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test: import the ParserOptions type the SyntaxTree tests use - #22875

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@alexander-akait alexander-akait commented Oct 23, 2026 •

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Summary

#22815 added a /** @type {ParserOptions} */ in test/unitCases/javascript/parser.unittest.js without importing the type, so lint (lint:types-test) fails on main and on every PR:

test/unitCases/javascript/parser.unittest.js(4994,13): error TS2552: Cannot find name 'ParserOptions'.

This adds the missing typedef next to the file's other imports from syntax-parser. yarn lint passes with it.

What kind of change does this PR introduce?

test

Did you add tests for your changes?

No, it is a type import in an existing test file.

Does this PR introduce a breaking change?

No.

If relevant, what needs to be documented once your changes are merged or what have you already documented?

n/a

Use of AI

Claude Code found the failure while linting another change and wrote the one-line fix.


Generated by Claude Code

Summary by CodeRabbit

  • Tests
    • Added development-time type coverage for parser options in the JavaScript parser test suite.
    • This update affects test checks only. It does not change parser behavior, available features, or the experience for end users.

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⚠️ No Changeset found

Latest commit: fe438b9

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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@coderabbitai coderabbitai Bot added the area: types types.d.ts, JSDoc annotations, hand-maintained declarations label Oct 23, 2026
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Review in Change Stack →

No actionable comments were generated in the recent review. 🎉

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Reviewing files that changed from the base of the PR and between 90b6205 and fe438b9.

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  • test/unitCases/javascript/parser.unittest.js

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📝 Walkthrough

The parser unit test adds a ParserOptions type alias that refers to the exported parser options type.

Changes: Parser test typing

Layer / File(s) Summary
Parser options alias
test/unitCases/javascript/parser.unittest.js
The test file adds the ParserOptions type alias for the parser’s exported options type.

Possibly related PRs

Suggested labels: area: types

Priority: ⬇️ Low

Change: Other

Merge Risk: ⚪ Minimal · up to fe438

This test-typing fix introduces no runtime behavior change and is ready to merge.

Pre-merge checks: Passed 3 · Inconclusive 1

Failed Failed checks: 1 inconclusive

Check name Status Explanation Resolution
Title check Inconclusive The title uses valid Conventional Commit syntax with the allowed type test and clearly describes the type-import change. The branch prefix is not provided, so the required type-to-branch-prefix matc… Provide the branch name or branch prefix. Confirm that it starts with test.
Passed Passed checks: 3 passed
Check name Status Explanation
Description Check Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Linked Issues check Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check Passed Check skipped because no linked issues were found for this pull request.
Full details: Title check

Explanation

The title uses valid Conventional Commit syntax with the allowed type test and clearly describes the type-import change. The branch prefix is not provided, so the required type-to-branch-prefix match cannot be verified.

Resolution

Provide the branch name or branch prefix. Confirm that it starts with test.

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Types Coverage

Coverage after merging test/parser-options-typedef into main will be
99.28%
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This PR is packaged and the instant preview of its latest commit is available.

Install it locally:

  • npm
npm i -D webpack@https://pkg.pr.new/webpack@22875
  • yarn
yarn add -D webpack@https://pkg.pr.new/webpack@22875
  • pnpm
pnpm add -D webpack@https://pkg.pr.new/webpack@22875

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Generated code size

Comparing base (90b6205) to head (fe438b9). Merging this pull request will not change the code webpack generates.

What moved Tests Assets Gzip Raw Test edit
Changed, test untouched 0 0 — — —
Changed, test edited 0 0 — — —
New 0 0 — — —
Deleted 0 0 — — —
Unchanged — 9109 — — —

Read Changed, test untouched first: the test is byte-identical on both sides, so webpack generated the difference. Changed, test edited moved partly because the test did — Test edit is how many bytes the test gained, and a bundle that grew by less is not a regression. New and Deleted are whole files, not deltas — a new asset was created, not grown, so it reads gray (⚪ added) — and adding tests cannot bury a real change. Gzip decides, because that is what users download; raw is the tiebreak, and brotli and zstd are per asset below.

No asset changed size.

No runtime gained or lost a runtime module.

Built test/configCases with the defaults a user gets: 2280 test(s), 9109 asset(s), 101 emitted nothing.

@alexander-akait
alexander-akait merged commit 706e46f into main Oct 23, 2026
65 checks passed
@alexander-akait
alexander-akait deleted the test/parser-options-typedef branch October 23, 2026 14:01
@codspeed

codspeed Bot commented Oct 23, 2026

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Merging this PR will degrade performance by 45.01%

2 warnings, 1 note

⚠️ 111 benchmarks are dominated by system calls

System calls cannot be simulated consistently and are left out of the measure. The reported value understates the real cost. Switch to the Walltime instrument to measure them.

Learn more about system calls

See affected benchmarks

⚠️ Base and head ran on different runner types

Some benchmarks with significant performance changes were compared across different runner types, so the changes might not come from the code. Run base and head on the same runner type, or use CodSpeed Macro Runners for more stable results.

Learn more about Macro Runners

Open the report in CodSpeed to investigate

ℹ️ 43 benchmarks have no flamegraph

The flamegraph wasn't generated: most of the time was spent in runtime internals, which would leave nothing useful to analyze.

See affected benchmarks

❌ 1 regressed benchmark
✅ 338 untouched benchmarks

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
❌ Memory benchmark "resolve-unsafe-cache", scenario '{"name":"mode-production","mode":"production"}' 574.1 KB 1,044.1 KB -45.01%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.


Comparing test/parser-options-typedef (fe438b9) with main (90b6205)

Open in CodSpeed

alexander-akait added a commit that referenced this pull request Oct 23, 2026
* test: cover declared chunk hash dependencies

Cases for a chunk naming another chunk's file: a runtime chunk renamed by
the compilation hash, a plugin declaring the dependency, the hashing order
and the warnings for dependencies that cannot be honored.

* feat: add compilation.hooks.chunkHashDependencies

A chunk declares the chunks whose hashes its output reads. createHash
hashes them first, in a shared order RuntimeTemplate reads too, and
JavascriptModulesPlugin mixes their hashes into the chunk's. The ESM and
CommonJS chunk formats declare what their startup imports or requires.

* chore: add changeset for chunkHashDependencies

* chore: regenerate types for chunkHashDependencies

* refactor: share one chunk hash order and cover other chunk kinds

Positions run across the hashing rounds, so RuntimeTemplate compares them
instead of classifying rounds itself; the walk positions chunks as it goes
and JavascriptModulesPlugin mixes dependency hashes in one tap. A watch
case covers HTML, CSS and worker chunks naming other chunks' files.

* style: format chunk hash order loop

* chore: restore schema key order

* perf: look up chunk hash rounds once per chunk

Recomputing the round per dependency edge walks the chunk's groups in
canBeInitial; a map filled while sorting chunks into rounds is cheaper.

* test: load fs as an ESM external in the chunk kinds case

node-commonjs externals import createRequire, which Node 10 lacks.

* chore: drop a ChunkGraph cast main's narrower types made redundant

Claude-Session: https://claude.ai/code/session_01GVKiUEUTFEzHrHQoE1ryyx

* test: import the ParserOptions type the SyntaxTree tests use

Same change as #22875; main's lint:types-test fails without it.

Claude-Session: https://claude.ai/code/session_01GVKiUEUTFEzHrHQoE1ryyx
alexander-akait added a commit that referenced this pull request Oct 23, 2026
….length` (#22871)

* fix(minify): read a local function handed the global object or a built-in

Its parameter stands for what it is handed, so `patch(Array)` writing
`C.prototype` or `patch(globalThis)` writing `g.Number` counts, while a
helper that only reads, as `isGlobal(globalThis)`, still folds.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

* feat(minify): read `arguments[i]` as its parameter without `reduce_vars`, and `[-0]` as `[0]`

Where nothing writes the parameter or the `arguments` object, as swc does;
closes swc's `12209` and `arguments-canonical-index` gaps.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

* feat(minify): drop unread call arguments and fold `Object.keys`, `.length` and `Array(-0)`

Trim arguments past a known function's or constructor's parameters, and
write `0` for one an unused parameter takes, where terser leaves them;
fold `Object.keys` without `reduce_vars` once the probe finds no write of
`Object`, `Math` calls of another's result, and a known function's
`length` under `unsafe`. Closes eleven of swc's gaps and two of oxc's.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

* fix(minify): read a parameter as the object handed it, whatever its name, and keep `Array(-0)` where `Array` is written

A function handed a second, different object counts as patching it.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

* fix(minify): resolve no callee or global write where the program reads `eval`

An `eval` may write any binding unseen, as swc's
`issue_11684_nested_eval_preserves_constructor_arguments` does. Retire the
twelve terser cases the trimmed arguments closed.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

* perf(minify): release the probe's function and name tables once a program is compressed

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

* test: import the ParserOptions type the SyntaxTree tests use

Ported from #22875, which fixes the `lint` failure on `main`.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

* fix(minify): follow a name set to a local function when it is handed a global

`const alias = patch; alias(Array)` no longer lets a prototype patch go unseen.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD
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