fix(transformer/typescript): panics when setPublicClassFields = true and the class includes private field

[Dunqing]

close: #11084

We don't need to transform the private field, which is part of class-properties work, so unreachable is expected. The bug is that we haven't skipped it.

[Dunqing]

• fix(transformer/typescript): panics when setPublicClassFields = true and the class includes private field #11089 👈 (View in Graphite)
• main

---

How to use the Graphite Merge Queue

Add either label to this PR to merge it via the merge queue:

• 0-merge - adds this PR to the back of the merge queue
• hotfix - for urgent hot fixes, skip the queue and merge this PR next

You must have a Graphite account in order to use the merge queue. Sign up using this link.

An organization admin has enabled the Graphite Merge Queue in this repository.

Please do not merge from GitHub as this will restart CI on PRs being processed by the merge queue.

This stack of pull requests is managed by Graphite. Learn more about stacking.

[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #11089 will not alter performance

_{Comparing 05-17-fix_transformer_typescript_panics_when_setpublicclassfields_true_and_the_class_includes_private_field (d374490) with main (3795eb6)}

Summary

✅ 36 untouched benchmarks

[Copilot]

Pull Request Overview

This PR fixes a bug in the TypeScript transformer where the presence of private fields would cause a panic when setPublicClassFields is enabled. The changes ensure that private fields are skipped during transformation and update the relevant tests and snapshots accordingly.

• Updated tests to include private field syntax in both input and output fixtures.
• Modified the transformer logic in the TypeScript class file to skip processing private identifiers.
• Updated snapshots to reflect the new unresolved reference IDs behavior.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
tasks/transform_conformance/tests/babel-plugin-transform-typescript/test/fixtures/use-define-for-class-fields-without-class-properties/output.js	Added private field syntax to verify transformer behavior for private fields.
tasks/transform_conformance/tests/babel-plugin-transform-typescript/test/fixtures/use-define-for-class-fields-without-class-properties/input.ts	Updated input syntax to include private fields for testing.
tasks/transform_conformance/snapshots/oxc.snap.md	Adjusted snapshot to match the new unresolved references output.
crates/oxc_transformer/src/typescript/class.rs	Modified transformation logic to skip private fields and updated unreachable error message.

[Boshen]

Merge activity

• May 18, 1:09 AM EDT: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• May 18, 1:09 AM EDT: Boshen added this pull request to the Graphite merge queue.
• May 18, 1:16 AM EDT: Merged by the Graphite merge queue.