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=== tests/cases/conformance/types/intersection/intersectionOfUnionNarrowing.ts ===
interface X {
>X : Symbol(X, Decl(intersectionOfUnionNarrowing.ts, 0, 0))
a?: { aProp: string };
>a : Symbol(X.a, Decl(intersectionOfUnionNarrowing.ts, 0, 13))
>aProp : Symbol(aProp, Decl(intersectionOfUnionNarrowing.ts, 1, 7))
b?: { bProp: string };
>b : Symbol(X.b, Decl(intersectionOfUnionNarrowing.ts, 1, 24))
>bProp : Symbol(bProp, Decl(intersectionOfUnionNarrowing.ts, 2, 7))
}
type AorB = { a: object; b: undefined } | { a: undefined; b: object };
>AorB : Symbol(AorB, Decl(intersectionOfUnionNarrowing.ts, 3, 1))
>a : Symbol(a, Decl(intersectionOfUnionNarrowing.ts, 4, 13))
>b : Symbol(b, Decl(intersectionOfUnionNarrowing.ts, 4, 24))
>a : Symbol(a, Decl(intersectionOfUnionNarrowing.ts, 4, 43))
>b : Symbol(b, Decl(intersectionOfUnionNarrowing.ts, 4, 57))
declare const q: X & AorB;
>q : Symbol(q, Decl(intersectionOfUnionNarrowing.ts, 6, 13))
>X : Symbol(X, Decl(intersectionOfUnionNarrowing.ts, 0, 0))
>AorB : Symbol(AorB, Decl(intersectionOfUnionNarrowing.ts, 3, 1))
if (q.a !== undefined) {
>q.a : Symbol(a, Decl(intersectionOfUnionNarrowing.ts, 0, 13), Decl(intersectionOfUnionNarrowing.ts, 4, 13), Decl(intersectionOfUnionNarrowing.ts, 0, 13), Decl(intersectionOfUnionNarrowing.ts, 4, 43))
>q : Symbol(q, Decl(intersectionOfUnionNarrowing.ts, 6, 13))
>a : Symbol(a, Decl(intersectionOfUnionNarrowing.ts, 0, 13), Decl(intersectionOfUnionNarrowing.ts, 4, 13), Decl(intersectionOfUnionNarrowing.ts, 0, 13), Decl(intersectionOfUnionNarrowing.ts, 4, 43))
>undefined : Symbol(undefined)
q.a.aProp;
>q.a.aProp : Symbol(aProp, Decl(intersectionOfUnionNarrowing.ts, 1, 7))
>q.a : Symbol(a, Decl(intersectionOfUnionNarrowing.ts, 0, 13), Decl(intersectionOfUnionNarrowing.ts, 4, 13))
>q : Symbol(q, Decl(intersectionOfUnionNarrowing.ts, 6, 13))
>a : Symbol(a, Decl(intersectionOfUnionNarrowing.ts, 0, 13), Decl(intersectionOfUnionNarrowing.ts, 4, 13))
>aProp : Symbol(aProp, Decl(intersectionOfUnionNarrowing.ts, 1, 7))
} else {
// q.b is previously incorrectly inferred as potentially undefined
q.b.bProp;
>q.b.bProp : Symbol(bProp, Decl(intersectionOfUnionNarrowing.ts, 2, 7))
>q.b : Symbol(b, Decl(intersectionOfUnionNarrowing.ts, 1, 24), Decl(intersectionOfUnionNarrowing.ts, 4, 57))
>q : Symbol(q, Decl(intersectionOfUnionNarrowing.ts, 6, 13))
>b : Symbol(b, Decl(intersectionOfUnionNarrowing.ts, 1, 24), Decl(intersectionOfUnionNarrowing.ts, 4, 57))
>bProp : Symbol(bProp, Decl(intersectionOfUnionNarrowing.ts, 2, 7))
}
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