fix(compiler-core): correct filter rewrite recursion

[alentide]

In rewriteFilter, the branch handling COMPOUND_EXPRESSION children recursively calls rewriteFilter(node...) instead of rewriteFilter(child...), so the function would never make progress if that branch were reached.

Summary by CodeRabbit

• Bug Fixes
  • Fixed a compiler bug where filters were not correctly processed in nested expressions. Filters will now be properly applied to complex nested expression structures.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 9fc99792-2b80-47bd-bd26-90a6132699c0

📥 Commits

Reviewing files that changed from the base of the PR and between 478e3e8 and 9bdeb7c.

📒 Files selected for processing (1)

• packages/compiler-core/src/compat/transformFilter.ts

---

📝 Walkthrough

Walkthrough

In rewriteFilter, the COMPOUND_EXPRESSION branch was recursively calling rewriteFilter(node, ...) (the parent) instead of rewriteFilter(child, ...). The fix changes the argument to child so the traversal descends into nested expressions correctly.

Changes

Filter Rewrite Recursion Fix

Layer / File(s)	Summary
Fix rewriteFilter recursion target packages/compiler-core/src/compat/transformFilter.ts	The recursive call in the COMPOUND_EXPRESSION branch is corrected from rewriteFilter(node, ...) to rewriteFilter(child, ...), ensuring nested expression structures are traversed rather than the parent node being re-processed.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

A rabbit hopped through nested trees,
But kept returning to the leaves above.
One word changed — now child, not node —
And filters flowed as they should.
🐇✨ Down the branches, finally free!

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the primary fix in the changeset: correcting a recursion bug in the filter rewrite functionality.
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.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	106 kB	40.2 kB	36.1 kB
vue.global.prod.js	164 kB	60.2 kB	53.5 kB

Usages

Name	Size	Gzip	Brotli
createApp (CAPI only)	48.8 kB	19 kB	17.4 kB
createApp	56.9 kB	22 kB	20.1 kB
createSSRApp	61.2 kB	23.8 kB	21.7 kB
defineCustomElement	63.1 kB	23.9 kB	21.8 kB
overall	71.7 kB	27.4 kB	25 kB

[pkg-pr-new]

Open in StackBlitz

@vue/compiler-core

pnpm add https://pkg.pr.new/@vue/compiler-core@14959

npm i https://pkg.pr.new/@vue/compiler-core@14959

yarn add https://pkg.pr.new/@vue/compiler-core@14959.tgz

@vue/compiler-dom

pnpm add https://pkg.pr.new/@vue/compiler-dom@14959

npm i https://pkg.pr.new/@vue/compiler-dom@14959

yarn add https://pkg.pr.new/@vue/compiler-dom@14959.tgz

@vue/compiler-sfc

pnpm add https://pkg.pr.new/@vue/compiler-sfc@14959

npm i https://pkg.pr.new/@vue/compiler-sfc@14959

yarn add https://pkg.pr.new/@vue/compiler-sfc@14959.tgz

@vue/compiler-ssr

pnpm add https://pkg.pr.new/@vue/compiler-ssr@14959

npm i https://pkg.pr.new/@vue/compiler-ssr@14959

yarn add https://pkg.pr.new/@vue/compiler-ssr@14959.tgz

@vue/reactivity

pnpm add https://pkg.pr.new/@vue/reactivity@14959

npm i https://pkg.pr.new/@vue/reactivity@14959

yarn add https://pkg.pr.new/@vue/reactivity@14959.tgz

@vue/runtime-core

pnpm add https://pkg.pr.new/@vue/runtime-core@14959

npm i https://pkg.pr.new/@vue/runtime-core@14959

yarn add https://pkg.pr.new/@vue/runtime-core@14959.tgz

@vue/runtime-dom

pnpm add https://pkg.pr.new/@vue/runtime-dom@14959

npm i https://pkg.pr.new/@vue/runtime-dom@14959

yarn add https://pkg.pr.new/@vue/runtime-dom@14959.tgz

@vue/server-renderer

pnpm add https://pkg.pr.new/@vue/server-renderer@14959

npm i https://pkg.pr.new/@vue/server-renderer@14959

yarn add https://pkg.pr.new/@vue/server-renderer@14959.tgz

@vue/shared

pnpm add https://pkg.pr.new/@vue/shared@14959

npm i https://pkg.pr.new/@vue/shared@14959

yarn add https://pkg.pr.new/@vue/shared@14959.tgz

vue

pnpm add https://pkg.pr.new/vue@14959

npm i https://pkg.pr.new/vue@14959

yarn add https://pkg.pr.new/vue@14959.tgz

@vue/compat

pnpm add https://pkg.pr.new/@vue/compat@14959

npm i https://pkg.pr.new/@vue/compat@14959

yarn add https://pkg.pr.new/@vue/compat@14959.tgz

commit: 9bdeb7c