emission in the scope resolution.
- Improved generic argument stripping to prevent incorrect parsing of qualified types.
- Introduced tests for new features, including handling of interface-only base classes and qualified constructor calls.

This update addresses issues related to constructor resolution and namespace qualification, ensuring accurate type references in C# code. Tests have been added to validate these changes.

* fix(csharp): implement namespace prefix tagging for file-level type definitions

- Updated the C# ingestion process to tag file-level type definitions with their enclosing namespace path using a new `namespacePrefix` field, without altering the `qualifiedName`.
- Enhanced the scope resolver to utilize the `namespacePrefix` for resolving same-tail collisions in constructor calls, improving accuracy in type resolution.
- Added unit tests to validate the new functionality, ensuring that namespace prefixes are correctly applied to both block-scoped and file-scoped types, while leaving namespace-free types untagged.

This change addresses issues related to namespace qualification and constructor resolution in C# code, facilitating better handling of type references.

* refactor(scope-resolution): share isOverloadableCallable via util

Extract the ctor/function/method overload predicate into
callable-labels.ts so graph-bridge registration and lookup stay aligned
without duplicated private copies in ids.ts and node-lookup.ts.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Gergő Magyar <gergomagyar@icloud.com>
2026-06-05 07:04:57 +01:00