perf(keys-manager): single-pass TS extraction without tsquery - #1012
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pkurcx wants to merge 2 commits into
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perf(keys-manager): single-pass TS extraction without tsquery#1012pkurcx wants to merge 2 commits into
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Replace the seven tsquery selector queries per TypeScript file with one forEachChild walk that collects imports, calls, TranslocoService bindings and inline templates; the service, pure-function, signal, marker and inline-template extractors become filters over that scan. Port the scopes-map resolution to the same helpers so @phenomnomnominal/tsquery can be dropped. Templates are read from disk once: the comments extractor reuses the content templateExtractor already loaded. On a synthetic 3000-file project the TypeScript phase drops from ~2.1s to ~0.4s and the CLI end-to-end median from 3.87s to 2.03s. Closes jsverse#1011 Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Included review availability: Your plan provides up to 8 included reviews per hour; 6 remain after this review. 📝 WalkthroughWalkthroughThe key manager replaces tsquery-based extraction with shared TypeScript AST utilities and a single-pass source scan. Translation extractors consume scanned calls, inline templates use scanned content, scope parsing uses AST traversal, and performance tests track the new parser. ChangesTypeScript extraction and scope parsing
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@jsverse/transloco
@jsverse/transloco-keys-manager
@jsverse/transloco-locale
@jsverse/transloco-messageformat
@jsverse/transloco-optimize
@jsverse/transloco-persist-lang
@jsverse/transloco-persist-translations
@jsverse/transloco-preload-langs
@jsverse/transloco-schematics
@jsverse/transloco-scoped-libs
@jsverse/transloco-utils
@jsverse/transloco-validator
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Inline comments:
In
`@libs/transloco-keys-manager/src/lib/keys-builder/typescript/build-keys-from-call.ts`:
- Line 52: Update traverseParams to handle ShorthandPropertyAssignment nodes
before filtering for regular PropertyAssignment nodes, adding the shorthand
property name to params so translate('key', { user }) yields ['user']; add a
given-when-then regression test covering this behavior.
In `@libs/transloco-keys-manager/src/lib/utils/ts-ast.utils.ts`:
- Around line 93-96: Update the import matching logic used by markerExtractor
and signalExtractor to compare only the imported export name, removing the
element.name.text local-alias match. Preserve matching for direct imports of the
expected importedName while ignoring unrelated exports aliased to marker or
translateSignal.
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libs/transloco-keys-manager/package.jsonlibs/transloco-keys-manager/src/lib/keys-builder/template/comments.extractor.tslibs/transloco-keys-manager/src/lib/keys-builder/typescript/build-keys-from-ast-nodes.tslibs/transloco-keys-manager/src/lib/keys-builder/typescript/build-keys-from-call.tslibs/transloco-keys-manager/src/lib/keys-builder/typescript/index.tslibs/transloco-keys-manager/src/lib/keys-builder/typescript/inline-template.tslibs/transloco-keys-manager/src/lib/keys-builder/typescript/marker.extractor.tslibs/transloco-keys-manager/src/lib/keys-builder/typescript/pure-function.extractor.tslibs/transloco-keys-manager/src/lib/keys-builder/typescript/scan-source-file.tslibs/transloco-keys-manager/src/lib/keys-builder/typescript/service.extractor.tslibs/transloco-keys-manager/src/lib/keys-builder/typescript/signal.extractor.tslibs/transloco-keys-manager/src/lib/tests/performance.spec.tslibs/transloco-keys-manager/src/lib/utils/ts-ast.utils.tslibs/transloco-keys-manager/src/lib/utils/update-scopes-map.tspackage.json
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- libs/transloco-keys-manager/src/lib/keys-builder/typescript/build-keys-from-ast-nodes.ts
- libs/transloco-keys-manager/package.json
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`import { other as marker }` no longer makes `other` count as the marker
function; only the exported `marker` / `translateSignal` binding does.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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PR Checklist
Please check if your PR fulfills the following requirements:
PR Type
What kind of change does this PR introduce?
What is the current behavior?
Issue Number: #1011
Key extraction runs seven
tsqueryselector queries per TypeScript file, each a fullgetChildren()traversal of the AST, and reads every HTML template twice (once to parse it, once more from disk in the comments extractor). On a 3000-file project that is ~3.9 s perextract, with about a third of the time insidetsquery/esqueryand the keys-manager's own logic at ~2%. Profile details are in the linked issue.What is the new behavior?
Same output, less work:
scan-source-file.tswalks each TypeScript AST once withforEachChildand collects imports, call expressions, local names bound toTranslocoService(constructor parameters andinject(TranslocoService)targets, including#privatefields) and@Componentinline templates.buildKeysFromASTNodesbecomesbuildKeysFromCalland takes the call expression directly.ts-ast.utils.tsholds the shared helpers (parseTsSource,forEachDescendant,findDescendant(s),hasDescendant,nameText,resolveImportedName).update-scopes-map.tsis ported to the same helpers, so@phenomnomnominal/tsqueryis removed from the keys-manager and rootpackage.json(it stays in the lockfile as a transitive dependency of the@nx/*tooling).templateCommentsExtractorreuses the content already loaded bytemplateExtractorinstead of re-reading the file..textinstead ofgetText()on the hot paths.Measured on a synthetic 3000-file project (1500
.ts+ 1500.html, 9000 keys), 5 alternating runs against amasterworktree:The HTML phase is unchanged by design: it is dominated by
@angular/compiler'sparseTemplate.Verification:
nx test transloco-keys-managerpasses (222 tests, 1 pre-existing skip) with the extraction fixtures untouched. The only spec change is inperformance.spec.ts, where the early-exit assertion now spies on the newparseTsSourcehelper instead oftsquery.ast.nx lintreports no errors; the new files use the lib's existingts.isXdefault-import style, which theimport-x/no-named-as-default-memberrule flags as warnings like the code it replaces.Two intentional edge-case differences, both in the direction of correctness:
translate/selectTranslatemember call is only attributed to the service when the receiver refers to an injectedTranslocoServicename. The oldPropertyAccessExpression:has([text=name])selector also matched unrelatedfoo.translate(...)calls whenever the service happened to be bound to a local calledtranslate..text) rather than its raw source including the backticks.Does this PR introduce a breaking change?
Other information
Lockfile:
npm installafter removing the dependency also marked@phenomnomnominal/tsquery,esquery,estraverse,@types/esquery,@types/estreeandtypescriptas dev-only (they are now only reached through@nx/*and the root devDependencies) and dropped an@noble/hashesentry that was already flaggedextraneousonmaster.Follow-ups that build on this and are deliberately out of scope here: parallelizing per-file extraction across
worker_threads, and an incremental mode that skips files unchanged since the last run.🤖 Generated with Claude Code
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