GitNexus/gitnexus/test/unit
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
..
call-routing feat(ingestion): language-agnostic heritage extractor with config+factory pattern (#890) 2026-04-17 17:51:17 +01:00
group feat(extractors): detect jQuery $.ajax/$.get/$.post and axios object-form as HTTP consumers (#887) 2026-04-16 18:36:24 +01:00
import-resolution feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
model feat(shared): add scope-resolution types + constants (#910, RFC #909 Ring 1) (#949) 2026-04-18 12:55:09 +01:00
named-bindings refactor: SICP-informed LanguageProvider architecture (#488) 2026-03-24 13:42:39 +00:00
scope-resolution feat(shared): SCC-aware finalize algorithm with bounded fixpoint (#915, RFC #909 Ring 2 SHARED) (#962) 2026-04-18 17:26:07 +01:00
shadow feat(shared): shadow-mode diff + aggregate — full implementation (#918, RFC #909 Ring 2 SHARED) (#951) 2026-04-18 15:32:51 +01:00
ai-context.test.ts refactor(cli): trim duplicated ai-context CLAUDE.md block (#904) 2026-04-18 07:10:44 +01:00
analyze-api.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
analyze-job.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
api-graph-streaming.test.ts [codex] fix large repository graph loading (#732) 2026-04-09 17:40:24 +01:00
ast-cache.test.ts fix: guard createASTCache against zero maxSize to prevent LRU cache crash 2026-03-02 08:47:20 +00:00
ast-utils.test.ts feat(embeddings): AST-aware chunking with offset-based splitting (#889) 2026-04-16 22:55:04 +01:00
binding-accumulator.test.ts refactor(pipeline): DAG-based phase architecture + container-logic extraction to LanguageProvider (#809) 2026-04-13 20:31:05 +01:00
bm25-search.test.ts refactor: migrate from KuzuDB to LadybugDB v0.15 (#275) 2026-03-15 15:53:01 +00:00
call-extraction.test.ts feat(ingestion): language-agnostic call extractor with config+factory pattern (#877) 2026-04-16 11:45:30 +01:00
call-form.test.ts Extract registries into model/ module with SemanticModel interface (#786) 2026-04-12 01:06:55 +01:00
call-processor.test.ts Extract registries into model/ module with SemanticModel interface (#786) 2026-04-12 01:06:55 +01:00
calltool-dispatch.test.ts feat(mcp): rank context/impact disambiguation candidates and expose kind/file_path hints (#888) 2026-04-18 12:52:42 +01:00
chunker.test.ts feat(embeddings): AST-aware chunking with offset-based splitting (#889) 2026-04-16 22:55:04 +01:00
cli-commands.test.ts feat: configure eslint with unused import removal (#564) 2026-03-28 15:28:09 +00:00
cli-index-help.test.ts fix: address PR review — remove redundancies and add wiki help test 2026-03-25 11:39:37 +05:30
cobol-copy-expander.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
cobol-preprocessor.test.ts feat: configure eslint with unused import removal (#564) 2026-03-28 15:28:09 +00:00
cohesion-consistency.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
community-processor.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
compatible-stdio-transport.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
cors.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
cross-file-impl.test.ts refactor(pipeline): DAG-based phase architecture + container-logic extraction to LanguageProvider (#809) 2026-04-13 20:31:05 +01:00
cross-file.test.ts refactor(pipeline): DAG-based phase architecture + container-logic extraction to LanguageProvider (#809) 2026-04-13 20:31:05 +01:00
csv-escaping.test.ts refactor: migrate from KuzuDB to LadybugDB v0.15 (#275) 2026-03-15 15:53:01 +00:00
dart-import-resolver.test.ts refactor(ingestion): split ImportSemantics into per-strategy hooks (Strategies 1-4) (#886) 2026-04-16 19:31:44 +01:00
dart-type-extractor.test.ts feat: configure eslint with unused import removal (#564) 2026-03-28 15:28:09 +00:00
embedder.test.ts test: add test suite with vitest (unit + integration + fixtures) 2026-03-01 20:07:02 +05:30
embedding-chunking.test.ts feat(embeddings): AST-aware chunking with offset-based splitting (#889) 2026-04-16 22:55:04 +01:00
embedding-pipeline.test.ts feat(embeddings): AST-aware chunking with offset-based splitting (#889) 2026-04-16 22:55:04 +01:00
entry-point-scoring.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
eval-formatters.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
expo-routes.test.ts feat: add Expo Router file-based route detection (#503) 2026-03-25 11:05:55 +00:00
extract-element-type-from-string.test.ts feat: Phase 6 type resolution — for-loop Tier 1c, pattern matching, container descriptors, 10-language coverage (#318) 2026-03-17 17:10:22 +00:00
extract-generic-type-args.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
fetch-reason-parsing.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
field-extraction.test.ts Extract registries into model/ module with SemanticModel interface (#786) 2026-04-12 01:06:55 +01:00
framework-detection.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
git-clone.test.ts Fix security issues and critical bugs found in code review (#709) 2026-04-10 05:20:29 +01:00
git-utils.test.ts feat: configure eslint with unused import removal (#564) 2026-03-28 15:28:09 +00:00
git.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
graph.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
has-method.test.ts feat: MethodExtractor configs for Python, PHP, Swift, Dart, Rust, Ruby (#624) 2026-04-03 16:11:31 +01:00
heritage-extraction.test.ts feat(ingestion): language-agnostic heritage extractor with config+factory pattern (#890) 2026-04-17 17:51:17 +01:00
heritage-map.test.ts Extract registries into model/ module with SemanticModel interface (#786) 2026-04-12 01:06:55 +01:00
heritage-processor.test.ts Extract registries into model/ module with SemanticModel interface (#786) 2026-04-12 01:06:55 +01:00
hooks.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
http-embedder.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
hybrid-search.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
ignore-service.test.ts fix(ignore): respect negation patterns in .gitnexusignore (#654) 2026-04-06 08:32:47 +01:00
impact-batching-grouping.test.ts feat(group): add sync pipeline, CLI, MCP tools, and monorepo fixture 2026-04-02 00:40:31 +03:00
impact-confidence.test.ts feat: METHOD_IMPLEMENTS edges, overload disambiguation, MethodExtractor unification (#574) (#642) 2026-04-04 18:41:47 +01:00
import-processor.test.ts Extract registries into model/ module with SemanticModel interface (#786) 2026-04-12 01:06:55 +01:00
import-resolver-factory.test.ts fix(python): avoid local matches for external dotted imports (#899) 2026-04-17 11:35:59 +01:00
index-repo-command.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
ingestion-utils.test.ts feat: METHOD_IMPLEMENTS edges, overload disambiguation, MethodExtractor unification (#574) (#642) 2026-04-04 18:41:47 +01:00
isWriteQuery.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
jcl-parser.test.ts feat: configure eslint with unused import removal (#564) 2026-03-28 15:28:09 +00:00
language-skip.test.ts feat(ingestion): respect .gitignore and .gitnexusignore during file discovery (#231) 2026-03-16 13:26:20 +00:00
lazy-action.test.ts Improve MCP startup compatibility and lazy-load CLI commands (#207) 2026-03-07 07:47:09 +00:00
lbug-embedding-hashes.test.ts feat(embeddings): AST-aware chunking with offset-based splitting (#889) 2026-04-16 22:55:04 +01:00
local-backend-maxbuffer.test.ts fix: ENOBUFS in detect_changes by setting maxBuffer on git/rg execFileSync (#957) 2026-04-18 15:58:31 +01:00
method-extraction.test.ts refactor(pipeline): DAG-based phase architecture + container-logic extraction to LanguageProvider (#809) 2026-04-13 20:31:05 +01:00
method-props.test.ts feat: same-arity overload disambiguation via type-hash suffix (#651) (#658) 2026-04-05 21:51:55 +01:00
mro-processor.test.ts fix: prevent stack overflow and memory exhaustion on large repo analysis (#814) 2026-04-13 20:08:49 +01:00
noise-filter.test.ts refactor: split global BUILT_IN_NAMES into per-language provider fields (#523) 2026-03-26 12:15:29 +00:00
parse-diff-hunks.test.ts fix: map diff hunks to symbol line ranges in detect_changes (#779) 2026-04-11 11:29:52 +01:00
parse-impl-fallback.test.ts refactor(pipeline): DAG-based phase architecture + container-logic extraction to LanguageProvider (#809) 2026-04-13 20:31:05 +01:00
parser-loader.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
phase-timer.test.ts feat(search): per-phase timing instrumentation for the query pipeline (#953) 2026-04-18 16:30:07 +01:00
pipeline-exports.test.ts test: add test suite with vitest (unit + integration + fixtures) 2026-03-01 20:07:02 +05:30
pipeline-runner.test.ts refactor(pipeline): DAG-based phase architecture + container-logic extraction to LanguageProvider (#809) 2026-04-13 20:31:05 +01:00
process-processor.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
receiver-extraction.test.ts Fix HTTP client vs Express route detection and Spring interface attribution (#780) 2026-04-11 11:24:47 +01:00
rel-csv-split.test.ts fix(lbug): wait for read stream close in splitRelCsvByLabelPair (Windows ENOTEMPTY) (#832) 2026-04-15 08:59:09 +01:00
repo-manager.test.ts feat: configure eslint with unused import removal (#564) 2026-03-28 15:28:09 +00:00
resolve-enclosing-owner.test.ts feat(ingestion): language-agnostic heritage extractor with config+factory pattern (#890) 2026-04-17 17:51:17 +01:00
resources.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
route-tool-detection.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
ruby-self-call.test.ts feat(ingestion): language-agnostic heritage extractor with config+factory pattern (#890) 2026-04-17 17:51:17 +01:00
run-analyze.test.ts feat: unify web and cli ingestion pipeline (#536) 2026-03-28 14:07:11 +00:00
schema.test.ts feat(ingestion): language-agnostic variable extractor with config+factory pattern (#878) 2026-04-16 13:57:25 +01:00
security.test.ts feat: METHOD_IMPLEMENTS edges, overload disambiguation, MethodExtractor unification (#574) (#642) 2026-04-04 18:41:47 +01:00
semantic-chunk-search.test.ts feat(embeddings): AST-aware chunking with offset-based splitting (#889) 2026-04-16 22:55:04 +01:00
sequential-language-availability.test.ts Extract registries into model/ module with SemanticModel interface (#786) 2026-04-12 01:06:55 +01:00
server.test.ts feat: configure eslint with unused import removal (#564) 2026-03-28 15:28:09 +00:00
setup-codex.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
setup.test.ts fix(setup): prefer global gitnexus binary over npx for MCP config (#653) 2026-04-06 07:46:10 +01:00
shape-check.test.ts fix: shape_check false positives — quoted keys, DOM leaks, errorKeys (#501) 2026-03-26 05:43:37 +00:00
shared-type-extractors.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
skill-gen.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
skip-git-cli.test.ts feat: added skip-agents-md cli flag (#517) 2026-03-28 21:23:59 +00:00
staleness.test.ts feat(group): add group infrastructure and contract matching 2026-04-02 00:39:43 +03:00
stdout-silence.test.ts fix(mcp): unify stdout silencing to prevent embedder/pool-adapter conflicts (#645) 2026-04-04 11:56:49 +01:00
structure-processor.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
suffix-index-ambiguity.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
symbol-resolver.test.ts refactor(pipeline): DAG-based phase architecture + container-logic extraction to LanguageProvider (#809) 2026-04-13 20:31:05 +01:00
symbol-table.test.ts feat(ingestion): language-agnostic heritage extractor with config+factory pattern (#890) 2026-04-17 17:51:17 +01:00
text-generator.test.ts feat(embeddings): AST-aware chunking with offset-based splitting (#889) 2026-04-16 22:55:04 +01:00
tools.test.ts feat(group): add sync pipeline, CLI, MCP tools, and monorepo fixture 2026-04-02 00:40:31 +03:00
topological-sort.test.ts refactor(pipeline): DAG-based phase architecture + container-logic extraction to LanguageProvider (#809) 2026-04-13 20:31:05 +01:00
transitive-include-closure.test.ts fix: resolve C/C++ cross-file calls through transitive #include chains (#816) 2026-04-14 09:39:17 +01:00
tree-sitter-queries.test.ts feat(ingestion): language-agnostic variable extractor with config+factory pattern (#878) 2026-04-16 13:57:25 +01:00
type-env.test.ts feat(shared): add scope-resolution types + constants (#910, RFC #909 Ring 1) (#949) 2026-04-18 12:55:09 +01:00
utils.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
variable-extraction.test.ts feat(ingestion): language-agnostic variable extractor with config+factory pattern (#878) 2026-04-16 13:57:25 +01:00
vue-sfc-extractor.test.ts feat(vue): Vue SFC support + destructured call result tracking (#604) 2026-04-03 14:18:55 +05:30
wiki-flags.test.ts feat: configure prettier with pre-commit hook (#563) 2026-03-28 14:58:04 +00:00
wiki-llm-client.test.ts fix(wiki): Azure OpenAI compat and HTML viewer script injection (#618) 2026-04-01 21:30:43 +05:30
wildcard-synthesis.test.ts refactor(pipeline): DAG-based phase architecture + container-logic extraction to LanguageProvider (#809) 2026-04-13 20:31:05 +01:00