swc/crates/swc_ecma_parser/tests/tsc/optionalChainingInParameterInitializer.ts

// @target: esnext,es2015,es5
// @noTypesAndSymbols: true

// https://github.com/microsoft/TypeScript/issues/36295
const a = (): { d: string } | undefined => undefined;
((b = a()?.d) => {})();
feat(es): TypeScript 4.2 (#1330) swc_ecma_ast: - Add `is_abstract` to constructor types. swc_ecma_codegen: - Fix codegen of `Bool`. - Implement codegen for abstract constructors. swc_ecma_parser: - Inline tsc parser test suite. - Implement parsing of abstract constructor types. 2021-01-15 13:30:44 +03:00			`// @target: esnext,es2015,es5`
			`// @noTypesAndSymbols: true`

			`// https://github.com/microsoft/TypeScript/issues/36295`
			`const a = (): { d: string } \| undefined => undefined;`
			`((b = a()?.d) => {})();`