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=== tests/cases/conformance/controlFlow/controlFlowInOperator.ts ===
const a = 'a';
>a : "a"
>'a' : "a"
const b = 'b';
>b : "b"
>'b' : "b"
const d = 'd';
>d : "d"
>'d' : "d"
type A = { [a]: number; };
>A : { a: number; }
>[a] : number
>a : "a"
type B = { [b]: string; };
>B : { b: string; }
>[b] : string
>b : "b"
declare const c: A | B;
>c : A | B
if ('a' in c) {
>'a' in c : boolean
>'a' : "a"
>c : A | B
c; // A
>c : A
c['a']; // number;
>c['a'] : number
>c : A
>'a' : "a"
}
if ('d' in c) {
>'d' in c : boolean
>'d' : "d"
>c : A | B
c; // never
>c : (A | B) & Record<"d", unknown>
}
if (a in c) {
>a in c : boolean
>a : "a"
>c : A | B
c; // A
>c : A
c[a]; // number;
>c[a] : number
>c : A
>a : "a"
}
if (d in c) {
>d in c : boolean
>d : "d"
>c : A | B
c; // never
>c : (A | B) & Record<"d", unknown>
}
|
