// @target: esnext,es2015,es5 // @noTypesAndSymbols: true // @noEmit: true // https://github.com/microsoft/TypeScript/issues/36295 const a = (): { d: string } | undefined => undefined; (({ [a()?.d]: c = "" }) => { var a; })(); const x = ""; (({ [a()?.d]: c }, d = x) => { var x; })();