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feat(linter): Implement react/no-clone-element rule.#20129

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feature/add-no-clone-element
Mar 9, 2026
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feat(linter): Implement react/no-clone-element rule.#20129
graphite-app[bot] merged 1 commit intomainfrom
feature/add-no-clone-element

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@connorshea connorshea commented Mar 8, 2026

AI Disclosure: All code in this PR was written by me (docs, diagnostics, tests), excluding the run method which I used Claude Code for help with.

Fixes #20105. Part of #1022, arguably.

This is based on the rule from @eslint-react/eslint-plugin: https://www.eslint-react.xyz/docs/rules/no-clone-element

You can read about React.cloneElement in the React docs.

This intentionally does not handle require imports currently. They are supported in the original rule, but I'm not sure they're worth the extra complexity here and almost none of our other react rules handle them either. It also does not handle import aliases like import { cloneElement as foobar } from 'react';.

Copilot AI review requested due to automatic review settings March 8, 2026 22:59
@connorshea connorshea requested a review from camc314 as a code owner March 8, 2026 22:59
@github-actions github-actions bot added A-linter Area - Linter C-enhancement Category - New feature or request labels Mar 8, 2026
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Pull request overview

Adds a new React lint rule to discourage usage of React.cloneElement/cloneElement, integrating it into the linter’s React plugin and snapshot-based test suite.

Changes:

  • Implement react/no-clone-element rule with diagnostic messaging and documentation.
  • Register the rule in the React rules module list and generated rule enums/runners.
  • Add snapshot output for rule test cases.

Reviewed changes

Copilot reviewed 3 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file
File Description
crates/oxc_linter/src/rules/react/no_clone_element.rs New rule implementation + inline tests for react/no-clone-element.
crates/oxc_linter/src/snapshots/react_no_clone_element.snap Snapshot output for the new rule’s diagnostics.
crates/oxc_linter/src/rules.rs Exposes the new React rule module.
crates/oxc_linter/src/generated/rules_enum.rs Registers the rule in the generated enum, IDs, and dispatch.
crates/oxc_linter/src/generated/rule_runner_impls.rs Hooks rule runner to visit CallExpression nodes.

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codspeed-hq bot commented Mar 8, 2026

Merging this PR will not alter performance

✅ 4 untouched benchmarks
⏩ 52 skipped benchmarks1


Comparing feature/add-no-clone-element (6e74d7f) with main (5559f0d)2

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Footnotes

  1. 52 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports.

  2. No successful run was found on main (fe3b32e) during the generation of this report, so 5559f0d was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.

@camc314 camc314 self-assigned this Mar 9, 2026
@camc314 camc314 added the 0-merge Merge with Graphite Merge Queue label Mar 9, 2026
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camc314 commented Mar 9, 2026

Merge activity

AI Disclosure: All code in this PR was written by me (docs, diagnostics, tests), excluding the `run` method which I used Claude Code for help with.

Fixes #20105. Part of #1022, arguably.

This is based on the rule from `@eslint-react/eslint-plugin`: https://www.eslint-react.xyz/docs/rules/no-clone-element

You can read about `React.cloneElement` in [the React docs](https://react.dev/reference/react/cloneElement).

This intentionally does not handle `require` imports currently. They are supported in the original rule, but I'm not sure they're worth the extra complexity here and almost none of our other react rules handle them either. It also does not handle import aliases like `import { cloneElement as foobar } from 'react';`.
@graphite-app graphite-app bot force-pushed the feature/add-no-clone-element branch from 6e74d7f to 1735215 Compare March 9, 2026 18:14
@graphite-app graphite-app bot merged commit 1735215 into main Mar 9, 2026
21 checks passed
@graphite-app graphite-app bot deleted the feature/add-no-clone-element branch March 9, 2026 18:19
@graphite-app graphite-app bot removed the 0-merge Merge with Graphite Merge Queue label Mar 9, 2026
leaysgur added a commit that referenced this pull request Mar 11, 2026
# Oxlint
### 🚀 Features

- 04a5ce0 oxlint: Support `vite.config.ts` `.lint` field (#20214)
(leaysgur)
- 1735215 linter: Implement `react/no-clone-element` rule. (#20129)
(connorshea)
- 68e6f6f linter: Implement `react/no-react-children` rule. (#20104)
(connorshea)
- fe3b32e linter/plugins: Add `oxlint-plugin-eslint` package (#20009)
(overlookmotel)

### 🐛 Bug Fixes

- 05f6a09 linter/no-inline-comments: Deserialize rule options with serde
(#20207) (camc314)
- c7eb09d linter/default-case: Deserialize rule options with serde
(#20206) (camc314)
- f85e16c linter/plugins: Fix types for visitor compilation (#20203)
(overlookmotel)
- 44e24e0 linter/exhaustive-deps: Ignore type-only typeof deps (#20201)
(camc314)
- 0b04998 linter/no-fallthrough: Deserialize rule options with serde
(#20192) (camc314)
- a1031cb linter/new-cap: Deserialize rule options with serde (#20161)
(camc314)
- ad27fd6 linter: Add help messages to import plugin diagnostics
(#20158) (John Costa)
- 1340307 linter/plugins: Ensure `after` hooks always run (#20167)
(overlookmotel)
- c4812ec linter/plugins: Reset visitor compilation state if error
during compilation (#20166) (overlookmotel)
- 887eecc linter/plugins: Add license notice to `oxlint-plugin-eslint`
package (#20164) (overlookmotel)
- e1713a4 linter/plugins: Include common chunks in
`oxlint-plugin-eslint` package (#20163) (overlookmotel)
- a9acb2b linter: Check `globals` entry for `no-undef`, only check
es2026 globals for `no-extend-native` and
`no-constant-binary-expression` (#20089) (Sysix)
- 5559f0d linter/no-unused-vars: `reportUsedIgnorePattern` should not
report used rest siblings (#20108) (Don Isaac)
- de7c0e2 linter/plugins: Correct error message for `markVariableAsUsed`
(#20152) (overlookmotel)

### ⚡ Performance

- 3a86427 linter/plugins: Pre-populate cache of `EnterExit` objects at
startup (#20194) (overlookmotel)
- d243391 linter/plugins: Replace arrays with `Uint8Array`s (#20190)
(overlookmotel)
- 8742f8b linter/plugins: Pre-populate cache of `VisitProp` objects
(#20189) (overlookmotel)
- 3061acb linter/plugins: Pre-populate cache of `EnterExit` objects
(#20187) (overlookmotel)
- c73912b linter/plugins: Free visit functions earlier (#20186)
(overlookmotel)
- d9f8ff4 linter/plugins: Faster reset of visitor state (#20185)
(overlookmotel)
- 42aff15 oxlint/lsp: Avoid computing diagnostics for non invoked code
actions requests (#20080) (Sysix)

### 📚 Documentation

- a080650 linter/plugins: Fix documentation of visitor compilation
(#20202) (overlookmotel)
- 542a04a linter: Add a link to the cyclomatic complexity Wikipedia
article in `eslint/complexity` (#20174) (connorshea)
# Oxfmt
### 🚀 Features

- 95943aa oxfmt: Support `vite.config.*` `.fmt` field (#20197)
(leaysgur)
- 172fc07 oxfmt: .js/.ts config file support (#20135) (leaysgur)

### 🐛 Bug Fixes

- e483569 oxfmt: Avoid double-escaping in css-in-js (#20211) (leaysgur)

Co-authored-by: leaysgur <6259812+leaysgur@users.noreply.github.com>
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linter: Add react/no-clone-element rule.

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