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// @strict: true
declare let x: { a?: number, b: string };
declare let y: { a: null, b: string };
declare let z: { a: null } & { b: string };
x = y; // Error
x = z; // Error
// Repro from #36604
interface To {
field?: number;
anotherField: string;
}
type From = { field: null } & Omit<To, 'field'>;
function foo(v: From) {
let x: To;
x = v; // Error
x.field = v.field; // Error
}
// Repro from #38348
const yy: number[] & [number, ...number[]] = [1];
const xx: [number, ...number[]] = yy;
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