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=== tests/cases/compiler/intersectionPropertyCheck.ts ===
let obj: { a: { x: string } } & { c: number } = { a: { x: 'hello', y: 2 }, c: 5 }; // Nested excess property
>obj : { a: { x: string;}; } & { c: number; }
>a : { x: string; }
>x : string
>c : number
>{ a: { x: 'hello', y: 2 }, c: 5 } : { a: { x: string; y: number; }; c: number; }
>a : { x: string; y: number; }
>{ x: 'hello', y: 2 } : { x: string; y: number; }
>x : string
>'hello' : "hello"
>y : number
>2 : 2
>c : number
>5 : 5
declare let wrong: { a: { y: string } };
>wrong : { a: { y: string;}; }
>a : { y: string; }
>y : string
let weak: { a?: { x?: number } } & { c?: string } = wrong; // Nested weak object type
>weak : { a?: { x?: number | undefined; } | undefined; } & { c?: string | undefined; }
>a : { x?: number | undefined; } | undefined
>x : number | undefined
>c : string | undefined
>wrong : { a: { y: string; }; }
function foo<T extends object>(x: { a?: string }, y: T & { a: boolean }) {
>foo : <T extends object>(x: { a?: string;}, y: T & { a: boolean;}) => void
>x : { a?: string | undefined; }
>a : string | undefined
>y : T & { a: boolean; }
>a : boolean
x = y; // Mismatched property in source intersection
>x = y : T & { a: boolean; }
>x : { a?: string | undefined; }
>y : T & { a: boolean; }
}
// Repro from #36637
interface Test {
readonly hi?: string[]
>hi : string[] | undefined
}
function test<T extends object>(value: T): Test {
>test : <T extends object>(value: T) => Test
>value : T
return { ...value, hi: true }
>{ ...value, hi: true } : T & { hi: boolean; }
>value : T
>hi : boolean
>true : true
}
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