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=5.9.2&fileType=.ts&code=MYewdgzgLgBAtgQwJ4CMCmAFATiOBLCNGAXhgFkEoALAOiwTABNcAKAShgH4ZtcC06aCCAA2ANzTsYALhgBGANwAoJQgDuCPLESpMOfIQUwA9MZhYAriKLMhMMCFhY0ABxBYoK3gYEIRIlgBtHXRvfgBdNiNTcysiZzcPCBU0AA9E2ABvAF8FIA&eslintrc=N4KABGBEBOCuA2BTAzpAXGUEKQAIBcBPABxQGNoBLY-AWhXkoDt8B6AQwHd3K78ALRE3YAjJOiiJo0APbRI4MAF8QSoA&tsconfig=N4KABGBEDGD2C2AHAlgGwKYCcDyiAuysAdgM6QBcYoEEkJemy0eAcgK6qoDCAFutAGsylBm3TgwAXxCSgA&tokens=false

Repro Code

constmaybePromise=Math.random() ?Promise.resolve() :1;awaitmaybePromise;// rule does not reportPromise.all([maybePromise]);// rule reportsexport{};

ESLint Config

{"rules":{"@typescript-eslint/await-thenable":"error"}}

tsconfig

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

Expected Result

The rule should not report.

Actual Result

The rule reports on passingmaybePromise intoPromise.all.

Additional Info

In#11267,@ronami added support for non-promise values passed to aggregator methods.

However, this now introduces an inconsistency:

• The rule correctly doesnot report whenawaiting something that might be aPromise.
• However, the rule wrongly reports when passing something that might be aPromise into a promise aggregator function.