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=== tests/cases/conformance/types/intersection/intersectionWithUnionConstraint.ts ===
function f1<T extends string | number, U extends string | number>(x: T & U) {
>f1 : <T extends string | number, U extends string | number>(x: T & U) => void
>x : T & U
// Combined constraint of 'T & U' is 'string | number'
let y: string | number = x;
>y : string | number
>x : string | number
}
function f2<T extends string | number | undefined, U extends string | null | undefined>(x: T & U) {
>f2 : <T extends string | number | undefined, U extends string | null | undefined>(x: T & U) => void
>null : null
>x : T & U
let y1: string | number = x; // Error
>y1 : string | number
>x : string | undefined
let y2: string | null = x; // Error
>y2 : string | null
>null : null
>x : string | undefined
let y3: string | undefined = x;
>y3 : string | undefined
>x : string | undefined
let y4: number | null = x; // Error
>y4 : number | null
>null : null
>x : string | undefined
let y5: number | undefined = x; // Error
>y5 : number | undefined
>x : string | undefined
let y6: null | undefined = x; // Error
>y6 : null | undefined
>null : null
>x : string | undefined
}
type T1 = (string | number | undefined) & (string | null | undefined); // string | undefined
>T1 : string | undefined
>null : null
function f3<T extends string | number | undefined>(x: T & (number | object | undefined)) {
>f3 : <T extends string | number | undefined>(x: T & (number | object | undefined)) => void
>x : T & (number | object | undefined)
const y: number | undefined = x;
>y : number | undefined
>x : number | undefined
}
function f4<T extends string | number>(x: T & (number | object)) {
>f4 : <T extends string | number>(x: T & (number | object)) => void
>x : T & (number | object)
const y: number = x;
>y : number
>x : number
}
function f5<T, U extends keyof T>(x: keyof T & U) {
>f5 : <T, U extends keyof T>(x: keyof T & U) => void
>x : keyof T & U
let y: keyof any = x;
>y : string | number | symbol
>x : string | number | symbol
}
// Repro from #23648
type Example<T, U> = { [K in keyof T]: K extends keyof U ? UnexpectedError<K> : NoErrorHere<K> }
>Example : Example<T, U>
type UnexpectedError<T extends PropertyKey> = T
>UnexpectedError : T
type NoErrorHere<T extends PropertyKey> = T
>NoErrorHere : T
// Repro from #30331
type a<T> = T extends Array<infer U> ? U : never;
>a : a<T>
type b<T> = { [K in a<T> & keyof T ]: 42 };
>b : b<T>
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