15 commits

Author	SHA1	Message	Date
ManniX-ITA	1e80285c47	fix(scope-resolution): allow same-range Module-as-parent for top-level scopes (closes #1086) (#1087) ... * fix(scope-resolution): allow same-range Module-as-parent for top-level scopes (closes #1086) When a C# file consists of a single top-level `namespace_declaration` that ends exactly at EOF (no trailing newline, no leading content outside the namespace's `{}` body), tree-sitter-c-sharp 0.23.1 reports identical byte ranges for `compilation_unit` and `namespace_declaration`. Pre-fix the scope-extractor parent-finder relied on strict containment, so the Module was popped off the stack and the Namespace ended up with `parent === null` → `ScopeTreeInvariantError: non-module-requires-parent` → `extractParsedFile` swallowed the throw and the whole file was dropped from the registry-primary path. Cross-file IMPORTS / CALLS edges originating in or terminating at that file vanished. Hit on three real-world `*.Designer.cs` files in PersistentWindows (`HotKeyWindow.Designer.cs`, `LaunchProcess.Designer.cs`, `DbKeySelect.Designer.cs`) — all have the byte signature `<BOM><CRLF>namespace ... { ... }<EOF>` (last hex = `... 7D 0D 0A 7D`). The fix is a single carve-out in the parent-validity contract: a `Module` may parent a same-range non-`Module` child. The relationship stays acyclic because the carve-out is direction-asymmetric — only Module-as- outer parents a same-range non-Module, never the reverse. Two coordinated changes: * `gitnexus/src/core/ingestion/scope-extractor.ts` — `pass1BuildScopes` now consults a new `canParentScope` helper instead of `rangeStrictlyContains` directly. Sort tie-breaker added so a same- range Module always sorts before a non-Module candidate, ensuring the Module lands on the parent-stack first regardless of tree-sitter capture iteration order. * `gitnexus-shared/src/scope-resolution/scope-tree.ts` — `buildScopeTree`'s `parent-must-contain-child` check now uses the same `canParentScope` carve-out so the validator agrees with the extractor on what a well-formed parent edge looks like. Error message updated to spell out the new contract. `rangeStrictlyContains` keeps its strict semantics in both files — position-index lookups, hook-side range comparisons, and other call sites are unchanged. * `gitnexus/test/fixtures/lang-resolution/csharp-namespace-as-root-no-trailing-newline/` — minimal regression fixture mirroring the PersistentWindows shape: both `Models/User.cs` and `App/Program.cs` end exactly on the closing `}` of their namespace with no trailing newline. The trigger is shape- driven, not size-driven, so the fixture stays small (~250 bytes total). * New `csharp.test.ts` describe block: scope extraction completes for both files, and the cross-file `IMPORTS` edge resolves through the scope-resolution path with `reason: 'csharp-scope: using'`. * `scope-tree.test.ts`: replaced the prior "rejects child ranges identical to the parent" case with three new ones — non-Module parent still rejected at equal range; Module-as-parent of a same-range non- Module accepted (the #1086 carve-out); Module-as-parent of another Module still rejected (the asymmetry guard). * `npx vitest run test/unit/scope-resolution test/integration/resolvers` → 2514 passed / 77 skipped / 0 failed (52 test files). * `npx tsc --noEmit` clean in both `gitnexus/` and `gitnexus-shared/`. * End-to-end on PersistentWindows (after rebuilding the Docker image with this branch): 3 prior `scope extraction failed for *.Designer.cs` warnings → 0. Pre-fix index numbers will be re-checked here once the branch is built and indexed; the existing post-#1082 baseline is 1113 nodes / 2987 edges / 39 clusters / 97 flows. `canParentScope` is language-agnostic. Other languages whose query emits `(compilation_unit) @scope.module` plus a single same-range top-level scope can naturally hit the same byte shape on minimal files; this fix applies to all of them uniformly. Refs: #1086 (issue with full root-cause analysis + 4-case empirical repro through `extractParsedFile`). * refactor(scope-resolution): export canParentScope from gitnexus-shared Addresses #1087 review (medium): the helper was previously duplicated byte-for-byte in `scope-extractor.ts` and `scope-tree.ts`. Per DoD "single source of truth in shared", the contract piece belongs in gitnexus-shared (Ring 2 SHARED #912) and the consuming layer should import it. Eliminates the silent-drift surface where a future edit to one copy would produce extractor/validator disagreement on what a well-formed parent edge looks like. Changes: - gitnexus-shared/src/scope-resolution/scope-tree.ts: add `export` to `canParentScope`. - gitnexus-shared/src/index.ts: re-export `canParentScope`. - gitnexus/src/core/ingestion/scope-extractor.ts: remove the local `canParentScope` definition (and its now-unused local copy of `rangeStrictlyContains`), import from `gitnexus-shared`. The local `rangesEqual` stays — it's still used in capture-anchor logic at two unrelated sites. Validation (per DoD §4.4 — both CLI and web consumers verified): - npx tsc --noEmit clean in gitnexus/ and gitnexus-shared/ - cd gitnexus-web && npx tsc -b --noEmit clean - gitnexus-shared `npm run build` clean - Targeted: vitest run test/unit/scope-resolution test/integration/resolvers → 2522 passed / 0 failed / 77 skipped (54 files) - Full suite: vitest run → 7238 passed / 1 failed / 97 skipped. The single failure is `test/unit/ignore-service.test.ts > warns on EACCES but does not throw`, which cannot run when uid=0 (root bypasses POSIX permission checks). Pre-existing on this branch before the refactor; unrelated to scope-resolution.	2026-04-27 11:06:54 +01:00
Gergő Magyar	98ee665889	fix(ingestion): two-channel binding lifecycle (closes #1066) + scope-resolution I8 hardening (#1082) ... * fix(csharp): adaptive tree-sitter buffer + frozen-bucket clone for cross-namespace siblings (#1066) Two coupled regressions surfaced when analyzing real-world C# repos with large source files (issue #1066): 1. Tree-sitter `parser.parse()` is hard-coded to a 32 KB buffer by default. Any file exceeding that threshold throws `Invalid argument` on the worker re-parse path of `populateCsharpNamespaceSiblings` (and the analogous Python / TypeScript captures fallbacks). 2. After the buffer fix unblocks the AST walk, the hook tries to `push()` onto the inner `BindingRef[]` array fetched from `indexes.bindings` — but `materializeBindings` froze that array via `Object.freeze(refs.slice())`. Result: `Cannot add property N, object is not extensible`. Fixes: - `csharp/captures.ts`, `python/captures.ts`, `typescript/captures.ts`: pass `bufferSize: getTreeSitterBufferSize(sourceText.length)` to `parser.parse()` on the cache-miss path so multi-MB files parse. - `csharp/namespace-siblings.ts`: introduce `cloneBindingBucket` to copy the frozen array before mutating, then `set()` the new array back. This is a working but architecturally compromised workaround (#1050 follow-up will replace it with an explicit augmentation channel — see docs/plans/2026-04-26-001 plan). Tests: - New `csharp-large-cache-miss-resolution` fixture (Models/Services/ Other layout, ~77 KB padded UserService.cs) drives the buffer-size failure end-to-end through worker mode. - `csharp.test.ts`: 4 new regression assertions covering both the parse-time buffer-size failure and the freeze workaround. - Per-language captures unit tests gain "large cache-miss file uses adaptive buffer" coverage (TS, Python, C#). - `csharp-hooks.test.ts`: in-memory freeze regression test that reproduces the `Cannot add property` crash without invoking the C# parser at all. Made-with: Cursor * refactor(scope-resolution): add bindingAugmentations channel to indexes Step 1 of the binding-augmentation-channel refactor (issue #1066 follow-up). Pure shape change — no consumers yet. Adds a new `readonly bindingAugmentations` field to `ScopeResolutionIndexes` initialized as an empty `Map` by `finalizeScopeModel`. The new channel is the dedicated post-finalize write target for hooks like `populateCsharpNamespaceSiblings`, so `indexes.bindings` can stay frozen and finalize-owned. Behavior unchanged: nothing reads or writes the new field yet. tsc and the full unit suite remain green. Plan: docs/plans/2026-04-26-001-binding-augmentation-channel.md (local only — `docs/plans/` is gitignored). Made-with: Cursor * feat(scope-resolution): add lookupBindingsAt dual-source helper Step 2 of the binding-augmentation-channel refactor. Introduces a single primitive every walker uses to read both the finalize-owned `indexes.bindings` channel and the post-finalize `indexes.bindingAugmentations` channel. Contract: - Finalized refs come first (preserves existing precedence). - Augmented refs append, deduped by `def.nodeId`. - Empty input on both channels returns a shared frozen empty array. - Single-channel hits return the bucket by reference (no allocation). No consumers are wired yet — Step 3 routes the existing walker primitives through this helper. Augmentations remain empty for every language; behavior of the full suite is unchanged. 8 unit tests pin precedence, dedup, identity for single-channel hits, and the shared-empty-frozen-array sentinel. Made-with: Cursor * refactor(scope-resolution): route binding lookups through lookupBindingsAt Step 3 of the binding-augmentation-channel refactor. Every direct `indexes.bindings.get(...)` consumer in the post-finalize phase is now routed through `lookupBindingsAt` (per-name) or `namesAtScope` + `lookupBindingsAt` (bulk iteration). Routed sites: - `findClassBindingInScope` (walkers.ts) — class-receiver lookups. - `findCallableBindingInScope` (walkers.ts) — free-call lookups. - `findExportedDefByName` (walkers.ts) — module-scope-fallback callable lookups. - `propagateImportedReturnTypes` (passes/imported-return-types.ts) — bulk iteration over an importer's binding entries; switched to `namesAtScope` + per-name `lookupBindingsAt` so post-finalize augmentations are visible to import-derived typeBinding mirrors. Behavior unchanged: augmentations are empty across the suite (Step 4 populates them for C# `populateNamespaceSiblings`). 587 scope-resolution unit tests + 50 integration resolver suites green (4 pre-existing Swift method-implements failures unrelated to this work). Adds `namesAtScope` companion helper for the bulk-iteration callers. Made-with: Cursor * refactor(csharp): write namespace siblings to bindingAugmentations channel Step 4 of the binding-augmentation-channel refactor. The C# `populateNamespaceSiblings` hook is the only consumer that needed to inject cross-file bindings post-finalize, and prior to this change it cloned the (frozen) finalized `BindingRef[]` arrays through a `cloneBindingBucket` helper, then `set()`-back the new array — a workaround for the `Object.freeze` applied by `finalize-algorithm.ts` (issue #1066 root cause). Architecturally that violated `ScopeResolver` Invariant I8 (which permits post-finalize modifications but not in-place mutation of finalized buckets). It also forced read-side consumers to be aware of the workaround. This change: * Switches the three C# write sites to append into `indexes.bindingAugmentations` via `getAugmentationBucket`. The augmentation channel was added in Step 1 and is mutable by contract: inner `BindingRef[]` arrays here are NEVER frozen. * Deletes `cloneBindingBucket` and `getMutableScopeBindings` (workaround helpers no longer needed). * `lookupBindingsAt` (Step 2) merges the two channels transparently for every walker (Step 3), so behavior is unchanged for callers. * Updates the unit test to assert against both channels: finalized bucket stays frozen and untouched, cross-file siblings show up in augmentations only. Renamed the test accordingly. Validation: * `npx tsc --noEmit` clean. * csharp hooks unit + walkers-augmentations unit + csharp integration resolver suite all green (236/236). * Wider `test/unit/scope-resolution test/integration/resolvers` suite: 2507 pass, only 4 pre-existing Swift METHOD_IMPLEMENTS failures remain (unrelated to this work, present on baseline). Refs: issue #1066, ADR-pending binding-augmentation-channel. Made-with: Cursor * feat(scope-resolution): tighten I8 + add validateBindingsImmutability dev guard Step 5 of the binding-augmentation-channel refactor. Captures the new two-channel binding lifecycle in the contract docs and adds a dev-mode runtime validator so a future hook cannot silently drift back into mutating `indexes.bindings`. Contract changes: * `contract/scope-resolver.ts` — rewrote Invariant I8 to describe the two channels (`indexes.bindings` is finalize-output and immutable post-finalize; `indexes.bindingAugmentations` is the append-only post-finalize channel populated by hooks like `populateNamespaceSiblings`). Documented `lookupBindingsAt` as the read-side merger and pointed at the new validator as the enforcement mechanism. * `gitnexus-shared/src/scope-resolution/types.ts` — extended the module-header lifecycle contract to call out `bindingAugmentations` alongside `ReferenceIndex` as the two structures populated after the freeze. Validator: * New `pipeline/validate-bindings-immutability.ts` mirrors the shape of `validateOwnershipParity` (#909): runs only when `NODE_ENV !== 'production' && VALIDATE_SEMANTIC_MODEL !== '0'`, emits via `onWarn`, never throws. Asserts (a) every inner `BindingRef[]` in `indexes.bindings` is `Object.isFrozen`, and (b) every inner array in `indexes.bindingAugmentations` is NOT frozen. * Wired into `pipeline/run.ts` after both `populateNamespaceSiblings` and `propagateImportedReturnTypes`, before `resolveReferenceSites`. One sweep covers the full post-finalize surface. Tests: * `validate-bindings-immutability.test.ts` — 6 cases pinning happy path, both drift directions, multi-violation accumulation, and both production no-op gates. All scope-resolution + csharp resolver tests green (242/242 in the focused run; matches the wider Step 4 baseline). Made-with: Cursor * fix(ingestion): size tree-sitter buffers from UTF-8 bytes Tree-sitter buffer sizing is byte-based, so computing adaptive buffers from JavaScript string length under-sized UTF-8-heavy files. Make getTreeSitterBufferSize accept source text directly and compute Buffer.byteLength internally, then update all parse call sites and max-buffer skip checks to use byte length. Add multibyte cache-miss and cap regressions for C#, Python, TypeScript, and the C# namespace-sibling fallback parse path. Made-with: Cursor * test(scope-resolution): pin augmentation read paths Add focused unit coverage for augmented-only binding reads across the routed walker helpers and imported-return-type propagation path. Clarify I8 wording around lexical Scope.bindings versus post-finalize index channels, and document the intentional local-only behavior of findExportedDef. Also switch the immutability validator tests to Vitest env stubs, document one intentional validator blind spot, and split C# namespace-sibling tests so UTF-8 parsing and augmentation-channel behavior are asserted independently. Made-with: Cursor * test(scope-resolution): avoid slow parser stress fixtures Replace high-cardinality large-file capture fixtures with large padding plus a trailing declaration. This still proves adaptive tree-sitter buffers parse beyond large ASCII and UTF-8-heavy input, without making query matching process thousands of declarations and risking timeouts. Made-with: Cursor * test(scope-resolution): add python and typescript cache-miss resolver regressions Add worker-mode resolver integration coverage mirroring the C# #1066 scenario for Python and TypeScript. Each test builds a temp fixture with large ASCII and UTF-8-heavy source padding, then asserts trailing declarations and call edges still resolve after scope-resolution cache-miss reparsing. Made-with: Cursor * refactor(scope-resolution): gate I8 validator and fast-path namesAtScope Addresses SPARC reviewer feedback on the binding-augmentation channel: - Validator gate is now opt-in outside development. Extract isSemanticModelValidatorEnabled() in utils/env.ts as the single predicate; both validateBindingsImmutability and phase.ts's warn handler share it. Default CLI runs no longer pay the O(binding-buckets) scan, and explicit VALIDATE_SEMANTIC_MODEL=1 now emits warnings even when NODE_ENV is unset. - namesAtScope returns Iterable<string> and zero-allocates when at most one channel is populated (returns Map.keys() directly), only materializing a Set when both channels carry names. The caller-side branching and EMPTY_NAMES escape hatch in propagateImportedReturnTypes are gone -- both helpers handle the empty-augmentation case internally. - C# namespace-siblings header/JSDoc, model JSDoc, I8 contract prose, and the #1066 integration-test header rewritten to say post-finalize fanout appends only to bindingAugmentations; finalized refs come first and win duplicate def.nodeId metadata; local lexical Scope.bindings remains the first-tier shadowing channel. Validator unit-test setup deduplicated via beforeEach and extended with default-CLI no-op + explicit-opt-in cases. Made-with: Cursor	2026-04-26 12:16:09 +01:00
Gergő Magyar	ab077b4c29	feat(ingestion): TypeScript registry-primary scope resolution (Ring 3) (#1050) ... * feat(ingestion): TypeScript registry-primary scope resolution (Ring 3) - Add TypeScript ScopeResolver stack (query/captures/interpret, import decomposition, hooks, arity, merge, receiver binding) and register in SCOPE_RESOLVERS. - Harden shared compound receiver and receiver-bound CALLS pass for map for-of tuple bindings, dotted typeRef shapes, and callable-alias fallbacks. - Flip TypeScript into MIGRATED_LANGUAGES; refresh AGENTS.md and type-resolution-system.md. - Shared finalize-algorithm updates for cross-file scope parity. - Tests: TS scope-resolution unit suite; legacy call-processor suite forces REGISTRY_PRIMARY_TYPESCRIPT=0; registry-primary flag test opts out TS in override scenario. Made-with: Cursor * fix(ingestion): SCC-ordered cross-file return-type propagation + multi-hop re-export resolution Fix CI failures on PR #1050 (TypeScript registry-primary migration) by making `propagateImportedReturnTypes` deterministic via reverse- topological SCC ordering and updating the multi-hop re-export contract to match `followReexportChain` behavior. Why: the legacy pass mirrored an intermediate ref instead of the terminal type when an importer was processed before its source module had its own typeBindings chain-followed (4-file alias chain regression in `ts-simple` fixture: `models.User -> service.user -> app.user` collapsed to `getUser` instead of `User`). Reverse-topological walk of `indexes.sccs` (leaves first) lets every importer see the source's already-followed terminal type in a single pass. Changes: - `imported-return-types.ts`: rewrite to walk SCCs leaves-first, chain- follow the source module's typeBindings BEFORE mirroring, and chain- follow the importer's typeBindings AFTER mirroring. Cyclic SCCs reach a partial fixpoint (no convergence guarantee, ts-circular only asserts no-throw). - `finalize-algorithm.ts`: docstring update on `FinalizeFile.localDefs` to reflect that `followReexportChain` resolves multi-hop re-exports through barrels even when intermediates do not surface the name - surfacing is now a static optimization, not a correctness requirement. - `contract/scope-resolver.ts` Invariant I3: explicitly document the SCC ordering requirement. - `pipeline/run.ts`: split PROF timer into `finalize` and `propagate` so the pass's cost is observable independently. - `ARCHITECTURE.md` Performance notes: describe SCC-ordered propagation. - `imported-return-types.ts`: expand chain-depth comment (2x effective depth from pre/post follow), add multi-ref break rationale, add `ts-simple` motivating-fixture pointer. Tests: - `finalize-algorithm.test.ts`: add 4 cases (3-hop chain, cyclic re-export visited-set guard, wildcard re-export fall-through, multi-source first-match-wins); fix misleading shared nodeId in the thick variant; rename and update the multi-hop test for the new contract (transitiveVia assertion on the thin variant). - `imported-return-types.test.ts` (NEW): unit tests for the SCC pass pinning topological collapse, local-annotation guard, missing-source skip, and cyclic-SCC no-throw. - `cross-file-binding.test.ts` + `ts-deep-alias-chain` fixture (NEW): 5-file integration regression guard for SCC-ordered propagation through 4 module boundaries. Validation: 865 scope-resolution + cross-file tests pass on Windows; typecheck clean across both packages; only pre-existing Swift overload failures remain (verified on PR base commit, environmental). Made-with: Cursor * fix(ingestion): address PR #1050 review findings — side-effect imports, resolve-cache perf, adapter signature Three independent fixes surfaced by the production-readiness review of the TypeScript registry-primary scope-resolution migration (RFC #909 Ring 3). All three pass under both REGISTRY_PRIMARY_TYPESCRIPT=0 and =1. 1. Side-effect imports were silently dropped (correctness regression). The legacy DAG emitted IMPORTS edges for `import './polyfill'` because its tree-sitter query matches `(import_statement source: (string))` regardless of clause. The new registry-primary path returned `[]` from `splitImportStatement()` for clause-less imports, so no ParsedImport / ImportEdge was ever produced — silent file-level edge loss. Add a generic 'side-effect' variant to `ParsedImport` and `ImportEdge['kind']` in `gitnexus-shared`; finalize resolves the target file and pre-finalizes the edge (no `targetDefId`, no `BindingRef`) so the SCC fixpoint loop skips it. The TypeScript provider now emits + interprets the new kind end-to-end. The variant is intentionally generic so other languages (Rust `use foo as _`, Python module-init) can adopt it. 2. Per-import re-derivation in `resolveImportTarget` (perf regression). The TS adapter built `new Set(allFilePaths)` on every call and let `resolveTsImportTarget` re-derive `allFileList` / `normalizedFileList` and discard the `resolveCache`. For a workspace with N files and M imports that's O(N × M) work per pass. Wrap the adapter in a closure that memoizes all five derived values keyed on the orchestrator's `ReadonlySet` identity; reset only when the set reference changes (start of new pass). New cost: O(N + M). 3. Misleading fake `ParsedImport` in the adapter (architecture). The adapter constructed `{ kind: 'named', localName: '_', importedName: '_', targetRaw }` to call `resolveTsImportTarget`, even though only `targetRaw` and the structural-typed context are read. Extract `resolveTsTarget(targetRaw, ctx)` so the adapter has an honest signature; `resolveTsImportTarget` still works for other callers. Also extract `narrowTsContext` for the type narrowing. Tests: - New 4-file fixture `typescript-side-effect-imports` with two side-effect imports + one named import. - New "TypeScript side-effect imports" describe in `test/integration/resolvers/typescript.test.ts` (parity-gated by `ci-scope-parity.yml` — runs under both flag states). - Updated 2 unit tests to expect 1 side-effect ParsedImport and 4 `@import.statement` matches (was 0 / 3). - 785 / 785 TS scope-resolution tests pass under both REGISTRY_PRIMARY_TYPESCRIPT=0 and =1. Made-with: Cursor * fix(scope): address Codex adversarial review findings on PR #1050 Four findings from the Codex adversarial review broke registry-primary TypeScript resolution for common patterns. All four now have unit and integration regression coverage that pass under both `REGISTRY_PRIMARY_TYPESCRIPT=0` (legacy DAG) and the default registry-primary path. [high] tsconfig path aliases dropped: Threaded `tsconfigPaths` through ScopeResolver via a new opaque `resolutionConfig` parameter and a `loadResolutionConfig(repoPath)` hook. The orchestrator (`scopeResolutionPhase` + `runScopeResolution`) loads it once per workspace pass and forwards into every `resolveImportTarget` call. TypeScript resolver now resolves `@/services/user` style imports through the standard resolver's alias branch. [high] TSX parsed with the wrong grammar: `emitTsScopeCaptures` now picks the parser/query by `filePath` (`.tsx` -> TSX grammar) and validates cached trees against the expected grammar via the new exported `tsCachedTreeMatchesGrammar` helper. Stale TS-grammar trees for `.tsx` files no longer leak through the scope query. [medium] Literal dynamic imports never linked: Added `kind: 'dynamic-resolved'` to `ParsedImport` and `ImportEdge`. The decomposer emits a synthetic `@import.literal` capture for string-literal dynamic imports; the interpreter maps that to `dynamic-resolved`; finalize pre-finalizes it as a file-level terminal (same shape as `side-effect`). `import('./feature')` now produces a real IMPORTS edge under the registry-primary path. Legacy DAG keeps its existing behavior — the new integration assertion is gated behind the flag. [medium] Namespace re-exports invisible from barrels: The decomposer now emits TWO captures for `export * as ns from './m'` — the existing `reexport-namespace` import draft AND a synthetic `@declaration.namespace` capture (via `buildNamespaceDeclarationMatch`). The latter creates a Namespace `SymbolDefinition` in the barrel's `localDefs`, so downstream `import { ns } from './barrel'` resolves through `findExportByName`. Regression fixtures under `gitnexus/test/fixtures/lang-resolution/`: - typescript-tsconfig-aliases (`@/` alias) - typescript-tsx-jsx (Button.tsx + App.tsx with JSX) - typescript-dynamic-import (`await import('./feature')`) - typescript-reexport-namespace (`export * as Models from './base'`) Validation: - gitnexus-shared builds clean - gitnexus typecheck clean - 385/385 TS scope-resolution tests pass under both `REGISTRY_PRIMARY_TYPESCRIPT=0` and default Made-with: Cursor * perf(scope): O(1) defById lookup + bounded re-export depth (PR #1050 round 3) Addresses the round-3 PR #1050 reviews (Claude adversarial + xkonjin): both flagged the existing O(N²) `findDefById` linear scan in `materializeBindings` and the unbounded recursion in `followReexportChain` as production-readiness blockers for TypeScript monorepos. Both fixes land alongside their regression tests under both `REGISTRY_PRIMARY_TYPESCRIPT=0` and the default registry-primary path. [high] materializeBindings O(N_files × N_defs × N_edges) → O(N_defs + N_edges): Build a `nodeId → SymbolDefinition` index map once at the top of `materializeBindings` (one O(N_defs) pass), then replace the per-edge `findDefById(files, edge.targetDefId)` linear scan with an O(1) `defById.get(edge.targetDefId)` lookup. Also drop the now-unused `findDefById` helper. At realistic TypeScript monorepo scale (~5k files × ~50 defs/file × ~100k linked import edges) this is the difference between ~25 s and a few ms inside finalize. Regression test in `finalize-algorithm.test.ts` builds 200 leaf files + 1 consumer importing one symbol from each, asserts every binding materializes correctly. [medium] followReexportChain unbounded recursion: The existing `visited` set caps depth at `O(N_files)` but allows recursion proportional to barrel-chain depth, mismatching the explicit "Iterative DFS to avoid stack overflow" policy in `tarjanSccs`. Added a `MAX_REEXPORT_DEPTH = 100` constant and a `depth` parameter to `followReexportChain` (defaults to 0); each recursive call passes `depth + 1` and the function returns `null` when the cap is exceeded. 100 is comfortably above any realistic hand-authored barrel chain (typical depth 1-5; auto-generated barrels rarely exceed 20) while staying well below JS engine call stack limits. Regression test wires a 200-link reexport chain and verifies the crawl terminates cleanly with `linkStatus: 'unresolved'` (no terminal def reachable within the budget). [low] synthesizeInstanceofNarrowings bare-identifier-only limitation: xkonjin's review #4 noted that the LHS narrowing only handles bare identifiers (`if (x instanceof Foo)`), not member expressions (`if (user.address instanceof Address)`). Added a JSDoc note explaining the constraint and pointing readers at field-type resolution as the workaround for member-chain receivers. Validation: - gitnexus-shared builds clean - gitnexus typecheck clean - 413/413 tests pass under both flag states for finalize-algorithm + TS unit + TS integration suites - 972/972 tests pass across full scope-resolution + Python + C# integration smoke (no cross-language regression) Made-with: Cursor * refactor(finalize): replace recursive followReexportChain with SCC-condensed iterative closure The legacy `followReexportChain` walked re-export drafts via mutual recursion guarded by a per-call visited set + a `MAX_REEXPORT_DEPTH` ceiling. Recursion is fragile (call-stack ceiling, no bound on depth that's actually meaningful), so this replaces it with a structurally better algorithm: a precomputed per-file re-export closure built by running Tarjan SCC over the re-export sub-graph and propagating names in reverse-topological order with a bounded intra-SCC fixpoint. Algorithm (`buildReexportClosures` in finalize-algorithm.ts): 1. Sub-graph: build the directed graph of `reexport` + `wildcard` drafts only (regular/namespace/dynamic imports do not contribute). 2. SCC condensation: run the same iterative `tarjanSccs` already used for the file-level import graph; output is in reverse-topo order so out-of-SCC neighbors are always already-finalized. 3. Per-SCC propagation: - Acyclic singleton: one pass populates from neighbors' closures. - Cyclic SCC: bounded fixpoint capped at |SCC|+1 iterations. With first-wins precedence the closure map is monotone, so each name needs at most |SCC| hops to traverse the cycle. Precedence (preserved from the recursive crawl): - Named re-exports take precedence over wildcards. - Within each kind, declaration order wins. Lookup at finalize time becomes O(1) (`lookupReexportedName`), down from O(chain_depth × drafts) per consult and recursive at that. Properties vs the legacy implementation: - Stack-safe by construction; no `MAX_REEXPORT_DEPTH` guard needed. - 1000-hop barrel chains now resolve in full (legacy capped at 100 and surfaced anything deeper as `unresolved`). - Cycles handled structurally via SCC, not via per-call visited set. - Same observable semantics: every existing test passes unchanged. Tests: - Replace the obsolete `MAX_REEXPORT_DEPTH (200-hop chain stops cleanly without stack overflow)` test (which asserted the OLD bug — that deep chains failed to resolve) with a positive 1000-hop test that asserts full resolution + accurate `transitiveVia`. Proves both the recursion is gone AND the closure correctly inherits the leaf def across all hops. - Update commentary on adjacent re-export tests to reference the closure mechanism. - Update `FinalizeFile.localDefs` JSDoc + import-decomposer.ts inline doc to point at `buildReexportClosures` instead of the removed function name. Validation: - gitnexus-shared builds cleanly. - gitnexus typechecks cleanly. - 28/28 finalize-algorithm.test.ts tests pass (incl. new 1000-hop). - 801/801 TypeScript scope-resolution tests pass under default (registry-primary) AND `REGISTRY_PRIMARY_TYPESCRIPT=0` (legacy DAG). - 404/404 Python + C# integration tests pass — no regression in cross-language consumers of the shared `finalize`. Made-with: Cursor * fix(scope): remove non-null assertions from scope resolution Made-with: Cursor * fix(scope): address TypeScript review follow-ups Made-with: Cursor * fix(scope): address TypeScript import review follow-ups Add regression coverage for non-binding import edges and circular TypeScript bindings so PR #1050 review concerns stay visible without changing runtime semantics. Made-with: Cursor	2026-04-26 08:23:08 +01:00
Gergő Magyar	a7b3fa1b81	feat(csharp): migrate C# to registry-primary scope-resolution (Closes #934) (#1019) ... * feat(csharp-scope): unit 1 — scope query + captures orchestrator First slice of the C# scope-resolution migration (issue #934, RFC #909 Ring 3). Closes `Unit 1` of docs/plans/2026-04-21-004-feat-csharp-scope-resolution-plan.md. Adds: - src/core/ingestion/languages/csharp/query.ts — tree-sitter scope query covering compilation_unit, namespace (block + file-scoped), class-like (class/interface/struct/record/enum), method-like (method/constructor/destructor/local_function/operator), property and field declarations, using directives, type bindings (parameter annotations, local variable annotations, constructor inference, invocation alias), and references (free call, member call including null-conditional, constructor call, member write). - src/core/ingestion/languages/csharp/captures.ts — pass-through orchestrator mirroring python/captures.ts. Import decomposition (Unit 2), receiver-type-binding synthesis (Unit 3), and arity metadata synthesis (Unit 5) stub out for future units. - src/core/ingestion/languages/csharp/cache-stats.ts — PROF instrumentation mirror of python/cache-stats.ts. Design notes: - Return-type / field-type / property-type captures deferred. tree-sitter-c-sharp does not expose these under a clean named field that pattern-matches. When Unit 7 parity gate surfaces a gap, add positional patterns or a post-hoc extractor lookup. - object_creation_expression with qualified_name type — the qualified name itself is the reference text; captured as a whole via a dedicated tag so interpretation in later units can split namespace + name. - Null-conditional calls use positional descendant patterns because tree-sitter-c-sharp's member_binding_expression and conditional_access_expression don't expose named fields. Coverage: - 23/23 new unit tests in test/unit/scope-resolution/csharp/csharp-captures.test.ts cover every capture tag. Confirmed against tree-sitter-c-sharp via the probe-script loop during development; grammar drift would surface as a capture-shape assertion failure. - tsc --noEmit clean. No changes to shared infrastructure. Resolver wiring + registration land in Unit 6. * fix(csharp-scope): capture null-conditional receiver + operator decls Adversarial review surfaced two Unit 1 bugs that would silently corrupt the graph once C# is flipped on the scope-resolution path: - `obj?.Save()` only emitted @reference.name, so receiver-bound resolution downgraded to the free-call fallback and could mis-link to an imported `Save`. Capture the conditional_access_expression receiver under @reference.receiver. - `operator_declaration` had @scope.function but no @declaration.method owner, so calls inside operator bodies were attributed to the enclosing class and the operator itself disappeared from method lookup. Capture the operator token as @declaration.name (downstream csharpMethodConfig normalizes to op_Addition etc.). - `conversion_operator_declaration` was missing from both scope and declaration sets. Added with the target type as the name anchor. Arity metadata for overload resolution remains deferred to Unit 5 and gated behind Unit 7's parity flip, as documented in captures.ts. * chore(scope-resolution): drop unused python/scopes.scm sibling The file was documentation-only — the authoritative scope query is the embedded `PYTHON_SCOPE_QUERY` constant in `python/query.ts`. Nothing loaded the `.scm` at runtime, so it drifted from the code. Remove it and update the four doc comments that pointed at it: - language-provider.ts: "scopes.scm query" → "scope query (embedded in each language's query.ts)". - languages/python.ts: capture-vocabulary pointer → query.ts. - python/query.ts header: drop the "edit both together" note. - python/receiver-binding.ts: "keeps the .scm declarative" → "keeps the embedded scope query declarative". - scope/walkers.ts: "Python's scopes.scm" → "Python's scope query". Historical plan docs under docs/plans/ still reference scopes.scm but are frozen artifacts, not living documentation. C# never had a .scm sibling, so no action needed there. * feat(csharp-scope): Unit 2 — import interpret + target resolver Adds the three files Unit 2 of the C# scope-resolution plan calls for: - `import-decomposer.ts` — inspects each `using_directive` node and synthesizes `@import.kind/source/name/alias` markers. Kinds: `namespace` — `using X;` / `using X.Y.Z;` `alias` — `using Alias = X.Y.Z;` (generics stripped) `static` — `using static X.Y;` `global using` maps to namespace (plan's deferred decision); the `global::` qualifier is stripped before emitting. - `interpret.ts` — reads the markers and builds `ParsedImport`. Static using maps to `kind: 'wildcard'` since it brings members into unqualified scope; Unit 4's merge-bindings tiers wildcards lowest. Also provides `interpretCsharpTypeBinding` with nullable/single-arg generic/qualifier stripping so receiver-typed resolution sees the concrete class name. - `import-target.ts` — suffix-match adapter returning a single primary file. Cross-file partial-class aggregation runs later at graph-bridge time (Unit 6). The csproj-based `resolveCSharpImportInternal` stays on the legacy path until Unit 7's parity gate surfaces a gap. - `captures.ts` routes `@import.statement` matches through the decomposer so the interpreter sees the markers it needs. Tests cover every using flavor + resolution edge cases. 38/38 scope- resolution C# unit tests pass; tsc clean. * feat(csharp-scope): Unit 3 — simple hooks (binding/import/receiver) Adds simple-hooks.ts mirroring Python's pattern: - `csharpBindingScopeFor` — delegates to innermost (block scope is already captured by @scope.block in the query). - `csharpImportOwningScope` — binds `using` inside a namespace to that namespace's scope so imports don't leak into sibling namespaces. File-level using delegates to module. Function-body using (not legal C# but possible from malformed input) attaches to the function. - `csharpReceiverBinding` — looks up `this` / `base` in the function scope's type bindings; returns null for statics, free functions, and non-Function scopes. `this` / `base` synthesis itself is deferred to a follow-up (matches Python's receiver-binding.ts pattern). 9 new tests pin delegation semantics. 47/47 C# scope-resolution unit tests pass; tsc clean. * feat(csharp-scope): Unit 4 — mergeBindings (using precedence) Three-tier shadowing, same shape as Python's LEGB merge: 0: local — class members, locals, parameters 1: using — namespace / named / reexport (equal tier; compiler requires explicit qualifier if two using collide) 2: wildcard — `using static X.Y;` static-member imports Within the surviving tier, de-dup by DefId (last-write-wins) so a re-declared `using` cleanly replaces its earlier binding. Explicit interface implementations bind under their qualified name in the extractor layer, so they don't collide with plain simple names here. 7 new tests pin precedence + dedup semantics. 54/54 C# scope-resolution unit tests pass. * feat(csharp-scope): Unit 5 — arity metadata synthesis + compatibility Adversarial review flagged overload narrowing as a blocker for the Unit 7 flip. This lands the declaration-side metadata; callsite-side arity synthesis is a separate gap we'll address if the parity gate surfaces overload misresolution. - `arity-metadata.ts` — reads `csharpMethodConfig.extractParameters` and produces `{ parameterCount, requiredParameterCount, parameterTypes }`. `params` variadic collapses parameterCount to undefined (matches Python's `*args` treatment) and appends a literal `'params'` marker to parameterTypes so the compatibility hook can detect it without re-reading the AST. Default-valued parameters contribute to optionalCount → requiredParameterCount = total − optional. - `arity.ts` — `csharpArityCompatibility(def, callsite)` returns compatible / incompatible / unknown. Mirrors Python's three-verdict shape so the central registry's arity filter works without adapter logic per-verdict. - `captures.ts` — on every @declaration.method / @declaration.constructor / @declaration.function match, synthesize @declaration.parameter-count, @declaration.required-parameter-count, and @declaration.parameter-types captures. Covers method_declaration, constructor_declaration, destructor_declaration, operator_declaration, conversion_operator_declaration, and local_function_statement. 12 new tests: 5 on captures-side synthesis (method + params + types + variadic + constructor + local function), 7 on the compatibility hook. 66/66 C# scope-resolution unit tests pass; tsc clean. * feat(csharp-scope): Unit 6 — wire csharpScopeResolver + register Creates the public barrel (index.ts) and ScopeResolver (scope-resolver.ts) and plumbs them into the provider + registry: - `languages/csharp/index.ts` — re-exports the hook entry points and documents the 8 known limitations of the registry-primary path (csproj-driven namespace resolution, multi-file namespace expansion, type-based overload resolution, nested generics, dynamic, preprocessor branches, cross-file global using, expression-bodied members). - `languages/csharp/scope-resolver.ts` — ScopeResolver shape mirroring Python's. `isSuperReceiver` matches the literal `base` keyword. `fieldFallbackOnMethodLookup: false` since C# is statically typed — the type-binding layer already produces precise owner types; `propagatesReturnTypesAcrossImports: true` since signatures are authoritative. - `languages/csharp.ts` — adds the 9 hook entry points to the provider (emitScopeCaptures, interpretImport, interpretTypeBinding, four simple hooks, mergeBindings, arityCompatibility, resolveImportTarget). - `scope-resolution/pipeline/registry.ts` — registers csharpScopeResolver alongside the Python entry. MIGRATED_LANGUAGES stays at {Python} — the resolver sits idle until Unit 7's parity gate confirms ≥99% fixture parity. 368/368 scope-resolution unit tests pass; tsc clean. * feat(csharp-scope): parity Unit 1 — this/base receiver-binding synthesis Closes 3 parity failures (51 → 48). Target bucket: Category C from the parity plan. Changes: - `languages/csharp/receiver-binding.ts` (new): walks up from a function node to the enclosing class/struct/record/interface, synthesizes `@type-binding.self` captures with boundName `'this'` (and `'base'` when the enclosing type is a class/record with an explicit base_list entry). Skips static methods and interface / struct `base` cases. Anchors to the method's `body` block so the scope-extractor's positionIndex places the binding inside the function scope (not the enclosing class scope). - `languages/csharp/captures.ts`: route `@scope.function` matches through the synth, emitting the receiver captures as separate matches. - `languages/csharp/interpret.ts`: map `@type-binding.self` to `source: 'self'` (parity with Python). - `languages/csharp/query.ts`: explicit patterns for `this.X()`, `base.X()`, and `this.X = ...` / `base.X = ...` assignment writes. `this` and `base` are anonymous tokens in tree-sitter-c-sharp so the existing `expression: (_)` pattern (named-only) didn't match. Tests: - 8 new unit tests for receiver-binding synthesis edge cases (class/struct/record/interface, static, nested, constructor, local function inside method). - Parity: 48 failed | 127 passed (175) under REGISTRY_PRIMARY_CSHARP=1; legacy path 175/175 green. * feat(csharp-scope): parity Unit 2a — foreach + pattern + field captures Closes 11 parity failures (48 → 37). Partial Unit 2 progress. Adds type-binding captures for every shape the parity suite exercises whose resolution path is in-file: - Typed foreach `foreach (User u in xs)` — @type-binding.annotation with bindingName `u` and type `User`. - Var foreach `foreach (var u in xs)` — @type-binding.alias so the generic-stripper unwraps `List<User>` / `Dictionary<K,V>.Values` to the element type at chain-follow time. Matches Python's for-loop alias pattern. - `is` pattern `if (obj is User u)` — @type-binding.annotation with scope narrowing simplified to function scope (matches Python's match-case treatment since we don't emit @scope.block). - `switch_section > declaration_pattern` (`case User u:`) — no case_pattern_switch_label wrapper in tree-sitter-c-sharp. - `recursive_pattern` (`is User { Age: 1 } u` / `case User { ... } u:`) — named binding via type+name fields on the pattern node. - Field declaration `private City _city;` — @type-binding.annotation attached to the class scope for `this._city.X` resolution. - Property declaration `public User Owner { get; set; }` — same. - Assignment rebind `alias = Factory()` / `alias = new User()` — @type-binding.alias / @type-binding.constructor so reassignment propagates type info to later receiver-typed resolution. Closed tests: foreach (3), var foreach Tier 1c (2), is-pattern (1), switch pattern (2), recursive_pattern (3). Remaining 37 include tests that need cross-file same-namespace visibility (field chains, assignment chain, cross-file return-type propagation) — deferred to Unit 5 where the IMPORTS/cross-file work lives. 74/74 scope-resolution unit tests pass; legacy path 175/175 green. * feat(csharp-scope): parity Unit 2b — same-namespace cross-file visibility Closes 3 parity failures (37 → 34). Adds the C#-specific implicit import that has no syntactic counterpart: every type declared in `namespace X` is visible to every other file also declaring `namespace X`, without any `using` directive. Changes: - `scope-resolution/contract/scope-resolver.ts` — new optional hook `populateNamespaceSiblings(parsedFiles, indexes, { fileContents })`. Most languages leave it undefined; Python / TypeScript / Java need explicit imports so there's no analogous pass. - `scope-resolution/pipeline/run.ts` — invoke the hook after `buildWorkspaceResolutionIndex` and before `propagateImportedReturnTypes` so the return-type pass sees cross-file sibling class bindings. - `languages/csharp/namespace-siblings.ts` (new) — groups top-level class-like defs by namespace name (extracted from source via regex since `file_scoped_namespace_declaration` scope range covers only the declaration line, not the rest of the file). Injects sibling classes into each file's Module AND Namespace scope bindings with origin='namespace'. Local declarations shadow cross-file siblings via mergeBindings tier precedence. - `languages/csharp/scope-resolver.ts` — wire the hook. 74/74 scope-resolution unit tests pass; legacy path 175/175 green; 34 parity failures remain (was 37) under REGISTRY_PRIMARY_CSHARP=1. * feat(csharp-scope): parity Unit 2c — alias/await/return-type captures Closes 7 parity failures (34 → 27). Adds the remaining type-binding shapes the parity suite exercises: - `var alias = u;` / `alias = u;` — identifier-to-identifier alias. The resolver's chain-follow walks alias → u → u's declared type. - `var u = svc.GetUser();` — chained method call alias. Anchors on the method_access_expression's `name` field; chain-follow picks up GetUser's return type. - `var u = await Factory();` / `await svc.Get();` — await propagation. Strips the `await_expression` wrapper; interpret layer's `stripGeneric` handles `Task<T>` / `ValueTask<T>` unwrapping. - `public User GetUser() { ... }` — method return-type annotation via `@type-binding.return`. Required for `propagateImportedReturnTypes` to see the return type in later cross-file passes. Covers identifier, generic_name, qualified_name, and nullable_type return shapes. 74/74 scope-resolution unit tests pass; legacy path 175/175 green; 27 parity failures remain under REGISTRY_PRIMARY_CSHARP=1. * feat(csharp-scope): parity Unit 3a — cross-namespace `using` binding Closes 2 parity failures (27 → 25). Extends the namespace-siblings pass to resolve `using X;` directives against known namespace buckets: for each `using` that targets a namespace declared somewhere in the workspace, inject that namespace's classes into the importer's module scope with origin='namespace'. This is the scope-resolution analog of legacy's csproj-driven directory↔namespace mapping. Without it, `new User()` in `Services/UserService.cs` (namespace MyApp.Services) can't see the User class in `Models/User.cs` (namespace MyApp.Models) even with `using MyApp.Models;` — the scope-resolver layer doesn't have csproj metadata to translate the dotted namespace path into a directory lookup. Legacy 175/175 green; 25 parity failures remain. * feat(csharp-scope): parity Unit 3b — constructor CALLS emission Closes 3 parity failures (25 → 22). Adds constructor-form CALLS edge emission + C# 12 primary constructor synthesis. Changes: - `scope-resolution/passes/free-call-fallback.ts`: when a site's callForm === 'constructor', look up the class def (not a callable) and pick its explicit Constructor def via workspaceIndex's memberByOwner — or fall back to the Class def itself for implicit constructors. Matches legacy behavior (targetLabel === 'Constructor' when explicit, 'Class' when implicit). - `scope-resolution/pipeline/run.ts`: pass workspaceIndex to the free-call fallback. - `languages/csharp/captures.ts`: synthesize @declaration.constructor for C# 12 primary constructors — `class User(string name, int age)` / `record Person(string First, string Last)`. The parameter_list is a named child of the class_declaration / record_declaration (not a separate constructor_declaration node). Skip the synthesis when the type already has an explicit constructor to avoid duplicates. Emits @declaration.parameter-count + required-parameter-count alongside. Legacy 175/175 green; 376/376 scope-resolution unit tests pass; 22 parity failures remain. * feat(csharp-scope): parity Unit 3c — static call + default-namespace Closes 2 parity failures (22 → 21). - `receiver-bound-calls.ts`: add Case 5 for class-as-receiver. When `Animal.Classify()` has an identifier receiver that resolves to a Class binding (rather than a variable with a typeBinding), look up the member on the class's MRO chain. Covers C#-style static calls and any type-qualified member access. Python doesn't hit this because `ClassName.method()` is syntactically identical to a free call there. - `namespace-siblings.ts`: treat files with no `namespace X;` declaration as living in the default (empty-name) bucket, so types declared in no-namespace files share cross-file visibility. Required for fixtures without explicit namespaces (e.g. the method-enrichment fixture's Animal/App/Dog classes). Legacy 175/175 green; 21 parity failures remain. * feat(csharp-scope): parity Unit 4 — callsite arity synthesis (infra) Synthesize @reference.arity on every invocation_expression and object_creation_expression by counting `argument` named children of the backing `argument_list`. Wires the capture-to-Callsite pipeline shared extractor already consumes (`scope-extractor.ts:878`). No parity-count movement: the remaining arity-adjacent failures (overload disambiguation, optional-parameter dedup, variadic resolution) need type-based argument inference or member-call dedup, both explicitly deferred in the plan's Known Limitations section. This commit is infrastructure — future work lands on top of it. Legacy 175/175 green; 21 parity failures remain. * feat(csharp-scope): parity Unit 5a — IMPORTS edge + static-using mapping Closes 1 parity failure (21 → 20). Fixes cross-file IMPORTS edge emission for C#: - `languages/csharp/interpret.ts`: map `using static X.Y;` to `kind: 'namespace'` rather than `'wildcard'`. The File→File IMPORTS edge needs a non-wildcard kind to survive finalize's Phase 4 (wildcard-expanded edges drop to empty when the provider doesn't implement `expandsWildcardTo`). Unqualified static-member access is a deferred limitation — covered by the namespace-siblings cross-namespace pass for type lookups, and documented under the module's Known Limitations. - `languages/csharp/import-target.ts`: progressive prefix stripping. `using CrossFile.Models;` in a repo laid out `Models/User.cs` (no `CrossFile/` directory) works because the legacy resolver consults csproj; the scope-resolver tries each suffix of the dotted path against `.cs` files. Also handles `using static NS.Type;` by stripping leading segments until a direct match lands. - `test/unit/scope-resolution/csharp/csharp-imports.test.ts`: update the `using static` test to the new namespace-kind shape. 376/376 scope-resolution unit tests pass; legacy 175/175 green; 20 parity failures remain. * feat(csharp-scope): parity Unit 5b — return-type module hoist + chain fallback Closes 1 parity failure (20 → 19) and lays groundwork for Unit 6. Based on investigation-agent findings, addresses cluster of 7 cross-file + chain tests whose return-type bindings were stuck at Class scope and invisible to the chain-follow and propagation passes. Changes: - `languages/csharp/simple-hooks.ts::csharpBindingScopeFor`: when the declaration is a `@type-binding.return`, hoist the binding all the way to the Module scope. The central extractor's auto-hoist only promotes one level (Function → Class); for C# methods the parent is always a Class, so without this override the return binding never reaches Module where chain-follow and cross-file `propagateImportedReturnTypes` read from. - `scope-resolution/passes/compound-receiver.ts`: when the class-scope typeBindings lookup at `objClass.typeBindings.get( methodName)` misses, walk up from the class scope through the parent chain (→ Module) for a return-type binding. Preserves the existing class-scope fast-path while restoring owner-chain lookup for languages that hoist to Module. Python parity suite stays 204/204 green on both flag paths; legacy C# 175/175 green; 19 C# parity failures remain. * feat(csharp-scope): parity Unit 5c — switch-expr + reasons + ACCESSES 1.0 Closes 4 parity failures (19 → 15). - `languages/csharp/query.ts`: add captures for `switch_expression_arm` with `declaration_pattern` and `recursive_pattern`. C# expression- switch (`obj switch { User u => ..., Repo { Name: "x" } r => ... }`) uses a different AST node from classic `switch_statement`'s `switch_section` — needed separate query patterns. - `scope-resolution/passes/receiver-bound-calls.ts`: replace the self-describing `'scope-resolution: *-receiver'` reason strings (which fail legacy-parity consumer filters) with the legacy convention: `'import-resolved'` when the resolved member lives in a different file, `'global'` otherwise. Mirrors `free-call-fallback.ts`'s existing reason logic. - `scope-resolution/passes/receiver-bound-calls.ts`: pass `confidence: 1.0` to `tryEmitEdge` for write/read ACCESSES edges, matching legacy DAG behavior (default 0.85 was legacy-CALLS). Python parity 204/204 on both flag paths; legacy C# 175/175; 15 C# parity failures remain. * feat(csharp-scope): parity Unit 5d — cross-file typeBinding mirror Closes 3 parity failures (15 → 12). `languages/csharp/namespace-siblings.ts`: extend the pass to mirror method return-type bindings from accessible sibling files' Module scopes into the importer's Module scope. "Accessible" = same-namespace siblings + `using namespace X;` targets. Without this mirror, `var u = svc.GetUser()` in App.cs couldn't chain-follow to User even after Unit 5b's module-scope hoist: `GetUser → User` lived on User.cs's Module scope, which isn't on the ancestor chain of App.cs's function scope, and `propagateImportedReturnTypes` only mirrors across explicit ImportEdge targets (not same-namespace implicit visibility). Closes: var-invocation return type, async/await u.Save (ambient namespace), cross-file return-type propagation (via u.Save / u.GetName in Program.cs). Python parity 204/204 on both flag paths; legacy C# 175/175; 12 C# parity failures remain. * feat(csharp-scope): parity Unit 5e — namespace-prefix bucket matching Closes 2 parity failures (12 → 10). `languages/csharp/namespace-siblings.ts`: when matching accessible namespaces against class buckets, also probe every dotted prefix. `using static CrossFile.Models.UserFactory;` parses into the importer's accessible-namespace set as the full type path, but the matching bucket is keyed on the containing namespace (`CrossFile.Models`). Walking back through the dotted segments ensures the static-using importer sees the containing namespace's sibling files' return-type bindings. Legacy 175/175 green; 10 C# parity failures remain. * feat(csharp-scope): parity Unit 6a — class-like owner extension Closes 1 parity failure (10 → 9). Extends `populateClassOwnedMembers` to recognize Interface / Struct / Record / Enum / Trait as class-like owners, not just Class. The C# scope query collapses interface_declaration / struct_declaration / record_declaration / enum_declaration to @scope.class (they share body-scope semantics), but the declaration-side tags produce defs of type Interface / Struct / Record / Enum. `populateClassOwnedMembers` previously only looked for Class-typed defs in class scopes, so interface members (including C# 8+ default methods) never got ownerIds — making them invisible to `findOwnedMember` via `memberByOwner`. With this fix, `user.Validate()` on a variable typed as `IValidator` resolves correctly: receiver-bound-calls Case 4 finds IValidator via findClassBindingInScope (which already accepted Interface), walks the chain, and findOwnedMember locates Validate now that the interface default has a proper ownerId. Legacy C# 175/175 green; Python parity 204/204 on both flag paths; 9 C# parity failures remain. * feat(csharp-scope): parity Unit 6b — member-call dedup + handled-site fix Closes 1 parity failure (9 → 8). Adds the missing legacy-parity behavior: collapse multiple member-call sites from the same caller to the same target into one CALLS edge. Changes: - `scope-resolution/contract/scope-resolver.ts`: new optional `collapseMemberCallsByCallerTarget` flag. Default false (preserves the per-site invariant); C# sets it true. - `scope-resolution/graph-bridge/edges.ts`: dedup key drops `line:col` when `collapseByCallerTarget` is on AND edgeType is `CALLS` (ACCESSES writes keep per-site granularity). - `scope-resolution/passes/receiver-bound-calls.ts`: plumbs `collapse` through every `tryEmitEdge` call, and crucially marks `handledSites.add(siteKey)` whenever a resolved def was found — not only when the edge was freshly emitted. Otherwise the site leaked through to `emitReferencesViaLookup` which re-emitted a per-site edge, defeating the collapse. - `languages/csharp/scope-resolver.ts`: opt in to the collapse. Python parity 204/204 on both flag paths; legacy C# 175/175 green; 8 C# parity failures remain. * feat(csharp-scope): parity Unit 6c — Dictionary.Values / .Keys unwrap Closes 2 parity failures (8 → 6). Dictionary<K,V>.Values in a foreach binds the element to V; .Keys binds to K. Without this, `foreach (var user in data.Values)` where `data: Dictionary<string, User>` couldn't propagate user's type to User, and `user.Save()` stayed unresolved. Changes: - `languages/csharp/interpret.ts`: don't strip the qualifier when the final dotted segment is a known collection accessor (`Values` / `Keys`). Preserves the dotted form so downstream resolvers can unwrap the receiver's generic type based on the suffix. - `scope-resolution/passes/compound-receiver.ts`: new `extractDictionaryArgs` helper splits `Dictionary<K, V>` at the top-level comma. In the dotted-access walk, detect trailing `.Values` / `.Keys` and return V/K via findClassBindingInScope instead of the normal class-walk (Dictionary itself isn't a local class def). - Handles nested cases: `this.data.Values` walks `this.data` recursively (resolving `data` as a field on `this`'s class) before applying the unwrap. - `scope-resolution/passes/receiver-bound-calls.ts` Case 3b: when the typeRef's trailing segment is an accessor, pass the raw dotted path to `resolveCompoundReceiverClass` without appending `()` — the extra parens would misroute to the call-expression branch. Python parity 204/204 on both flag paths; legacy C# 175/175 green; 6 C# parity failures remain. * feat(csharp-scope): parity Unit 6d — using-static member injection Closes 2 parity failures (6 → 4). `using static X.Y.Z;` now injects every public static method of class Z into the importer's module scope, so `Record("hi")` (without `Logger.` qualifier) resolves to `Logger.Record` as a free call. `languages/csharp/namespace-siblings.ts`: regex-scan each file's source for `using static X.Y.Z;` directives. For each, look up the class Z in the `X.Y` namespace bucket, walk its owning file's localDefs for method/function members with `ownerId === Z.nodeId`, and inject them as `origin: 'import'` bindings in the importer's module-scope finalized bindings map. `findCallableBindingInScope` then picks them up via its imported-bindings check. Closes: variadic `Record(params string[])` + heritage arity narrowing `WriteAudit`. Python parity 204/204 on both flag paths; legacy C# 175/175 green; 4 C# parity failures remain (interface-dispatch pass + type-based overload disambiguation). * feat(csharp-scope): parity Unit 6e — overload disambig + interface dispatch + FLAG FLIP Closes the final 4 parity failures (4 → 0). C# now runs the registry-primary scope-resolution path by default — added to MIGRATED_LANGUAGES. Changes: - `scope-resolution/scope/walkers.ts`: was already extended in Unit 6a to recognize Interface/Struct/Record/Enum as class-like owners (interface default methods get ownerIds). - `scope-resolution/passes/receiver-bound-calls.ts`: build IMPLEMENTS edge index → emit secondary `interface-dispatch` CALLS edges to every implementor's same-named member when the primary receiver-typed edge targets an Interface method (closes heritage CreateUser CALLS-count test). - `scope-resolution/passes/receiver-bound-calls.ts`: new `pickOverload` helper narrows multi-valued `membersByOwner.get(owner).get(name)` candidates by arity then argument types. Replaces the first-seen `findOwnedMember` lookup in Case 4 so receiver-typed overloaded calls pick the right def. - `scope-resolution/passes/free-call-fallback.ts`: new `pickImplicitThisOverload` walks up to the enclosing class scope and applies the same arity + argument-type narrowing for free calls inside a class body (`Lookup("alice")` → `Lookup(string)`). - `scope-resolution/workspace-index.ts`: new `membersByOwner` multi-valued index (`Map<owner, Map<name, Def[]>>`) preserves every overload alongside the existing first-seen `memberByOwner`. - `scope-resolution/graph-bridge/node-lookup.ts` + `scope-resolution/graph-bridge/ids.ts`: include parameter-types suffix in the qualified lookup key for Method nodes. Legacy parse-phase encodes the type tag into the node id (`Method:f.cs: UserService.Lookup#1~int`); without this two same-arity overloads collapsed to one lookup entry and routed to the wrong graph node. - `scope-resolution/contract/scope-resolver.ts`: new `collapseMemberCallsByCallerTarget` opt-in flag (was added in Unit 6b for member-call dedup; documented here). - `gitnexus-shared/src/scope-resolution/reference-site.ts`: new `argumentTypes` field carrying inferred per-arg types. - `scope-extractor.ts`: read @reference.parameter-types capture into `site.argumentTypes` and add it + the declaration-arity tags to KNOWN_SUB_TAGS so the anchor-detection picks the right anchor. - `languages/csharp/captures.ts`: synthesize @reference.parameter-types by inferring arg types from literal AST nodes (integer_literal → 'int', string_literal → 'string', constructor_expression → type-name, etc). - `languages/csharp/scope-resolver.ts`: opt in to `collapseMemberCallsByCallerTarget`. - `registry-primary-flag.ts`: **add CSharp to MIGRATED_LANGUAGES**. Final state: - C# parity: 175/175 green on flag-on AND flag-off. - Python parity: 204/204 green on both flag paths (no regression). - TypeScript clean. 51 → 0 failures across 18 commits on `feat/csharp-scope-resolution`. * refactor(scope-resolution): extract language-specific accessor unwrap to provider hook Optimizer pass: move C# Dictionary-family `.Values`/`.Keys` handling out of the shared `compound-receiver.ts` (where it had hardcoded regex + accessor names) into a provider-level `unwrapCollectionAccessor` hook. The shared pass now takes an arbitrary language-specific unwrap function; C# supplies its Dictionary implementation in `languages/csharp/accessor-unwrap.ts`. Related cleanup in `receiver-bound-calls.ts` Case 3b: replace the hardcoded `tail === 'Values' || tail === 'Keys'` accessor check with a try-dotted-walk-first / fall-back-to-call-form strategy. This removes the last C#-specific branch in the shared pass and makes the logic generalize cleanly to other languages that use property-style accessors for collection views (Kotlin `.size`, future languages). Changes: - `scope-resolution/contract/scope-resolver.ts`: new optional `unwrapCollectionAccessor(receiverType, accessor) => string | undefined` hook. Documented as language-specific with examples. - `scope-resolution/passes/compound-receiver.ts`: delete `extractDictionaryArgs`, accept `unwrapCollectionAccessor` via options, call it for trailing accessor segments. - `scope-resolution/passes/receiver-bound-calls.ts`: plumb the hook through to `resolveCompoundReceiverClass`, remove the C#-hardcoded Case 3b accessor check. - `languages/csharp/accessor-unwrap.ts` (new): C# Dictionary-family regex + element-type extraction. - `languages/csharp/scope-resolver.ts`: opt in. Audit outcome: everything else added across the 19 C# migration commits is either correctly scoped to `languages/csharp/` (query, captures, namespace-siblings, receiver-binding, interpret, imports) or correctly generic in shared paths (argumentTypes field, collapseMemberCallsByCallerTarget flag, overload narrowing via parameterTypes, interface-dispatch via IMPLEMENTS edges, class-like owner extension for Interface/Struct/Record/Enum, type-tagged node IDs, module-scope return-type lookup fallback). 175/175 C# green on both flag paths; 204/204 Python green on both flag paths; TypeScript clean. * refactor(scope-resolution): gate module-scope typeBinding walk-up on hook Add optional `hoistTypeBindingsToModule` to the ScopeResolver contract and gate the Module-scope walk-up in `resolveCompoundReceiverClass` on it. Only providers that hoist method return-type bindings to Module scope (C#) opt in; Python and other providers no longer traverse that fallback path. Closes the architectural leak flagged in the production-readiness review: the walk-up was unconditional and therefore widened Python's code path despite existing only for C#. No behavior change for C# (hook=true restores the prior lookup). No behavior change for Python (hook undefined = walk-up skipped, matching pre-PR behavior). Verified: - npx tsc --noEmit clean - C# unit suite 74/74 passing - C# + Python integration 388/388 passing * refactor(csharp-scope): remove as-unknown-as double casts in scope-resolver Tighten three type boundaries that were previously papered over with `as unknown as` casts: * `CsharpResolveContext.allFilePaths`: `Set<string>` → `ReadonlySet<string>`. The orchestrator only hands out a read-only view; drop the widening cast at the resolver-adapter site. * `resolveCsharpImportTarget`: call passes the narrow context directly. `WorkspaceIndex` is `unknown` in the shared contract, so the `as unknown as WorkspaceIndex` cast was gratuitous — structural assignability covers it. * `csharpMergeBindings`: drop unused `_scope: Scope` parameter. The implementation never read it; the cast chain in `scope-resolver.ts` existed only to satisfy an unused slot. LanguageProvider.mergeBindings now wraps with a tiny arrow adapter; ScopeResolver.mergeBindings passes through directly. No runtime behavior change. `grep 'as unknown as' csharp/scope-resolver.ts` returns zero matches. Verified: - npx tsc --noEmit clean - C# unit + integration 462/462 passing (incl. Python integration) * test(csharp-scope): integration fixtures for Units 6c/6d/6e runtime behavior Close the integration-coverage gap flagged in the production-readiness review. Units 6c (collection-accessor unwrap), 6d (using-static member injection), and 6e (overload disambig + interface dispatch) previously had only hook-level unit tests; the end-to-end wiring was exercised only by the parity harness. Three minimal fixtures + four new it() blocks: * csharp-collection-accessor — RenderAll iterates Dictionary<string, Widget>.Values and calls .Render(); asserts the CALLS edge lands on Widget.Render. * csharp-using-static — `using static Helpers.MathUtils;` makes Square(int) a free-callable in the consumer; asserts the CALLS edge lands on MathUtils.Square. * csharp-overload-interface — three assertions: 1. Run → Log binds to the 2-arg overload only (arity narrowing); verified via target Method node's parameterTypes.length === 2. 2. Run → Greet emits one primary edge to IGreeter.Greet plus two reason='interface-dispatch' siblings to En/FrGreeter.Greet. 3. Interface-dispatch fan-out excludes the primary target. Verified: - csharp integration 189/189 passing * docs(scope-resolution): de-c#-ify optional-hook doc-comments on contract Rewrite the doc-comments on four optional hooks so they describe the behavior and when a provider would enable it, rather than naming C# as the sole consumer. Hook names were already generic — only the comments had baked in one-language framing, which risked discouraging future reuse. Affected hooks: * unwrapCollectionAccessor * collapseMemberCallsByCallerTarget * populateNamespaceSiblings * hoistTypeBindingsToModule Language-specific rationale stays where it belongs — next to the hook assignment in `languages/csharp/scope-resolver.ts`. Zero-match grep for `C#|csharp|CSharp` in the contract file confirms the separation. No code change. * docs(csharp-scope): justify regex-based namespace-sibling detection Record why `namespace-siblings.ts` uses regex over AST walks and enumerate the known misses so the next reader has ground to stand on: * `global using static X.Y;` — no plain `using static` token. * Aliased `using static X = Y.Z;` — `=` breaks the pattern. * Attributed namespace declarations between `]` and `{`. * Multi-namespace files — first-wins attribution. * Preprocessor-gated namespace declarations — textual branch only. Rationale: the pass is file-path-driven and the tree-sitter tree isn't available at its call site (the orchestrator feeds raw fileContents); re-parsing to count namespaces would cost more than the regex walk. Refactor to AST-driven detection is deferred to a separate PR. Mirrored the known-miss list into `csharp/index.ts`'s limitations ledger so the operator-visible surface and the in-code justification stay in sync. No code change. * refactor(csharp-scope): AST-driven namespace detection with treeCache reuse Replace regex-over-source-content with tree-sitter AST walks in namespace-siblings.ts; thread the orchestrator's treeCache through the populateNamespaceSiblings hook so the pass reuses the same parse trees `extractParsedFile` already consumed (single-source-of-truth for the AST — no double-parse). Behavior gains (no longer "known misses"): * `global using static X.Y;` is now detected. * Aliased `using static X = Y.Z;` is now detected. * Attributed namespace declarations (`[attr] namespace X`) parse correctly because tree-sitter sees them as one node. * Preprocessor-gated namespace declarations parse via the grammar. Contract change (additive, optional): * `populateNamespaceSiblings` ctx now carries an optional `treeCache?: { get(filePath): unknown }`. Existing providers that don't set it on `RunScopeResolutionInput` see undefined, and the hook falls back to a fresh parse (current behavior preserved on cache miss). Limitation ledger updated in csharp/index.ts: the AST-based detection removes 4 of the 5 prior known misses; only "first-wins multi-namespace file attribution" remains. Verified: - npx tsc --noEmit clean - C# + Python integration 393/393 passing * refactor(python-scope): remove as-unknown-as casts in scope-resolver (mirrors Unit 2) Replay the C# scope-resolver cleanup on the Python side so both providers share a single clean pattern: * Drop `ws as unknown as WorkspaceIndex` — `WorkspaceIndex` is `unknown` in the shared contract, so the narrow context assigns structurally without a cast. * Drop `{ id: scopeId } as unknown as Scope` — `pythonMergeBindings` never read the scope (the parameter was `_scope`), so the stub was a type-only ghost. Signature is now `(bindings)` and the LanguageProvider slot wraps with an arrow adapter. * Drop `allFilePaths as Set<string>` — the orchestrator hands a `ReadonlySet<string>`; we copy it into a `Set` at the resolver adapter so the legacy downstream `resolvePythonImportInternal` chain (typed for mutable `Set<string>`) keeps working. The copy is O(N) once per import, trivial cost. Left intact on purpose: the `(callsite, def) → (def, callsite)` arrow wrapper on `arityCompatibility`. That's a documented shape difference between `LanguageProvider.arityCompatibility(def, callsite)` and `ScopeResolver.arityCompatibility(callsite, def)`; both providers (Python + C#) carry the same wrapper. Reconciling is a separate refactor across both contracts. No runtime behavior change. Verified: - npx tsc --noEmit clean - Python + C# unit + integration suites 529/529 passing * docs(scope-resolution): document I1-I8 invariants, source-of-truth, and same-graph guarantee Promote contract knowledge that was implicit in code into the canonical docs so future migrations and the next reviewer don't have to reverse-engineer it. contract/scope-resolver.ts: * Migration cookbook lists every optional hook (was: only the two booleans), with one-line guidance per hook including when to enable `hoistTypeBindingsToModule`. * Contract Invariants I1-I7 are now spelled out in full (was: only I1/I3/I5 summarized with a pointer to a plan file). Added new I8 "post-finalize hooks may mutate Scope.typeBindings and indexes.bindings; consumers must not freeze or snapshot before all post-finalize hooks have run". * New "Semantic-model source of truth" section: ParsedFile is the single semantic model; passes that need AST-level facts must reuse the orchestrator's treeCache rather than re-parse. * New "Same-graph guarantee" section: legacy DAG and scope-resolution emit indistinguishable edges (node identity, edge vocabulary, confidence). CI parity workflow enforces this. gitnexus-shared/src/scope-resolution/parsed-file.ts: * Added "Source-of-truth invariant" pointer paragraph. ARCHITECTURE.md (Coexistence section): * Updated migrated-language list (Python + C#). * Added "Same-graph guarantee" subsection. * Added "Semantic-model source of truth" subsection. * Filled in the ScopeResolver hook table with the five optional hooks that landed in this branch (unwrapCollectionAccessor, collapseMemberCallsByCallerTarget, populateNamespaceSiblings, hoistTypeBindingsToModule, fieldFallbackOnMethodLookup). * Added C# rows to the code-references table. Verified: - npx tsc --noEmit clean - C# + Python integration 393/393 passing * refactor(scope-resolution): consume SemanticModel as single authoritative store Unify scope-resolution and legacy parse into one symbol index per the industry pattern (Roslyn / tsc / rust-analyzer). Scope-resolution passes now consume `SemanticModel.methods` / `SemanticModel.fields` / `SemanticModel.symbols` for all symbol-keyed lookups. The legacy DAG already read from these; the drift — two parallel owner-keyed indexes populated by two writers with divergent ownerId semantics — is closed. Changes: * `MethodRegistry.lookupAllByOwner(owner, name)`: new API returning every overload without arity narrowing. Powers `findOwnedMember` / `pickOverload`. * `pipeline/run.ts` reconciliation pass: after `provider.populateOwners(parsed)`, iterate `parsed.localDefs[i]` and register methods/fields into the SemanticModel under the corrected ownerId. Idempotent — skips defs already present under `(ownerId, simple)` by nodeId, so unmigrated languages whose legacy extractor already set ownerId (C#) don't double-register. Closes the Python gap where class-body methods were invisible to `MethodRegistry` because the legacy Python method extractor couldn't resolve `enclosingClassId` at parse time. * `WorkspaceResolutionIndex` slimmed to Scope-valued maps only (`classScopeByDefId`, `moduleScopeByFile`). Dropped `memberByOwner`, `membersByOwner`, `defsByFileAndName`, `callablesBySimpleName` — all symbol-keyed duplicates of SemanticModel indexes. * Walker helpers now consume SemanticModel: - `findOwnedMember(owner, name, model)` → methods then fields fallback (ACCESSES writes target Property/Variable defs too). - `findExportedDefByName` fallback walks every Module scope's `origin === 'local'` bindings via `index.moduleScopeByFile` (preserves the module-export-visibility filter that SymbolTable.fileIndex can't cheaply encode). - `findExportedDef` reads `moduleScope.bindings` directly. * `pickOverload` in receiver-bound-calls.ts falls back to `model.fields.lookupFieldByOwner` when method lookup returns empty, fixing ACCESSES write edges that receive a Property target. * `phase.ts` threads `resolutionContext.model` into `RunScopeResolutionInput`. Boundary rule, enforced by file placement: - symbol-indexed lookups (key = nodeId / name / filePath) → `SemanticModel` - Scope-valued lookups (value = `Scope`) → `WorkspaceResolutionIndex` Research synthesized from web-researcher + Explore + best-practices + system-architect agents; canonical references: Roslyn Overview, rust-analyzer architecture, stack-graphs paper. Verified: - npx tsc --noEmit clean - C# + Python integration 393/393 passing * docs(scope-resolution): refresh comments after dropping duplicated indexes Replace references to the now-deleted `memberByOwner` / `callablesBySimpleName` index fields with comments that describe the actual lookup path (`SemanticModel` registries + scope-tied module bindings). Pure doc cleanup; no behavior change. * feat(scope-resolution): extract reconciliation pass + add parity validator Extract the SemanticModel reconciliation pass (previously inline in `pipeline/run.ts`) into a dedicated module with: * `reconcileOwnership(parsedFiles, model)` — pure function returning stats (methodsRegistered / fieldsRegistered / skippedAlreadyPresent). Idempotent; safe to re-run. * `validateOwnershipParity(parsedFiles, model, onWarn)` — dev-mode runtime validator for Contract Invariant I9. Walks every def with an `ownerId` and asserts it is reachable via `model.methods.lookupAllByOwner` or `model.fields.lookupFieldByOwner`. Soft-fails via `onWarn`; never throws. Validator is gated on both `NODE_ENV !== 'production'` and `VALIDATE_SEMANTIC_MODEL !== '0'` so production incurs zero cost but development surfaces any drift between `parsed.localDefs` ownership and the registries. 12 new unit tests cover: * happy path: method, property, Variable registration * edge case: defs without ownerId are skipped * idempotency: second call is a no-op * coexistence: defs the legacy extractor already registered (via `model.symbols.add`) are skipped on reconcile * overloads: multiple methods under the same (owner, name) * validator: no warnings after reconciliation * validator: warns on drift * validator: no-op under NODE_ENV=production * validator: no-op when VALIDATE_SEMANTIC_MODEL=0 * validator: warns on missing Property same as missing Method Verified: - npx tsc --noEmit clean - reconcile-ownership unit tests 12/12 passing - C# + Python integration 393/393 passing * refactor(scope-resolution): narrow handles + tighten required params Two small hygiene fixes that fell out of the unified-model work: * Introduce `readonlyModel: SemanticModel` in `runScopeResolution` immediately after reconciliation so the write/read phase boundary is explicit at the code level. Downstream passes (receiver-bound, free-call) receive the narrowed `SemanticModel` rather than the `MutableSemanticModel` that only the reconciliation pass needs. The type system now rejects accidental writes in the read phase. * Make `emitFreeCallFallback`'s `workspaceIndex` parameter required. It's now always passed (every caller threads it through), and the `workspaceIndex?` guard was dead code. Also drops the `| undefined` branch from `pickConstructorOrClass` which no caller can hit. No behavior change. * docs(semantic-model): document unified single-source-of-truth invariant (I9) Add Contract Invariant I9 to the ScopeResolver contract and write the single-source-of-truth + write/read phase contract into both the SemanticModel file-head and ARCHITECTURE.md. Three landing points so the rule is reachable from every entry: * contract/scope-resolver.ts — new I9 entry in the Contract Invariants list: scope-resolution passes consult SemanticModel exclusively for symbol-keyed lookups; WorkspaceResolutionIndex is reserved for Scope-valued maps. Documents the two-phase write (legacy parse + reconcileOwnership) and the narrowed-handle read posture. Calls out the reconciliation shim as transitional. * model/semantic-model.ts — new "Single-source-of-truth invariant" and "Write / read phase contract" sections in the file-head. Three ordered write phases (parse → reconcile → attachScopeIndexes), then frozen for readers. * ARCHITECTURE.md § "Semantic-model source of truth" — expanded subsection covering both invariants (ParsedFile = AST truth, SemanticModel = symbol truth), the write/read phase diagram, and the reconciliation-shim rationale. No code change. * test(scope-resolution): rewrite workspace-index test for slimmed index The test file previously asserted on \`defsByFileAndName\`, \`callablesBySimpleName\`, and \`memberByOwner\` — fields removed when symbol-keyed lookups moved to \`SemanticModel\`. Rewrite so the same invariants are asserted via the authoritative consumers: * New WorkspaceResolutionIndex shape test (scope-only maps). * \`findExportedDef\` module-export visibility tests: - keeps top-level class and function defs. - excludes class-body Variable defs (MAX_USERS = 100). - excludes class methods from module-export lookup. * \`findExportedDefByName\` fallback excludes class methods when a same-named module function exists. * \`findOwnedMember\` via the reconciled SemanticModel finds Python class methods after populateOwners + reconcileOwnership. Total assertions preserved: every invariant from the old test file is still pinned; the assertion surface shifted from the index shape to the walker helpers. Verified: - workspace-index.test.ts 8/8 passing * fix(tests): update registry-primary-flag test for C# migration The "returns exactly the flipped languages" case expected `enabled.size === 1` after toggling Python off and Go on. After the C# migration lands C# in MIGRATED_LANGUAGES, C# is default-on too — so the size is now 2 (Go + C#) unless C# is also opted out. Turn off C# alongside Python in the test setup. Added a comment noting that future migrations must add their REGISTRY_PRIMARY_<LANG>='false' line here. * refactor(scope-resolution): address PR #1019 review findings Resolves all 5 findings from the automated review on feat/csharp-scope-resolution. Shared ingestion code stays language-agnostic; C# (and every class-like language) benefits. F1 [high] Broaden class-like predicate Hoist `isClassLike` in `scope/walkers.ts` to an exported top-level helper covering Class | Interface | Struct | Record | Enum | Trait. Use it in `findClassBindingInScope`, `findEnclosingClassDef`, and `buildWorkspaceResolutionIndex` so C# records, structs, interfaces, and enums participate in scope chains and receiver binding the same way Python classes do. F2 [medium] Remove stale comment in csharp simple-hooks `csharpReceiverBinding`'s doc claimed this/base synthesis was "planned for a follow-up"; synthesis has been implemented in receiver-binding.ts since the migration landed. Rewrite the doc to describe the actual behavior (non-null TypeRef on instance-method bodies, null on static/free functions). F3 [medium] O(1) reverse lookup for classScopeId -> classDefId Add `classScopeIdToDefId: ReadonlyMap<ScopeId, string>` to `WorkspaceResolutionIndex`, populated as the inverse of `classScopeByDefId`. Replace the O(C) linear scan in `pickImplicitThisOverload` (free-call-fallback.ts) with an O(1) `Map.get` — turns per-site reverse resolution from linear in class count to constant time for every free call. F4 [low] Extract narrowOverloadCandidates shared utility New `passes/overload-narrowing.ts` centralizes the arity + argument- type narrowing previously duplicated across `pickOverload` (receiver-bound-calls.ts) and `pickImplicitThisOverload` (free-call-fallback.ts). Both callsites now share identical narrowing semantics; variadic `params T` handling is preserved. Return type is `readonly SymbolDefinition[]` with no defensive spreads (allocations saved on the hot path). F5 [low] Merge unreachable Case 5 into Case 2 `Case 5` in `receiver-bound-calls.ts` was dead code — `Case 2` pre-empted it for every static/class-name receiver. Delete Case 5 and lift its kind-aware read/write ACCESSES reason/confidence logic into Case 2 so static-style member access (e.g. `Interface.Member`, `TypeName.StaticMember`) gets the correct edge metadata. Tests - New unit tests for `narrowOverloadCandidates` covering empty input, arity filtering, variadic params, type narrowing, and fallback semantics. - New unit tests for `classScopeIdToDefId` verifying inverse invariant and empty index behavior. - New C# integration fixtures and tests: * csharp-record-base — record inheritance + `base.Save()` * csharp-struct-overloads — struct with implicit-this overload narrowing (pinned exact edge count under registry-primary) * csharp-interface-receiver-static — interface-qualified static- style call exercises the merged Case 2. - Full runs green: * scope-resolution unit: 406/406 * csharp integration (registry-primary): 197/197 * csharp integration (legacy DAG): 197/197 * python integration (regression guard): 204/204 Chore - Add `.context/` to root `.gitignore` to prevent agent scratch files from being committed. Made-with: Cursor * test(csharp-scope-resolution): address adversarial review follow-ups on PR #1019 Applies the three actionable follow-ups from the post-commit adversarial review of 5a1bce7f against DoD.md. No runtime code changes. - [medium] Strengthen bounds-only assertion in the struct-overloads suite: `methods.length` is now pinned to `toBe(2)` and the arity list to `toEqual([1, 2])`. Fixture `csharp-struct-overloads/src/Calc.cs` declares exactly two `Add` methods, so a regression that adds, drops, or merges an overload will now fail the test instead of silently passing a `>= 2` gate. - [low] Pin the merged Case 2 kind-aware branch (receiver-bound-calls.ts lines 257-289) with a dedicated fixture and three new assertions: `csharp-class-static-field-access/src/Counters.cs` exercises `ClassName.Field = value` where the receiver resolves via `findClassBindingInScope` (no typeBinding on `Counters`). The test verifies (a) two distinct ACCESSES writes are emitted from a single method (per-site dedup from graph-bridge/edges.ts:80-87), (b) `reason === 'write'`, (c) `confidence === 1.0`, and (d) no spurious CALLS edges are produced for the same sites. This is the semantic upgrade lifted from the deleted Case 5; without a pinning test a future revert of the kind-aware branch would silently drop back to `import-resolved`/`global` at 0.85 for the same sites. Read-side coverage is intentionally not asserted because the C# tree-sitter query currently emits only `write.member` captures (languages/csharp/query.ts:485-501) — a read counterpart would have no reference site today and would give a false sense of coverage. - [info] Left the `?? overloads[0]` fallback in place at receiver-bound-calls.ts:450 unchanged. With the package's current tsconfig (strict: false, no noUncheckedIndexedAccess) both the defensive fallback and a `candidates[0]!` assertion type-check identically, so the finding has no production-readiness impact. Keeping the fallback minimizes churn. Validation (local, Windows PowerShell): - `npx prettier --check test/integration/resolvers/csharp.test.ts` -> clean - `npx tsc --noEmit` -> 0 errors - `REGISTRY_PRIMARY_CSHARP=1 npx vitest run test/integration/resolvers/csharp.test.ts` -> 200/200 - `REGISTRY_PRIMARY_CSHARP=0 npx vitest run test/integration/resolvers/csharp.test.ts` -> 200/200 - `npx vitest run test/integration/resolvers/python.test.ts` -> 204/204 - `npm test` (full gitnexus suite) -> 6967 passed, 6 pre-existing failures (4x Swift overload/dedup, 1x Swift method-extraction unit, 1x Swift type-env unit, 1x LadybugDB lockfile on Windows). All six reproduce on 5a1bce7f with these follow-up changes stashed, confirming they are environment/baseline failures unrelated to this work. Swift is not in MIGRATED_LANGUAGES so the merged Case 2 path cannot affect it. Refs: PR #1019 Made-with: Cursor * refactor(scope-resolution): address full-PR review findings on PR #1019 Resolves the two remaining findings from the code-review-swarm full-PR sweep (verdict: production-ready with minor follow-ups). [low] Complete the csharp/index.ts module-layout JSDoc. `languages/csharp/index.ts` is the discovery surface for the C# scope- resolution module decomposition (per AGENTS.md). The "Module layout" list silently omitted three load-bearing modules — `accessor-unwrap.ts` (`.Values`/`.Keys` receiver-type unwrap), `namespace-siblings.ts` (AST-driven cross-file implicit-namespace visibility), and `receiver-binding.ts` (`this`/`base` type-binding synthesis). Extended the JSDoc list so the "single-concern" decomposition story is honest and the next contributor can locate the right file without grep. No behavior change. [info] Replace the non-standard `'scope-resolution: super-receiver'` edge reason with the canonical `'global'` tier. `passes/receiver-bound-calls.ts` emitted a non-canonical reason string for the super/base branch, which falls outside the vocabulary declared in ARCHITECTURE.md § Scope-Resolution Pipeline (`'import-resolved' | 'global' | 'local-call' | 'same-file' | 'interface-dispatch' | 'read' | 'write'`). Super/base calls resolve through the MRO chain rather than through import directives, so the correct canonical tier is `'global'` (same classification the legacy DAG's `toResolveResult` applies to non-same-file, non-import-scoped resolutions). Locked the contract with `rel.reason === 'global'` assertions on the existing `csharp-super-resolution` and `csharp-generic-parent- resolution` suites, both of which go through the super-branch MRO path. The `csharp-record-base` suite intentionally does not pin a reason (records don't currently emit EXTENDS edges, so the MRO lookup misses and the edge is produced by the reference-index fallback instead of the super-branch). A code comment flags the pre-existing Python-legacy asymmetry (Python legacy tier classifier marks `super()` as `'import-resolved'` because the ancestor arrives via an `import` statement); closing that gap requires realigning the legacy tier classifier and is tracked separately. Validation: - `npx tsc --noEmit` passes. - `npx prettier --check` clean on all four touched files. - `test/integration/resolvers/csharp.test.ts` — 200/200 under both `REGISTRY_PRIMARY_CSHARP=0` (legacy DAG) and `REGISTRY_PRIMARY_CSHARP=1` (registry-primary), preserving same-graph parity on the super branch. - `test/integration/resolvers/python.test.ts` — 204/204 under both `REGISTRY_PRIMARY_PYTHON=0` and `=1`. - `test/unit/scope-resolution/` — 406/406 passing. Unstaged: `gitnexus/package-lock.json` (drift from `npm install` run to resolve the pre-existing missing `jsonc-parser` dependency — not part of this change). Made-with: Cursor * test(ci): raise integration-test timeouts so slow Windows runners stop flaking The `windows-latest` CI runner for this branch was consistently failing two integration suites in ways that had nothing to do with the PR's scope-resolution changes: * `cli-e2e.test.ts` — `analyze command runs pipeline on mini-repo` hit the default 30 s vitest test timeout, which raced the test's own 30 s subprocess timeout and prevented the existing `if (result.status === null) return;` slow-CI tolerance from ever firing. That single timeout then cascaded into the downstream `cypher`/`query`/`impact` tests (which exited non-zero because the mini-repo was never indexed) and the `EPIPE handling` test. * `skills-e2e.test.ts` — `beforeAll` hooks run a full `runSkillsCli(tmpDir)` subprocess that analyzes a fixture repo and generates skills. 50 s was enough on Linux/macOS but not on slow Windows CPUs, producing "Hook timed out in 50000ms" errors and cascading test failures across every language describe block. Fix: * Bump the `analyze` test's vitest test-level timeout to 60 s so it exceeds the 30 s subprocess timeout and the slow-CI tolerance can actually activate. * Bump all 12 `runSkillsCli`-driven `beforeAll` hooks from 50 s to 120 s. No production-code behavior changes. No change to what the tests assert — only the per-test/hook wall-clock budget. Made-with: Cursor	2026-04-23 12:38:13 +01:00
Gergő Magyar	c6a291de67	feat(ingestion): ScopeExtractor driver — 5-pass CaptureMatch → ParsedFile (#919, RFC #909 Ring 2 PKG) (#965) ... * feat(ingestion): ScopeExtractor driver — 5-pass CaptureMatch → ParsedFile (#919, RFC #909 Ring 2 PKG) Kicks off Ring 2 PKG. Implements RFC §5.3 + §3.2 Phase 1: the central, source-agnostic driver that turns a language provider's `CaptureMatch[]` into a `ParsedFile` — the per-file artifact the finalize orchestrator (#921) feeds into the shared `finalize()` algorithm (#915). ## Files ### New shared contracts - `gitnexus-shared/src/scope-resolution/parsed-file.ts` Per-file extraction artifact: scopes, parsedImports, localDefs, referenceSites. Structural superset of `FinalizeFile` so the finalize orchestrator threads `ParsedFile` through unchanged. - `gitnexus-shared/src/scope-resolution/reference-site.ts` Pre-resolution usage fact: name, atRange, inScope, kind, optional callForm/explicitReceiver/arity. Converted to `Reference` records by the resolution phase (populates `ReferenceIndex`). ### Ring 1 collateral tweak - `language-provider.ts: emitScopeCaptures` now returns `Promise<readonly CaptureMatch[]>` (was `readonly Capture[]`). Pre-grouping per tree-sitter match is the provider's job — the extractor expects coherent matches, not flat captures. No consumers yet (all languages still on legacy DAG), so no breakage. Docstring updated. ### New CLI module - `gitnexus/src/core/ingestion/scope-extractor.ts` Single entry point: `extract(matches, filePath, provider): ParsedFile`. Five-pass pipeline: Pass 1 — Build scope tree. `@scope.*` → `ScopeDraft[]` via range-containment parent derivation. Honors `provider.shouldCreateScope` (skip-but-reparent-children) and `provider.resolveScopeKind`. Throws `ScopeTreeInvariantError` via `buildScopeTree` on malformed input. Pass 2 — Attach declarations + local bindings. `@declaration.*` → `SymbolDefinition` + `BindingRef { origin: 'local' }`. Default attachment: innermost containing scope. Hoisting via `provider.bindingScopeFor`. Pass 3 — Collect raw imports. `@import.*` → `ParsedImport` via `provider.interpretImport`. Attached to ParsedFile (finalize resolves owning scope in Phase 2). Pass 4 — Collect type bindings. `@type-binding.*` → `TypeRef` via `provider.interpretTypeBinding` → `scope.typeBindings`. Hoistable via `bindingScopeFor`. Pass 5 — Collect reference sites. `@reference.*` → `ReferenceSite[]`. Call form from declarative sub-tag (`@reference.call.member`) or `provider.classifyCallForm`. ### Tests - `gitnexus/test/unit/scope-resolution/scope-extractor.test.ts` 23 tests organized by pass + one end-to-end fixture exercising all 5 passes together. MockProvider emits synthetic `CaptureMatch[]` with no AST — extractor is pure given those. ## Design notes - **Source-agnostic.** No `Tree` / `SyntaxNode` types leak into the driver. Works for tree-sitter providers and COBOL's regex tagger. - **One AST walk per language.** Providers do the walk inside `emitScopeCaptures`; this driver does zero traversal. - **Invariants delegated.** `ScopeTree.buildScopeTree` enforces structural rules (non-Module has parent, parent contains child, siblings don't overlap). The extractor doesn't try to repair malformed captures. - **Sub-tag whitelist.** `@reference.receiver`, `@declaration.name`, `@import.source`, etc. are known sub-tags — excluded from anchor selection so the broadest-range heuristic doesn't mis-identify them as anchors for their topic. Bug surfaced in the end-to-end fixture test (member call with a large-range receiver) and was fixed before commit. ## Verification - `tsc --noEmit` clean (both `gitnexus-shared` and `gitnexus`) - `gitnexus-shared` build clean - 23/23 new tests pass - Full scope-resolution / model / shadow suite: **285/285 pass** ## Closes part of #909. Unblocks - #920 parse-worker integration (emit ParsedFile from the worker) - #921 finalize orchestrator (consume ParsedFile[] workspace-wide) - #922 per-language import adapters * chore(ingestion): address #919 review findings on the extractor Addresses all 5 items from the PR #965 review in-PR. ## Structural changes - **Extract `ScopeExtractorHooks` as the narrow dependency surface.** The extractor now declares its dependency on a `Pick`-narrowed subset of `LanguageProvider` (just the 6 scope-resolution hooks it actually reads). Test mocks implement exactly that interface — no more `as unknown as LanguageProvider` cast hiding missing-field bugs. Adding a new hook read becomes a compile error, not a silent test pass. (Finding 3.2) - **Remove dead `ownerDefIdFor` stub + `isOwnerKind` helper.** The function always returned `undefined` with `void innermost; void drafts;` suppressors — an incomplete-implementation signal. The code path was also misleading: creating a clone of the def with `ownerId: undefined` is structurally identical to keeping the original. Pass 2 now keeps the def as-is. Contract is documented in a code comment: providers that need `ownerId` set it from their declaration hook; `finalize` (via #914 `MethodDispatchIndex`) fills in method/field `ownerId` in a post-extraction pass that has full def visibility. (Finding 2.1) - **Standardize `filePath` threading across passes 4 and 5.** Pass 4 was reading `drafts[0]!.filePath`; pass 5 was reading `anyFilePathFromScopeTree(scopeTree)`. Both equivalent but inconsistent. Both now take `filePath` as a parameter from the top-level `extract()` call. The `anyFilePathFromScopeTree` helper is removed. (Finding 2.2) ## Documentation - **Snapshot-semantics comment on `scopeTree` + `positionIndex`.** The hooks called during Passes 2-5 receive a `scopeTree` built BEFORE any bindings/ownedDefs/typeBindings were written. Hooks MUST NOT rely on `scope.bindings` etc. being populated — they're for parent/range/kind queries only. Added a doc block at the `scopeTree`/`positionIndex` construction site so future Ring 3 implementers don't write a `classifyCallForm` that reads bindings. (Finding 2.3) ## Tests - **Regression for the anchor-vs-receiver bug** (Finding 3.1): a member-call match where `@reference.receiver` spans columns 0-10 (wider) and the call name spans 11-15 (narrower). Without the `KNOWN_SUB_TAGS` exclusion, the broadest-range heuristic would have picked the receiver; the test pins that the call name is the one that ends up in `referenceSites[0].name`. - **Mock provider now types exactly `ScopeExtractorHooks`**, no more double-cast. Any future hook added to `extract()` that isn't in `ScopeExtractorHooks` is a compile error. ## Verification - `tsc --noEmit` clean in both `gitnexus-shared` and `gitnexus` - `gitnexus-shared` build clean - 24/24 scope-extractor tests pass (+1 regression) - Full scope-resolution / model / shadow suite: **286/286 pass**	2026-04-18 19:28:51 +01:00
Gergő Magyar	e944f90879	chore(shared): apply Ring 2 SHARED review follow-ups in one diff (#964) ... * chore(shared): apply Ring 2 SHARED review follow-ups in one diff Aggregates all actionable follow-ups from the 9 Ring 2 SHARED PRs (#949–#963) before proceeding to Ring 2 PKG. No behavior changes; docstring edits, test refinements, and one structural cleanup. ## #913 (DefIndex / ModuleScopeIndex / QualifiedNameIndex) - Rename `freezeIndex` → `wrapIndex` across all three index builders. The old name implied `Object.freeze` on the wrapper, which we never applied; `wrapIndex` more accurately describes the lightweight readonly-interface wrap. Safety surface (frozen bucket arrays, frozen miss-empty array, readonly Maps) is unchanged. - Document in `buildModuleScopeIndex` JSDoc that callers must pre-normalize `filePath` keys (no path-separator canonicalization happens here). Prevents silent cross-platform misses. - Add an explicit hit-path freeze assertion in `qualified-name-index.test.ts` (the existing test covered only the miss-path `EMPTY` array). ## #914 (MethodDispatchIndex) - Differentiate the C3 and BFS test cases: both tests now use distinct MRO orderings so they prove the materializer stores whatever order the `computeMro` callback produces (not that C3 and BFS yield identical output). - Add `implementsOfCalls` counter in the first-write-wins test, and document the call-count contract in `MethodDispatchInput.implementsOf` JSDoc: `implementsOf` fires **per occurrence** in `input.owners` (not per unique owner); `computeMro` fires at most once per unique owner. Callers with expensive `implementsOf` implementations should pre-dedupe `owners`. ## #916 (resolveTypeRef) - Document the deliberate exclusion of `'Type'` from `TYPE_KINDS` (verified no extractor in `gitnexus/src/core/ingestion/` emits `type: 'Type'` for annotation-relevant symbols). - Rename the namespace-origin test from `'resolves ...'` to `'returns null for a namespace-origin binding whose def is not a type kind'`, matching the failure-case intent. ## #918 (shadow diff + aggregate) - Remove the partial re-export `export type { ShadowAgreement, ShadowDiff };` from `aggregate.ts` — it omitted `ShadowCallsite` and diverged from the top-level barrel. Consumers import all three from the `gitnexus-shared` entry point. - Fix the invalid `'wildcard'` evidence kind in `diff.test.ts` fixture (that kind is not a valid `ResolutionEvidence.kind`). Replaced with `'global-name'`, a real kind the test treats identically. ## #912 (ScopeTree / PositionIndex / makeScopeId) - Document the touching-boundary semantics on `PositionIndex.atPosition`: when siblings share a boundary point, the right (later-start) sibling wins per the existing innermost-wins sort contract. - Resolve the layer-inversion flagged by review: move `ScopeLookup` from `resolve-type-ref.ts` to `types.ts` (its natural home in the data-model layer). `scope-tree.ts` now imports `ScopeLookup` from `types.js` directly; the old re-export from `resolve-type-ref.ts` is removed per repo convention (`feedback_no_reexport`). Barrel export moved alongside. ## #917 (ClassRegistry / MethodRegistry / FieldRegistry) - Replace the dangling "try a name-match among class-like defs" comment in `lookupReceiverType` with explicit prose that callers must pre-resolve via `resolveTypeRef` if they want richer semantics. No behavior change — the function already returned `undefined` on ambiguous/missing qnames. - Fix `tieBreakKey.origin` default for pure Step-2 candidates. Type-binding-only hits no longer falsely inherit `'local'` from `ensureCandidate`'s neutral default; they now demote to `'import'` on their first type-binding hit, and only a later Step-1 lexical hit can upgrade them back to `'local'`. Keeps the Appendix B cascade faithful to the true origin. - Document `'global-name'` in `evidence.ts`: currently reserved for Ring 3's byName global index; `lookupCore` never emits it today. The weight stays live so `composeEvidence` remains exhaustive over the origin union. - Rename the mislabeled Step-7 test from `'confidence DESC is the primary key'` (which actually tested hard-shadow baseline) to `'inner scope shadows outer, yielding single result'`, and add a separate test that actually exercises multi-candidate confidence ordering (local vs wildcard at the same scope). ## Verification - `tsc --noEmit` clean (both `gitnexus-shared` and `gitnexus`) - `gitnexus-shared` build clean - Combined scope-resolution / model / shadow suite: **260/260 pass** (+1 from the new multi-candidate ordering test in #917) ## Not addressed (non-actionable) - #949 CI "failure with zero failing tests": pre-existing Swift Node 22 grammar flake unrelated to #910 scope. - #950: the two non-blocking findings were already addressed in follow-up commit `cbac32ba` (ParsedImport discriminated union + `ScopeId | null` on the two hooks). - #915: the five in-scope findings were already addressed in follow-up commit `54515a7e` (dead code, unused params, multi-hop docs, cap-hit test, stats granularity). - #915 LanguageProvider.resolveImportTarget signature divergence + `findDefById` O(F×D) perf: tracked separately as follow-up issues for the Ring 3 migration window. * chore(shared): address ce:review findings on the follow-up diff ce:review (interactive) on PR #964 surfaced two P2s and several P3s. This commit applies all `safe_auto` fixes + both manual tests in-line so the PR ships with a cleaner review trail. ## P2 fixes - **Complete `freezeIndex` → `wrapIndex` rename.** The prior commit renamed 3 of 5 sibling index files; `method-dispatch-index.ts` and `position-index.ts` still carried the old name. Now all 5 helpers use the consistent `wrapIndex` naming. (maintainability + project-standards reviewers both flagged this.) - **Add regression tests for the `recordTypeBindingHit` origin demotion.** The prior commit introduced the `tieBreakKey.origin = 'import'` demotion for Step-2-only candidates without a direct test. Added: - `registries.test.ts`: two Step-2-only siblings under the same interface, asserting deterministic DefId.localeCompare tie-break AND the stronger invariant that composeEvidence never emits a where-found signal for Step-2-only candidates (no `signals.origin`). - `position-index.test.ts`: touching-boundary test proving the right-sibling-wins rule documented in the new JSDoc. (testing + kieran-typescript + api-contract reviewers all flagged these gaps.) ## P3 fixes - Fix wrong comment in `recordTypeBindingHit` that claimed Step 1 could later upgrade a demoted origin. Step 1 runs BEFORE Step 2 — the actual upgrade path is Step 3 (`seedFromOwnerScopedContributor`). Comment now describes execution order correctly. - Fix inaccurate "re-exported there" comment in `index.ts`. `types.ts` *defines* ScopeLookup natively; it's not a re-export. Phrasing now says "defined in types.ts and exported from the type-export block above — not from this module." - Update stale `scope-tree.ts` file-header prose that still referenced `ScopeLookup` as living in #916/resolve-type-ref.ts. Now points to `./types.js` with a cross-ref to both #916 and #917 consumers. - Expand `atPosition` touching-boundary JSDoc to name the mechanism (backward scan through start-sorted array) so readers can trace the binary-search code to the claim. - Add breadcrumb to `aggregate.ts` module header pointing future readers to `./diff.ts` / the top-level barrel for `ShadowAgreement`, `ShadowCallsite`, and `ShadowDiff`. - Remove unnecessary non-null assertion in `recordTypeBindingHit`. Local `const existingMroDepth = ...` lets TS narrow to `number` in the else-branch, eliminating the `!` without behavior change. ## Verification - `tsc --noEmit` clean (both `gitnexus-shared` and `gitnexus`) - `gitnexus-shared` build clean - Combined scope-resolution / model / shadow suite: **262/262 pass** (+2 from the new origin-demotion + touching-boundary regression tests)	2026-04-18 18:40:29 +01:00
Gergő Magyar	1bf9fb4ef1	feat(shared): ClassRegistry / MethodRegistry / FieldRegistry + 7-step lookup (#917, RFC #909 Ring 2 SHARED) (#963) ... Capstone of Ring 2 SHARED. Implements RFC §4 — the shared, scope-aware resolution surface the rest of the semantic model feeds into. ## Modules (`gitnexus-shared/src/scope-resolution/registries/`) - `context.ts` — `RegistryContext` bundling ScopeTree / DefIndex / QualifiedNameIndex / ModuleScopeIndex / MethodDispatchIndex + provider hooks. Narrows Ring 1's opaque `RegistryContributor` to concrete `OwnerScopedContributor`. - `tie-breaks.ts` — `compareByConfidenceWithTiebreaks`, the RFC Appendix B cascade: confidence DESC → scope depth ASC → MRO depth ASC → ORIGIN_PRIORITY ASC → DefId.localeCompare. - `evidence.ts` — `composeEvidence(signals)` / `confidenceFromEvidence`. Translates raw walk signals into the typed `ResolutionEvidence[]` using authoritative `EvidenceWeights`. No magic numbers. - `lookup-qualified.ts`— RFC §4.5. Qualified-name fast path consumed by `resolveTypeRef` dotted fallback and by Step 6 of lookup-core. - `lookup-core.ts` — The 7-step canonical algorithm. Pure. Param- eterized by `CoreLookupParams`. - `{class,method,field}-registry.ts` — Thin wrappers over `lookupCore` that fix `acceptedKinds` + `useReceiverTypeBinding` per kind. `buildClassRegistry` / `buildMethodRegistry` / `buildFieldRegistry` factory functions. ## RFC §4.2 algorithm contract (honored verbatim) 1. Lexical scope-chain walk. Hard shadow on any `scope.bindings.has(name)` regardless of kind survivorship. 2. Type-binding resolution (methods/fields only, opt-in via `useReceiverTypeBinding`). MRO walk via `MethodDispatchIndex.mroFor`. MRO-depth-decayed weight via `typeBindingWeightAtDepth`. 3. Owner-scoped contributor — when the caller knows the receiver owner, its direct members merge in as `origin: 'local'`. 4. Kind filter — `acceptedKinds` per registry; `kind-match` evidence at weight 0 is always emitted for debuggability. 5. Arity filter — `provider.arityCompatibility` per candidate. When at least one compatible candidate exists, incompatibles are dropped; otherwise the −0.15 penalty alone disambiguates (they stay in the result, just ranked lower). 6. Global fallback — fires only when Steps 1-3 produced NO candidates AND the name is dotted. Delegates to `lookupQualified`. 7. Rank + tie-break — evidence list sorted by the Appendix B cascade. ## §4.7 invariants asserted in tests - No tier vocabulary in the return type (`Resolution`, not `TierXResult`). - Confidence is per-candidate (not per-tier). - Shadowing is a HARD filter; globals are consulted ONLY when lexically empty. - Caller can read `[0]` for one-shot answers. - `Resolution.confidence` is capped at 1.0. - `kind-match` is always emitted (weight 0). ## Unresolved-import + dynamic-unresolved evidence shape - `BindingRef.via.linkStatus === 'unresolved'` applies the `unlinkedImportMultiplier` (0.5×) to the where-found signal only. Corroborators (`arity-match`, `owner-match`, `type-binding`) remain unaffected — the RFC §4v2 capped-signal rule applies per-signal, not per-candidate. - `BindingRef.via.kind === 'dynamic-unresolved'` adds a degraded `dynamic-import-unresolved` evidence signal at weight 0.02. ## Tests (28 in registries.test.ts, 259/259 combined) Organized per RFC §4.2 step so a regression localizes to the step it broke: - Step 1: local + walk-to-parent + hard-shadow + origin=import - Step 2: explicit receiver type-binding + MRO depth decay on ancestor - Step 3: owner-scoped contributor + owner-match - Step 5: drop-incompatible-when-compatible-exists + soft-penalty-when-all- incompatible + unknown-when-no-provider - Step 6: global-qualified fires only when lexically empty + never for non-dotted names + not consulted when lexical hit exists - Step 7: tie-break cascade (inner shadows outer; defId.localeCompare final) - Corroborators: unresolved-import 0.5× cap per-signal + dynamic- unresolved 0.02 degraded signal - §4.5: lookupQualified kind filter + empty on miss + deterministic defId order for partial classes - §4.7: invariants — confidence per-candidate, capped at 1.0, kind-match always present, [0]-for-one-shot ## Known follow-up optimizations `collectOwnedMembers` in `lookup-core.ts` iterates `defs.byId.values()` for each MRO hop — O(D) per call. Acceptable for Ring 2 fixtures; a by-owner index should land before Ring 3 migrates large-workspace languages. Tracked alongside the existing `findDefById` follow-up from #915 review. ## Module placement All under `gitnexus-shared/src/scope-resolution/registries/` — consistent with the Ring 2 SHARED folder layout (#912/#913/#914/#915/#916/#918). Slight deviation from the issue's `gitnexus-shared/src/registries/` suggestion for consistency with siblings. ## Part of - Parent: #909 - Depends on (code): #910, #911, #912, #913, #914, #915, #916, #918. - Closes the Ring 2 SHARED delivery band. Unblocks Ring 2 PKG (#919–#925 bridges to the gitnexus/ CLI package) and Ring 3 language migrations.	2026-04-18 17:58:26 +01:00
Gergő Magyar	a9a5e1c388	feat(shared): SCC-aware finalize algorithm with bounded fixpoint (#915, RFC #909 Ring 2 SHARED) (#962) ... * feat(shared): SCC-aware finalize algorithm with bounded fixpoint (#915, RFC #909 Ring 2 SHARED) Implements RFC §3.2 Phase 2 as pure logic in `gitnexus-shared`. Takes per-file parse output and returns linked `ImportEdge[]` + materialized module-scope bindings, fully language-agnostic (target resolution, wildcard expansion, and binding precedence all go through caller hooks). Three-phase algorithm: 1. Tarjan SCC over the file-level import graph (iterative, deterministic node order, O(V+E)). Returns SCCs in reverse-topological order so leaves finalize before dependents — and so disjoint SCCs are explicitly surfaced for parallel-processing callers. 2. Per-SCC bounded fixpoint. For each SCC in topo order, iterate up to `N = |intra-SCC edges|`; each pass tries to resolve every still- unlinked edge by looking up the imported name in the target file's local defs. Stops early when no progress. Edges still unlinked after the cap get `linkStatus: 'unresolved'` — keeps malformed inputs bounded and preserves the RFC §4v2 capped-signal contract for unresolved markers. 3. Wildcard expansion + module-scope binding materialization. For each `wildcard` ParsedImport that linked to a module, expand via `expandsWildcardTo` into one `wildcard-expanded` ImportEdge per exported name. Bindings per module scope are the merge of local defs (`origin: 'local'`), named / alias / reexport imports (`origin: 'import' | 'reexport'`), namespace imports (`origin: 'namespace'`), and wildcard expansions (`origin: 'wildcard'`), with precedence delegated to `provider.mergeBindings`. Dynamic imports rule: `kind: 'dynamic-unresolved'` passes through as an ImportEdge with `targetFile: null` and no BindingRef. Re-export flattening: reexport edges land with `transitiveVia: [targetFile]`. Multi-hop chains settle iteratively across the fixpoint. Types: - Adds `'wildcard'` variant to ParsedImport (parse-time signal for `import * from M`). The finalize-only `'wildcard-expanded'` ImportEdge kind is unchanged and remains finalize output only, as documented. - Exports `finalize` + `FinalizeFile` / `FinalizeInput` / `FinalizeHooks` / `FinalizeOutput` / `FinalizedScc` / `FinalizeStats`. Simple-name derivation: `deriveSimpleName` uses `def.qualifiedName` as the authoritative source (tail after the last `.`). Defs without a qualifiedName are not name-resolvable by this algorithm — an explicit design choice that trades strictness for predictability (no heuristic nodeId parsing). Tests (20, all passing): - Trivial: empty workspace · acyclic resolution · unresolvable target (file + name) · dynamic-unresolved passthrough. - Cycles: A↔B two-file cycle linked · cycles packed into SCC with isCycle=true · disjoint cycles produce disjoint SCCs · mixed linked/unresolved edges reported correctly in stats. - Wildcards: one ImportEdge per exported name · unresolved wildcards survive as single edges · expanded bindings carry origin='wildcard'. - Reexports: transitiveVia carries the intermediate file path. - Aliased + namespace: alias preserves targetExportedName under its local name · namespace links to module scope even without a module-def. - Bindings: locals land as origin='local' · imports layer on via mergeBindings · mergeBindings can drop existing (last-write-wins precedence honored). - SCC-DAG: reverse-topological ordering verified (leaf first). Combined scope-resolution / model / shadow suite: 229/229 pass. `tsc --noEmit` clean in both `gitnexus-shared` and `gitnexus`. Closes part of #909. Unblocks #917 (Registry.lookup's import-chain fast path consumes finalized ImportEdges); unblocks Ring 3 language migrations (per-language providers supply FinalizeHooks implementations). * chore(shared): address #915 review findings — dead code, docs, tests Review thread on PR #962. Code changes: - Remove dead `resolvedTargets` map + `keyFor` + `ParsedImportKey` type alias. The map was populated but never read; originally intended to cache / dedup resolutions for later phases but that path was never wired (finding 1.1). - Drop unused params (`_edgeIndex`, `_hooks`, `_workspace`) from `tryFinalize`. No planned fixpoint-state consultation; no reason to keep them reserved (finding 2.1). Documentation: - `FinalizeFile.localDefs` now documents the multi-hop re-export contract explicitly: `finalize` looks names up in the target's static `localDefs`; if B only re-exports from C and doesn't surface the name in its own localDefs, A's import of that name from B will hit the cap and be marked unresolved. Parsers that want multi-hop chains to settle end-to-end must include re-exported names in the intermediate file's localDefs (finding 1.2). - `FinalizeStats` now documents its counting granularity: all edge counters are per-`ParsedImport`, not per-materialized-`ImportEdge`. A wildcard expanding to N exports counts as one linked edge; dynamic-unresolved pass-throughs count as linked. The bindings map is the authoritative "has a BindingRef" source (finding 3.2). Tests (2 added, 22 total in finalize-algorithm.test.ts, 231/231 combined): - Explicit cap-hit → `linkStatus: 'unresolved'` assertion for a cycle where the name-level lookup never succeeds (distinct from `targetFile: null`; cap exhaustion path) (finding 3.1). - Multi-hop re-export contract test: demonstrates both variants — intermediate B WITHOUT X in localDefs → unresolved; B WITH X in localDefs → resolved to the original source DefId (finding 1.2). Not addressed (filed as follow-up issues): - LanguageProvider.resolveImportTarget vs FinalizeHooks signature divergence (finding 1.3) — pre-Ring-3 concern. - findDefById O(F×D) scan in Phase 5 (finding 4.1) — acceptable for Ring 2; optimize before large-workspace Ring 3 migrations.	2026-04-18 17:26:07 +01:00
Gergő Magyar	8cf9ae0e0d	feat(shared): ScopeTree + PositionIndex + makeScopeId (#912, RFC #909 Ring 2 SHARED) (#961) ... Implements the scope-tree spine and position-indexed lookup as pure logic in `gitnexus-shared`. Generalizes the `enclosingFunctions` pattern from closed PR #902 to arbitrary `ScopeKind`s. Three modules under `gitnexus-shared/src/scope-resolution/`: 1. `scope-id.ts` — `makeScopeId({filePath, range, kind})` builds the canonical RFC §2.2 shape `scope:{filePath}#{startLine}:{startCol}-{endLine}:{endCol}:{kind}` and interns the result through a process-local pool so repeated calls with structurally identical inputs return the same string reference. `clearScopeIdInternPool()` exported for test isolation. 2. `scope-tree.ts` — `buildScopeTree(scopes)` validates invariants and returns an immutable `ScopeTree`: - `getScope(id)` / `getParent(id)` / `getChildren(id)` / `getAncestors(id)` - Implements the `ScopeLookup` contract from #916, so `resolveTypeRef` can consume a `ScopeTree` directly (test included). Invariants enforced (throw `ScopeTreeInvariantError` on violation): - Non-Module scopes must have a parent. - Parent must exist in the supplied set. - Parent range STRICTLY contains child range (equal ranges rejected). - Sibling ranges under the same parent do not overlap. Ranges that merely touch at the boundary (`a.end == b.start`) are accepted. - Parent and child live in the same filePath. - Duplicate scope ids are rejected. 3. `position-index.ts` — `buildPositionIndex(scopes)` produces a `PositionIndex` with `atPosition(filePath, line, col)`. Per-file sorted array; binary-search the upper bound of `start ≤ query`, scan backward through the prefix, return the first containing hit. Complexity: `O(log N_file + D)` typical (D = lexical depth ≤ ~10); degrades to `O(N_file)` only under pathological inputs (many scopes starting at the same position). "Innermost wins" falls out of the sort + backward-scan contract because `ScopeTree`'s invariants guarantee that scopes containing a point form an ancestor chain. Types: - `ScopeTree` now exported from `scope-tree.ts`. The Ring 1 opaque placeholder in `types.ts` has been removed; LanguageProvider hooks that previously took `ScopeTree = unknown` now receive the concrete interface (CLI `tsc --noEmit` passes — no existing callers rely on the opaque shape). Tests (39, all passing): - scope-id: canonical shape · all six ScopeKinds encoded · identity equality (same inputs → same reference) · distinguished by filePath / range / kind · purity under repeated calls · intern-pool clear preserves canonical shape. - scope-tree: empty tree · single module · nested Module→Class→Function · multiple siblings input-order preserved · ScopeLookup integration with resolveTypeRef · frozen children and ancestor arrays · all six invariant violations (non-Module orphan, parent-not-found, parent doesn't contain, parent == child, siblings overlap, cross-file parent, duplicate id) · boundary-touching siblings accepted. - position-index: empty · unindexed filePath · before/after-file queries · start/end inclusivity · innermost-wins for nested / co- starting / co-ending / same-line scopes · sibling dispatch · multi- file isolation · size · id-dedup. Combined scope-resolution / model / shadow suite: 190/190 pass. `tsc --noEmit` clean in both `gitnexus-shared` and `gitnexus`. Closes part of #909. Unblocks #917 (`Registry.lookup` needs the scope spine); makes `ScopeLookup` in #916 concrete without API churn.	2026-04-18 16:41:38 +01:00
Gergő Magyar	5d76dbcfa2	feat(shared): MethodDispatchIndex materialized view over HeritageMap (#914, RFC #909 Ring 2 SHARED) (#960) ... Implements RFC §3.1 `MethodDispatchIndex`: a two-way materialized view keyed by `DefId` for O(1) method-dispatch resolution: - `mroByOwnerDefId` — owner class → full MRO ancestor chain (excludes self, per-language strategy order) - `implsByInterfaceDefId` — interface/trait → classes that implement it **Not an MRO implementation.** `buildMethodDispatchIndex` is a pure aggregator that calls back into caller-provided `computeMro` and `implementsOf` functions. The five existing strategies (Python C3, Ruby kind-aware, Java/Kotlin linear, Rust qualified-syntax, COBOL none) stay where they are today (`model/resolve.ts`, `languages/ruby.ts`); this index does not reimplement them. Why callbacks rather than a shared registry: the strategies depend on the CLI's `HeritageMap` + `SemanticModel`. Migrating both to `gitnexus-shared` is out of scope for #914; callbacks let the shared build stay pure. Module placement: `gitnexus-shared/src/scope-resolution/method-dispatch-index.ts` for consistency with the other RFC §3.1 indexes (#913 DefIndex / ModuleScopeIndex / QualifiedNameIndex; #916 resolveTypeRef). Safety surface mirrors sibling indexes: - First-write-wins on duplicate owners. - Repeated (interface, owner) pairs deduplicated. - Stored arrays are `Object.freeze`d; caller mutation of the source array does not leak into the index. - Miss returns a shared frozen empty array. Tests (19, all passing): empty input, single-inheritance chain, Python C3 diamond, Java BFS, Ruby kind-aware mixin, Rust qualified-syntax empty, interface inversion (single, multiple, ordered), dedup within and across callback calls, frozen miss + bucket arrays, callback-array isolation, readonly Map iteration. Closes part of #909.	2026-04-18 16:28:46 +01:00
Gergő Magyar	56e32b310b	feat(shared): resolveTypeRef strict single-return type resolver (#916, RFC #909 Ring 2 SHARED) (#959) ... Implements RFC §4.6: a strict, pure resolver for `TypeRef`s used by `Registry.lookup` Step 2 (type-binding propagation) and by any caller that wants the single best type-target for an annotation without paying for the full evidence pipeline. Algorithm (strict): 1. Walk the scope chain from `ref.declaredAtScope`: - Return the first binding for `rawName` whose origin is in `{'local','import','namespace','reexport'}` AND whose `def.type` is a type-kind (class-like, interface-like, enum-like, alias-like). - If bindings exist but none qualify (non-type shadow, wildcard-only origin), return null immediately — do NOT fall through to the global qualified-name index. 2. If `rawName` is dotted and the scope walk produced no match, consult `QualifiedNameIndex.byQualifiedName`. Only accept a UNIQUE type-kind hit; ambiguous or non-type results return null. `'wildcard'` is deliberately excluded from strict origins — a wildcard-expanded name is too loose to anchor type resolution. Module placement: `gitnexus-shared/src/scope-resolution/resolve-type-ref.ts` (alongside sibling indexes) rather than the issue's suggested `gitnexus-shared/src/resolve-type-ref.ts`, for consistency with the rest of the RFC §2/§3 surface. A minimal `ScopeLookup` interface is declared inline so #916 ships standalone; #912's `ScopeTree` will satisfy this contract without change. Closes part of #909.	2026-04-18 16:09:54 +01:00
Gergő Magyar	ac2012e5ed	feat(shared): DefIndex / ModuleScopeIndex / QualifiedNameIndex (#913, RFC #909 Ring 2 SHARED) (#958) ... Three flat O(1) indexes + pure build functions over per-file artifacts. Contract-only; no runtime behavior change yet — consumers (#917 Registry lookups, #915 SCC finalize, #919 ScopeExtractor) wire in later. Each index follows the same shape: - build function: flat input list → frozen immutable index - public interface: readonly Map + get/has/size accessors - first-write-wins on id/filePath collisions (upstream bug signal) - pure, side-effect-free, safe to call repeatedly DefIndex — the global "what is this id?" lookup gitnexus-shared/src/scope-resolution/def-index.ts buildDefIndex(defs: readonly SymbolDefinition[]): DefIndex byId: ReadonlyMap<DefId, SymbolDefinition> Consumed by Registry.lookup (#917) to materialize DefId[] hits back to full SymbolDefinition records. ModuleScopeIndex — `filePath → moduleScopeId` for cross-file hops gitnexus-shared/src/scope-resolution/module-scope-index.ts buildModuleScopeIndex(entries): ModuleScopeIndex byFilePath: ReadonlyMap<string, ScopeId> Consumed by the SCC finalize link pass (#915) to resolve ImportEdge.targetFile to a concrete module scope in constant time. QualifiedNameIndex — cross-kind qualified-name fast path gitnexus-shared/src/scope-resolution/qualified-name-index.ts buildQualifiedNameIndex(defs: readonly SymbolDefinition[]): QualifiedNameIndex byQualifiedName: ReadonlyMap<string, readonly DefId[]> Returns DefId[] (not a single DefId) because partial classes, method overloads, and cross-kind collisions can legitimately share a qualifiedName. Callers filter by acceptedKinds at the lookup site. Consumed by Registry.lookup qualified fast path + resolveTypeRef dotted fallback (#916, #917). Barrel re-exports added to gitnexus-shared/src/index.ts so consumers import from 'gitnexus-shared' rather than deep paths. Tests (gitnexus/test/unit/scope-resolution/, 23 total): def-index.test.ts (6): empty, single def, multiple distinct, first-write-wins collision, missing id returns undefined, byId direct iteration module-scope-index.test.ts (6): empty, single entry, multiple files, first-write-wins on duplicate filePath, missing returns undefined, byFilePath direct iteration qualified-name-index.test.ts (11): empty, single qnamed def, partial classes accumulate, input-order preservation, qname separation, skip undefined/empty qname, pair dedup, cross-kind indexing, frozen-empty-array on miss, direct iteration Verification: - gitnexus-shared + gitnexus build clean (tsc + scripts/build.js) - test/unit/scope-resolution: 23/23 pass - model + shadow + scope-resolution combined: 129/129 pass - No runtime consumer wiring yet — indexes are standalone library functions that #915, #917, #919 will import when ready Depends on #910 (SymbolDefinition, DefId, ScopeId types — already on main). Unblocks #915 (finalize algorithm), #917 (Registry.lookup), #919 (ScopeExtractor materialization).	2026-04-18 15:59:34 +01:00
Gergő Magyar	22f0beb057	feat(shared): shadow-mode diff + aggregate — full implementation (#918, RFC #909 Ring 2 SHARED) (#951) ... Replaces the scaffold stubs with working pure-logic implementations plus unit-test coverage for both functions. Unblocks Ring 2 PKG #923 (shadow harness) to consume a concrete library instead of throwing scaffolds. gitnexus-shared/src/scope-resolution/shadow/diff.ts `diffResolutions(callsite, legacy, newResult): ShadowDiff` - [0] on each side is the top match - both empty → 'both-empty', delta [] - legacy empty only → 'only-new', delta = new top evidence - new empty only → 'only-legacy', delta = legacy top evidence - same top nodeId → 'both-agree', delta [] - different nodeIds → 'both-disagree', delta = symmetric difference of evidence kinds (legacy-only first in input order, then new-only) Evidence identity is `ResolutionEvidence.kind` — weight/note differences for the same kind do NOT produce delta entries. Rationale: the aggregator wants to know which *signals* explain a disagreement, not fluctuations in calibration values. gitnexus-shared/src/scope-resolution/shadow/aggregate.ts `aggregateDiffs(diffs, now?): ShadowParityReport` - buckets by `SupportedLanguages` - tallies agreements, evidence-breakdown (divergences only — agree and empty rows do not contribute) - parity = bothAgree / (totalCalls - bothEmpty), yields 0 (not NaN) when the denominator is 0 - perLanguage sorted alphabetically by enum value for stable output - evidenceBreakdown internally sorted by kind for stable output - overall = column-wise sum across languages - `now` parameter makes generatedAt deterministic in tests gitnexus-shared/src/index.ts Re-exports the full shadow API: diffResolutions, aggregateDiffs, and all their types (ShadowAgreement, ShadowCallsite, ShadowDiff, LanguageParityRow, ShadowParityReport). gitnexus/test/unit/shadow/diff.test.ts (13 tests) - 5 agreement outcomes - symmetric-by-kind evidence delta (disjoint, overlapping, fully-overlapping) - weight-only differences produce no delta - top-match only (ignores indices beyond [0]) - callsite passthrough - delta ordering (legacy-only first, input order preserved) gitnexus/test/unit/shadow/aggregate.test.ts (9 tests) - empty input - single language, all agree / mixed / all empty - multi-language bucketing + overall sum - alphabetical language sort - evidence breakdown scope - determinism via injected `now` + JSON round-trip identity Verification: - gitnexus-shared + gitnexus build clean (tsc + scripts/build.js) - test/unit/shadow: 22/22 pass - test/unit/model + test/unit/shadow combined: 106/106 pass - No runtime behavior changes (shadow is invoked by #923, not yet wired) Stacked on main (af1d278a). Depends on types from #910 (merged). Unblocks: #923 (Ring 2 PKG — shadow harness wiring) — concrete library to consume instead of scaffold stubs. Plan: docs/plans/2026-04-18-001-refactor-911-senior-hooks-redesign-plan.md is about #911; #918's scope is the scaffold+fill-in described in the PR description of #951.	2026-04-18 15:32:51 +01:00
Gergő Magyar	af1d278a7e	feat(shared,ingestion): extend LanguageProvider with scope-resolution hooks (#911, RFC #909 Ring 1) (#950) ... Adds the 14 optional scope-resolution hooks from RFC #909 §5.2 to `LanguageProviderConfig` plus the supporting input/output types in `gitnexus-shared`. Contract-only; no runtime behavior changes. Review-driven refinements (addresses two non-blocking review comments on #950): 1. `ParsedImport` is now a 5-variant discriminated union, not a flat record. Each variant carries only its legal fields so invalid shapes are compile errors: - 'named', 'alias', 'namespace', 'reexport', 'dynamic-unresolved' 'wildcard-expanded' is deliberately excluded — finalize materializes that kind; a provider must never emit it at parse time. 'reexport' is a first-class parse-phase variant so syntactically- detectable re-exports (TS `export { X } from './y'`, Rust `pub use foo::bar`) keep their parse-time signal through to finalize rather than being re-derived by the SCC pass. `namespace` gains an `importedName` field so `import numpy as np` can carry both `localName: 'np'` and `importedName: 'numpy'`. `dynamic-unresolved.targetRaw` is `string | null` (was mandatory null) so providers can emit the unresolvable expression text for diagnostics when available. 2. `bindingScopeFor` and `importOwningScope` return type changed from `ScopeId` to `ScopeId | null`, aligning with the X | null convention used by the 12 sibling optional hooks (receiverBinding, resolveScopeKind, interpretTypeBinding, …). `null` = delegate to the central default. Enables partial overrides — a JS provider can return a hoisted scope for `var` and `null` for `let`/`const` without re-implementing the default lookup. Both hooks also gain a purity JSDoc contract: same inputs yield the same ScopeId (or null) across invocations; no closure over mutable state. Required to keep scope-tree construction deterministic. A richer callable-defaults pattern (typed BindingScopeDefaults / ImportOwningDefaults helper interfaces on a `defaults` parameter) was considered and deferred to Ring 2 PKG #919, where the concrete ScopeExtractor will exist to inform the helper shape. Designing that pattern before the first consumer would set cross-hook precedent based on a single motivating example. Supporting types added to gitnexus-shared/src/scope-resolution/types.ts: - CaptureMatch, ParsedImport, ParsedTypeBinding - WorkspaceIndex, ScopeTree (opaque placeholders until Ring 2) - Callsite 14 hooks added to LanguageProviderConfig (all optional): Parse phase: emitScopeCaptures, interpretImport, receiverBinding, interpretTypeBinding, resolveScopeKind, shouldCreateScope, bindingScopeFor Finalize phase: resolveImportTarget, expandsWildcardTo, importOwningScope, mergeBindings Reference-extraction phase: classifyCallForm Resolution phase: shouldShadow, arityCompatibility Verification: - gitnexus-shared builds clean (tsc) - gitnexus builds clean (scripts/build.js) - test/unit/model: 84/84 pass — no regressions - No provider needs updating (all hooks optional) - No BindingScopeDefaults/ImportOwningDefaults/defaults parameter introduced (deferred to #919) Stacked on #910 (merged as afc0a8b6); rebased on main. Tracking: #909 (meta). Unblocks Ring 2 PKG (#919 ScopeExtractor, #922 import adapters) and all Ring 3 per-language migrations. Plan: docs/plans/2026-04-18-001-refactor-911-senior-hooks-redesign-plan.md	2026-04-18 14:54:51 +01:00
Gergő Magyar	afc0a8b6c5	feat(shared): add scope-resolution types + constants (#910, RFC #909 Ring 1) (#949) ... Lands the authoritative data model and constants for the pure scope-based resolution RFC (#909) as Ring 1, part 1. No runtime behavior changes — types + constants only. New in gitnexus-shared/src/scope-resolution/: - types.ts — Scope, ScopeKind, ScopeId, DefId, Range, Capture, BindingRef, ImportEdge, TypeRef, Resolution, ResolutionEvidence, Reference, ReferenceIndex, LookupParams, RegistryContributor - evidence-weights.ts — EvidenceWeights constant map + typeBindingWeightAtDepth (RFC Appendix A) - origin-priority.ts — ORIGIN_PRIORITY constant map for deterministic tie-breaks (RFC Appendix B) - language-classification.ts — LanguageClassification type + LanguageClassifications map (production × 14, experimental × 2 for vue/cobol; governs Ring 4 DAG-retirement gate) - symbol-definition.ts — SymbolDefinition moved from gitnexus/src/core/ingestion/model/symbol-table.ts so scope-resolution types can reference it from the shared package Consumer updates: - symbol-table.ts: removes local SymbolDefinition declaration; imports from gitnexus-shared - model/index.ts: drops SymbolDefinition from barrel re-export per "direct imports from gitnexus-shared" convention (see gitnexus-shared feedback in project memory) - 9 source files + 5 test files: import SymbolDefinition directly from 'gitnexus-shared' Verification: - gitnexus-shared builds clean (tsc) - gitnexus builds clean (scripts/build.js) - 131/132 unit test files pass; 3767 tests green - Zero behavior changes; SymbolDefinition shape unchanged Blocks: #911 (LanguageProvider hook interface extensions) and all of Ring 2 (#912-#925). Closes part of #909.	2026-04-18 12:55:09 +01:00