File: unionAndIntersectionInference3.symbols

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=== tests/cases/conformance/types/typeRelationships/typeInference/unionAndIntersectionInference3.ts ===
// Repro from #30720

type Maybe<T> = T | undefined;
>Maybe : Symbol(Maybe, Decl(unionAndIntersectionInference3.ts, 0, 0))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 2, 11))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 2, 11))

declare function concatMaybe<T>(...args: (Maybe<T> | Maybe<T>[])[]): T[];
>concatMaybe : Symbol(concatMaybe, Decl(unionAndIntersectionInference3.ts, 2, 30))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 3, 29))
>args : Symbol(args, Decl(unionAndIntersectionInference3.ts, 3, 32))
>Maybe : Symbol(Maybe, Decl(unionAndIntersectionInference3.ts, 0, 0))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 3, 29))
>Maybe : Symbol(Maybe, Decl(unionAndIntersectionInference3.ts, 0, 0))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 3, 29))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 3, 29))

concatMaybe([1, 2, 3], 4);
>concatMaybe : Symbol(concatMaybe, Decl(unionAndIntersectionInference3.ts, 2, 30))

// Repros from #32247

const g: <U, R, S>(com: () => Iterator<S, U, R> | AsyncIterator<S, U, R>) => Promise<U> = async <U, R, S>(com: () => Iterator<S, U, R> | AsyncIterator<S, U, R>): Promise<U> => {
>g : Symbol(g, Decl(unionAndIntersectionInference3.ts, 8, 5))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 8, 10))
>R : Symbol(R, Decl(unionAndIntersectionInference3.ts, 8, 12))
>S : Symbol(S, Decl(unionAndIntersectionInference3.ts, 8, 15))
>com : Symbol(com, Decl(unionAndIntersectionInference3.ts, 8, 19))
>Iterator : Symbol(Iterator, Decl(lib.es2015.iterable.d.ts, --, --))
>S : Symbol(S, Decl(unionAndIntersectionInference3.ts, 8, 15))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 8, 10))
>R : Symbol(R, Decl(unionAndIntersectionInference3.ts, 8, 12))
>AsyncIterator : Symbol(AsyncIterator, Decl(lib.es2018.asynciterable.d.ts, --, --))
>S : Symbol(S, Decl(unionAndIntersectionInference3.ts, 8, 15))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 8, 10))
>R : Symbol(R, Decl(unionAndIntersectionInference3.ts, 8, 12))
>Promise : Symbol(Promise, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2018.promise.d.ts, --, --))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 8, 10))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 8, 97))
>R : Symbol(R, Decl(unionAndIntersectionInference3.ts, 8, 99))
>S : Symbol(S, Decl(unionAndIntersectionInference3.ts, 8, 102))
>com : Symbol(com, Decl(unionAndIntersectionInference3.ts, 8, 106))
>Iterator : Symbol(Iterator, Decl(lib.es2015.iterable.d.ts, --, --))
>S : Symbol(S, Decl(unionAndIntersectionInference3.ts, 8, 102))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 8, 97))
>R : Symbol(R, Decl(unionAndIntersectionInference3.ts, 8, 99))
>AsyncIterator : Symbol(AsyncIterator, Decl(lib.es2018.asynciterable.d.ts, --, --))
>S : Symbol(S, Decl(unionAndIntersectionInference3.ts, 8, 102))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 8, 97))
>R : Symbol(R, Decl(unionAndIntersectionInference3.ts, 8, 99))
>Promise : Symbol(Promise, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2018.promise.d.ts, --, --))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 8, 97))

  throw com;
>com : Symbol(com, Decl(unionAndIntersectionInference3.ts, 8, 106))

};

interface Foo1<T> {
>Foo1 : Symbol(Foo1, Decl(unionAndIntersectionInference3.ts, 10, 2))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 12, 15))

    test(value: T): void;
>test : Symbol(Foo1.test, Decl(unionAndIntersectionInference3.ts, 12, 19))
>value : Symbol(value, Decl(unionAndIntersectionInference3.ts, 13, 9))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 12, 15))
}

interface Bar1<T> {
>Bar1 : Symbol(Bar1, Decl(unionAndIntersectionInference3.ts, 14, 1))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 16, 15))

    test(value: T | PromiseLike<T>): void;
>test : Symbol(Bar1.test, Decl(unionAndIntersectionInference3.ts, 16, 19))
>value : Symbol(value, Decl(unionAndIntersectionInference3.ts, 17, 9))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 16, 15))
>PromiseLike : Symbol(PromiseLike, Decl(lib.es5.d.ts, --, --))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 16, 15))
}

declare let f1: <T>(x: Foo1<T> | Bar1<T>) => Promise<T>;
>f1 : Symbol(f1, Decl(unionAndIntersectionInference3.ts, 20, 11))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 20, 17))
>x : Symbol(x, Decl(unionAndIntersectionInference3.ts, 20, 20))
>Foo1 : Symbol(Foo1, Decl(unionAndIntersectionInference3.ts, 10, 2))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 20, 17))
>Bar1 : Symbol(Bar1, Decl(unionAndIntersectionInference3.ts, 14, 1))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 20, 17))
>Promise : Symbol(Promise, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2018.promise.d.ts, --, --))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 20, 17))

declare let f2: <U>(x: Foo1<U> | Bar1<U>) => Promise<U>;
>f2 : Symbol(f2, Decl(unionAndIntersectionInference3.ts, 21, 11))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 21, 17))
>x : Symbol(x, Decl(unionAndIntersectionInference3.ts, 21, 20))
>Foo1 : Symbol(Foo1, Decl(unionAndIntersectionInference3.ts, 10, 2))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 21, 17))
>Bar1 : Symbol(Bar1, Decl(unionAndIntersectionInference3.ts, 14, 1))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 21, 17))
>Promise : Symbol(Promise, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2018.promise.d.ts, --, --))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 21, 17))

f1 = f2;
>f1 : Symbol(f1, Decl(unionAndIntersectionInference3.ts, 20, 11))
>f2 : Symbol(f2, Decl(unionAndIntersectionInference3.ts, 21, 11))

f2 = f1;
>f2 : Symbol(f2, Decl(unionAndIntersectionInference3.ts, 21, 11))
>f1 : Symbol(f1, Decl(unionAndIntersectionInference3.ts, 20, 11))

type Foo2<T> = {
>Foo2 : Symbol(Foo2, Decl(unionAndIntersectionInference3.ts, 24, 8))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 26, 10))

    test(value: T): void;
>test : Symbol(test, Decl(unionAndIntersectionInference3.ts, 26, 16))
>value : Symbol(value, Decl(unionAndIntersectionInference3.ts, 27, 9))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 26, 10))
}

type Bar2<T> = {
>Bar2 : Symbol(Bar2, Decl(unionAndIntersectionInference3.ts, 28, 1))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 30, 10))

    test(value: T | PromiseLike<T>): void;
>test : Symbol(test, Decl(unionAndIntersectionInference3.ts, 30, 16))
>value : Symbol(value, Decl(unionAndIntersectionInference3.ts, 31, 9))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 30, 10))
>PromiseLike : Symbol(PromiseLike, Decl(lib.es5.d.ts, --, --))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 30, 10))
}

declare let g1: <T>(x: Foo2<T> | Bar2<T>) => Promise<T>;
>g1 : Symbol(g1, Decl(unionAndIntersectionInference3.ts, 34, 11))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 34, 17))
>x : Symbol(x, Decl(unionAndIntersectionInference3.ts, 34, 20))
>Foo2 : Symbol(Foo2, Decl(unionAndIntersectionInference3.ts, 24, 8))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 34, 17))
>Bar2 : Symbol(Bar2, Decl(unionAndIntersectionInference3.ts, 28, 1))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 34, 17))
>Promise : Symbol(Promise, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2018.promise.d.ts, --, --))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 34, 17))

declare let g2: <U>(x: Foo2<U> | Bar2<U>) => Promise<U>;
>g2 : Symbol(g2, Decl(unionAndIntersectionInference3.ts, 35, 11))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 35, 17))
>x : Symbol(x, Decl(unionAndIntersectionInference3.ts, 35, 20))
>Foo2 : Symbol(Foo2, Decl(unionAndIntersectionInference3.ts, 24, 8))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 35, 17))
>Bar2 : Symbol(Bar2, Decl(unionAndIntersectionInference3.ts, 28, 1))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 35, 17))
>Promise : Symbol(Promise, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --), Decl(lib.es2018.promise.d.ts, --, --))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 35, 17))

g1 = g2;
>g1 : Symbol(g1, Decl(unionAndIntersectionInference3.ts, 34, 11))
>g2 : Symbol(g2, Decl(unionAndIntersectionInference3.ts, 35, 11))

g2 = g1;
>g2 : Symbol(g2, Decl(unionAndIntersectionInference3.ts, 35, 11))
>g1 : Symbol(g1, Decl(unionAndIntersectionInference3.ts, 34, 11))

// Repro from #32572

declare function foo1<T>(obj: string[] & Iterable<T>): T;
>foo1 : Symbol(foo1, Decl(unionAndIntersectionInference3.ts, 38, 8))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 42, 22))
>obj : Symbol(obj, Decl(unionAndIntersectionInference3.ts, 42, 25))
>Iterable : Symbol(Iterable, Decl(lib.es2015.iterable.d.ts, --, --))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 42, 22))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 42, 22))

declare function foo2<T>(obj: string[] & T): T;
>foo2 : Symbol(foo2, Decl(unionAndIntersectionInference3.ts, 42, 57))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 43, 22))
>obj : Symbol(obj, Decl(unionAndIntersectionInference3.ts, 43, 25))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 43, 22))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 43, 22))

declare let sa: string[];
>sa : Symbol(sa, Decl(unionAndIntersectionInference3.ts, 45, 11))

declare let sx: string[] & { extra: number };
>sx : Symbol(sx, Decl(unionAndIntersectionInference3.ts, 46, 11))
>extra : Symbol(extra, Decl(unionAndIntersectionInference3.ts, 46, 28))

let x1 = foo1(sa);  // string
>x1 : Symbol(x1, Decl(unionAndIntersectionInference3.ts, 48, 3))
>foo1 : Symbol(foo1, Decl(unionAndIntersectionInference3.ts, 38, 8))
>sa : Symbol(sa, Decl(unionAndIntersectionInference3.ts, 45, 11))

let y1 = foo1(sx);  // string
>y1 : Symbol(y1, Decl(unionAndIntersectionInference3.ts, 49, 3))
>foo1 : Symbol(foo1, Decl(unionAndIntersectionInference3.ts, 38, 8))
>sx : Symbol(sx, Decl(unionAndIntersectionInference3.ts, 46, 11))

let x2 = foo2(sa);  // unknown
>x2 : Symbol(x2, Decl(unionAndIntersectionInference3.ts, 51, 3))
>foo2 : Symbol(foo2, Decl(unionAndIntersectionInference3.ts, 42, 57))
>sa : Symbol(sa, Decl(unionAndIntersectionInference3.ts, 45, 11))

let y2 = foo2(sx);  // { extra: number }
>y2 : Symbol(y2, Decl(unionAndIntersectionInference3.ts, 52, 3))
>foo2 : Symbol(foo2, Decl(unionAndIntersectionInference3.ts, 42, 57))
>sx : Symbol(sx, Decl(unionAndIntersectionInference3.ts, 46, 11))

// Repro from #33490

declare class Component<P> { props: P }
>Component : Symbol(Component, Decl(unionAndIntersectionInference3.ts, 52, 18))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 56, 24))
>props : Symbol(Component.props, Decl(unionAndIntersectionInference3.ts, 56, 28))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 56, 24))

export type ComponentClass<P> = new (props: P) => Component<P>;
>ComponentClass : Symbol(ComponentClass, Decl(unionAndIntersectionInference3.ts, 56, 39))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 58, 27))
>props : Symbol(props, Decl(unionAndIntersectionInference3.ts, 58, 37))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 58, 27))
>Component : Symbol(Component, Decl(unionAndIntersectionInference3.ts, 52, 18))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 58, 27))

export type FunctionComponent<P> = (props: P) => null;
>FunctionComponent : Symbol(FunctionComponent, Decl(unionAndIntersectionInference3.ts, 58, 63))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 59, 30))
>props : Symbol(props, Decl(unionAndIntersectionInference3.ts, 59, 36))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 59, 30))

export type ComponentType<P> = FunctionComponent<P> | ComponentClass<P>;
>ComponentType : Symbol(ComponentType, Decl(unionAndIntersectionInference3.ts, 59, 54))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 61, 26))
>FunctionComponent : Symbol(FunctionComponent, Decl(unionAndIntersectionInference3.ts, 58, 63))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 61, 26))
>ComponentClass : Symbol(ComponentClass, Decl(unionAndIntersectionInference3.ts, 56, 39))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 61, 26))

export interface RouteComponentProps { route: string }
>RouteComponentProps : Symbol(RouteComponentProps, Decl(unionAndIntersectionInference3.ts, 61, 72))
>route : Symbol(RouteComponentProps.route, Decl(unionAndIntersectionInference3.ts, 63, 38))

declare function withRouter<
>withRouter : Symbol(withRouter, Decl(unionAndIntersectionInference3.ts, 63, 54))

  P extends RouteComponentProps,
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 65, 28))
>RouteComponentProps : Symbol(RouteComponentProps, Decl(unionAndIntersectionInference3.ts, 61, 72))

  C extends ComponentType<P>
>C : Symbol(C, Decl(unionAndIntersectionInference3.ts, 66, 32))
>ComponentType : Symbol(ComponentType, Decl(unionAndIntersectionInference3.ts, 59, 54))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 65, 28))

>(
  component: C & ComponentType<P>
>component : Symbol(component, Decl(unionAndIntersectionInference3.ts, 68, 2))
>C : Symbol(C, Decl(unionAndIntersectionInference3.ts, 66, 32))
>ComponentType : Symbol(ComponentType, Decl(unionAndIntersectionInference3.ts, 59, 54))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 65, 28))

): ComponentClass<Omit<P, keyof RouteComponentProps>>;
>ComponentClass : Symbol(ComponentClass, Decl(unionAndIntersectionInference3.ts, 56, 39))
>Omit : Symbol(Omit, Decl(lib.es5.d.ts, --, --))
>P : Symbol(P, Decl(unionAndIntersectionInference3.ts, 65, 28))
>RouteComponentProps : Symbol(RouteComponentProps, Decl(unionAndIntersectionInference3.ts, 61, 72))

interface Props extends RouteComponentProps { username: string }
>Props : Symbol(Props, Decl(unionAndIntersectionInference3.ts, 70, 54))
>RouteComponentProps : Symbol(RouteComponentProps, Decl(unionAndIntersectionInference3.ts, 61, 72))
>username : Symbol(Props.username, Decl(unionAndIntersectionInference3.ts, 72, 45))

declare const MyComponent: ComponentType<Props>;
>MyComponent : Symbol(MyComponent, Decl(unionAndIntersectionInference3.ts, 74, 13))
>ComponentType : Symbol(ComponentType, Decl(unionAndIntersectionInference3.ts, 59, 54))
>Props : Symbol(Props, Decl(unionAndIntersectionInference3.ts, 70, 54))

withRouter(MyComponent);
>withRouter : Symbol(withRouter, Decl(unionAndIntersectionInference3.ts, 63, 54))
>MyComponent : Symbol(MyComponent, Decl(unionAndIntersectionInference3.ts, 74, 13))

// Repro from #33490

type AB<T> = { a: T } | { b: T };
>AB : Symbol(AB, Decl(unionAndIntersectionInference3.ts, 76, 24))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 80, 8))
>a : Symbol(a, Decl(unionAndIntersectionInference3.ts, 80, 14))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 80, 8))
>b : Symbol(b, Decl(unionAndIntersectionInference3.ts, 80, 25))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 80, 8))

// T & AB<U> normalizes to T & { a: U } | T & { b: U } below
declare function foo<T, U>(obj: T & AB<U>): [T, U];
>foo : Symbol(foo, Decl(unionAndIntersectionInference3.ts, 80, 33))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 83, 21))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 83, 23))
>obj : Symbol(obj, Decl(unionAndIntersectionInference3.ts, 83, 27))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 83, 21))
>AB : Symbol(AB, Decl(unionAndIntersectionInference3.ts, 76, 24))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 83, 23))
>T : Symbol(T, Decl(unionAndIntersectionInference3.ts, 83, 21))
>U : Symbol(U, Decl(unionAndIntersectionInference3.ts, 83, 23))

declare let ab: AB<string>;
>ab : Symbol(ab, Decl(unionAndIntersectionInference3.ts, 84, 11))
>AB : Symbol(AB, Decl(unionAndIntersectionInference3.ts, 76, 24))

let z = foo(ab);  // [AB<string>, string]
>z : Symbol(z, Decl(unionAndIntersectionInference3.ts, 86, 3))
>foo : Symbol(foo, Decl(unionAndIntersectionInference3.ts, 80, 33))
>ab : Symbol(ab, Decl(unionAndIntersectionInference3.ts, 84, 11))