[Bug]: display-name false positive when React is shadowed

[knightedcodemonkey]

Is there an existing issue for this?

• [x] I have searched the existing issues and my issue is unique
• [x] My issue appears in the command-line and not only in the text editor

Description Overview

react/display-name will report an error Component definition is missing display name when the React global import is shadowed within a function scope.

The same error does not occur for shadowed memo or forwardRef though.

Example

import React, { memo, forwardRef } from 'react'

const MixedShadowed = function () {
  const memo = (cb) => cb()
  const { forwardRef } = { forwardRef: () => null }
  const [React] = [{ memo, forwardRef }]

  const Comp = memo(() => {
    return <div>shadowed</div>
  })
  const ReactMemo = React.memo(() => null)
  const ReactForward = React.forwardRef((props, ref) => {
    return `${props} ${ref}`
  })
  const OtherComp = forwardRef((props, ref) => `${props} ${ref}`)

  return [Comp, ReactMemo, ReactForward, OtherComp]
}

Running eslint from the command line you'll see the error:

  11:21  error  Component definition is missing display name  react/display-name
  12:24  error  Component definition is missing display name  react/display-name

Expected Behavior

I know most people won't shadow React, memo or forwardRef, but I'd still expect the error to not be reported in this case.

eslint-plugin-react version

v7.37.5

eslint version

v9.26.0

node version

v22.15.0

[ljharb]

Fair, but how would you have even run into this? Prior to the new jsx renderer, this wouldn't have even been possible, but certainly it could be with the new renderer.

[knightedcodemonkey]

how would you have even run into this?

I couldn't find a codemod that added the displayName so I've been writing my own to clean up a mess at work. Oh, and running the linter against my test runs.

[knightedcodemonkey]

Here's the test that was catching this: https://github.com/knightedcodemonkey/display-name/blob/main/test/displayName.ts#L10-L42

For now I've disabled the rule around those lines.

[hyeonbinHur]

Hi! I'd like to work on this issue if it's still available. Let me know if that works for you.