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

// @strict: true

declare const o1: undefined | { b: string };
o1?.b;

declare const o2: undefined | { b: { c: string } };
o2?.b.c;

declare const o3: { b: undefined | { c: string } };
o3.b?.c;

declare const o4: { b?: { c: { d?: { e: string } } } };
o4.b?.c.d?.e;

declare const o5: { b?(): { c: { d?: { e: string } } } };
o5.b?.().c.d?.e;

// GH#33744
declare const o6: <T>() => undefined | ({ x: number });
o6<number>()?.x;

// GH#34109
o1?.b ? 1 : 0;

// GH#36031
o2?.b!.c;
o2?.b!.c!;