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Bug: [prefer-nullish-coalescing] TypeError: Cannot read properties of undefined (reading 'some') when left-hand-side is unknown #8276

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bugSomething isn't workingduplicateThis issue or pull request already existspackage: eslint-pluginIssues related to @typescript-eslint/eslint-plugin
@JoshuaKGoldberg

Description

@JoshuaKGoldberg

Before You File a Bug Report Please Confirm You Have Done The Following...

  • I have tried restarting my IDE and the issue persists.
  • I have updated to the latest version of the packages.
  • I havesearched for related issues and found none that matched my issue.
  • I haveread the FAQ and my problem is not listed.

Playground Link

https://typescript-eslint.io/play/#ts=5.3.3&fileType=.tsx&code=CYUwxgNghgTiAEYD2A7AzgF3gNyhAriAFzz4oDWKSA7igNwBQuBCAPq-AN4C%2BjQA&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6Y6RAM0WlqYSNkAC1pkA9gEMkyMswDm6KL2jjokcGAC%2BILUA&tsconfig=N4KABGBEDGD2C2AHAlgGwKYCcDyiAuysAdgM6QBcYoEEkJemy0eAcgK6qoDCAFutAGsylBm3TgwAXxCSgA&tokens=false

Repro Code

declareconstvalue:unknown;value||{};

ESLint Config

module.exports={"rules":{"@typescript-eslint/prefer-nullish-coalescing":"error"}}

tsconfig

{"compilerOptions": {"strictNullChecks":true  }}

Expected Result

No crash. Perhaps a lint report.

Actual Result

TypeError: Cannot read properties of undefined (reading 'some')Occurred while linting /input.tsx:2Rule: "@typescript-eslint/prefer-nullish-coalescing"    at LogicalExpression[operator = "||"] (https://typescript-eslint.io/sandbox/index.js:143:58720)    at https://typescript-eslint.io/sandbox/index.js:106:2597    at https://typescript-eslint.io/sandbox/index.js:100:32964    at Array.forEach (<anonymous>)    at Object.emit (https://typescript-eslint.io/sandbox/index.js:100:32953)    at _x.applySelector (https://typescript-eslint.io/sandbox/index.js:41:22861)    at _x.applySelectors (https://typescript-eslint.io/sandbox/index.js:41:23157)    at _x.enterNode (https://typescript-eslint.io/sandbox/index.js:41:23248)    at yx.enterNode (https://typescript-eslint.io/sandbox/index.js:35:23816)    at https://typescript-eslint.io/sandbox/index.js:106:3033 2:1 - 2:12

Additional Info

Discovered inJoshuaKGoldberg/eslint-plugin-package-json#117.

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