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feat(kernel): R5 — Python and Go ports, gates passed, default-on

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Python (codegraph-kernel/src/python.rs) and Go (src/go.rs) join the
native kernel, mirroring the wasm extractors bug-for-bug. Python:
decorated_definition docstrings/decorators (decorates refs only for
bare-identifier decorators — the call-kind quirk), function-in-class →
method, module-level assignments always extract as variable, from-import
per-name binding refs, self.x fn-ref candidates as bare names. Go:
receiver methods with Recv::name qualified names + contains edges to the
first earlier struct of that name, type_spec struct/interface
classification with embedding→extends and interface method nodes,
composite-literal instantiates keeping the package qualifier, top-level
var/const initializer walks attributed to the declared symbol (#693),
2-hop field chains (#1276), New().Method() re-encode (#645/#608), and
the GO_SPEC fn-ref layers.

Grammars: tree-sitter-python 0.23.6 + tree-sitter-go 0.23.4 crates, with
wasm vendored from the same tags (parser.c sha-matched) — both were
2023-era in tree-sitter-wasms.

Gates: extraction sweeps 100% (flask 83/83, django 3,035/3,038 +3
error-file deferrals, gin 99/99, prometheus 978/979 +1); full-init
dump-diffs byte-identical on flask (10,833 rows), gin (17,540), django
(360,794), and prometheus (213,758); torture fixtures enforced in npm
test. DEFAULT_ROUTED now covers typescript/tsx/javascript/jsx/java/
python/go. Full suite: 2,471 tests pass.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Colby McHenry
2026-07-16 23:50:02 -05:00
co-authored by Claude Fable 5
parent 28068fa0f1
commit c2503e2bee
18 changed files with 2393 additions and 14 deletions
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__tests__/kernel-tsjs-parity.test.ts
+11 -1
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@@ -60,7 +60,7 @@ let savedEnv: Record<string, string | undefined>;
describe.skipIf(!kernelBuilt)('kernel TS/JS extraction parity', () => {
beforeAll(async () => {
await initGrammars();
await loadGrammarsForLanguages(['typescript', 'tsx', 'javascript', 'jsx', 'java']);
await loadGrammarsForLanguages(['typescript', 'tsx', 'javascript', 'jsx', 'java', 'python', 'go']);
});
beforeEach(() => {
@@ -110,6 +110,16 @@ describe.skipIf(!kernelBuilt)('kernel TS/JS extraction parity', () => {
assertParity('fixtures/Torture.java', fs.readFileSync(file, 'utf8'), 'java');
});
it('torture fixture (python): decorators, self fn-refs, imports, shadowing', () => {
const file = path.join(FIXTURE_DIR, 'torture.py');
assertParity('fixtures/torture.py', fs.readFileSync(file, 'utf8'), 'python');
});
it('torture fixture (go): receivers, embedding, interfaces, composite literals', () => {
const file = path.join(FIXTURE_DIR, 'torture.go');
assertParity('fixtures/torture.go', fs.readFileSync(file, 'utf8'), 'go');
});
it.each(REAL_SOURCES)('real source parity: %s', (rel) => {
const file = path.join(__dirname, '..', rel);
assertParity(rel, fs.readFileSync(file, 'utf8'), 'typescript');