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tests/cases/conformance/types/intersection/intersectionWithIndexSignatures.ts(17,1): error TS2322: Type '{ x: A; } & { y: B; }' is not assignable to type '{ [key: string]: A; }'.
Property 'y' is incompatible with index signature.
Property 'a' is missing in type 'B' but required in type 'A'.
tests/cases/conformance/types/intersection/intersectionWithIndexSignatures.ts(27,10): error TS2339: Property 'b' does not exist on type '{ a: string; }'.
tests/cases/conformance/types/intersection/intersectionWithIndexSignatures.ts(29,7): error TS2322: Type 's' is not assignable to type '{ [key: string]: { a: string; b: string; }; }'.
'string' index signatures are incompatible.
Property 'b' is missing in type '{ a: string; }' but required in type '{ a: string; b: string; }'.
tests/cases/conformance/types/intersection/intersectionWithIndexSignatures.ts(35,1): error TS2322: Type '{ a: string; } & { b: number; }' is not assignable to type '{ [key: string]: string; }'.
Property 'b' is incompatible with index signature.
Type 'number' is not assignable to type 'string'.
==== tests/cases/conformance/types/intersection/intersectionWithIndexSignatures.ts (4 errors) ====
type A = { a: string };
type B = { b: string };
declare let sa1: { x: A & B };
declare let sa2: { x: A } & { x: B };
declare let ta1: { [key: string]: A & B };
declare let ta2: { [key: string]: A } & { [key: string]: B };
ta1 = sa1;
ta1 = sa2;
ta2 = sa1;
ta2 = sa2;
declare let sb1: { x: A } & { y: B };
declare let tb1: { [key: string]: A };
tb1 = sb1; // Error
~~~
!!! error TS2322: Type '{ x: A; } & { y: B; }' is not assignable to type '{ [key: string]: A; }'.
!!! error TS2322: Property 'y' is incompatible with index signature.
!!! error TS2322: Property 'a' is missing in type 'B' but required in type 'A'.
!!! related TS2728 tests/cases/conformance/types/intersection/intersectionWithIndexSignatures.ts:1:12: 'a' is declared here.
// Repro from #32484
type constr<Source, Tgt> = { [K in keyof Source]: string } & Pick<Tgt, Exclude<keyof Tgt, keyof Source>>;
type s = constr<{}, { [key: string]: { a: string } }>;
declare const q: s;
q["asd"].a.substr(1);
q["asd"].b; // Error
~
!!! error TS2339: Property 'b' does not exist on type '{ a: string; }'.
const d: { [key: string]: {a: string, b: string} } = q; // Error
~
!!! error TS2322: Type 's' is not assignable to type '{ [key: string]: { a: string; b: string; }; }'.
!!! error TS2322: 'string' index signatures are incompatible.
!!! error TS2322: Property 'b' is missing in type '{ a: string; }' but required in type '{ a: string; b: string; }'.
!!! related TS2728 tests/cases/conformance/types/intersection/intersectionWithIndexSignatures.ts:29:39: 'b' is declared here.
// Repro from #32484
declare let ss: { a: string } & { b: number };
declare let tt: { [key: string]: string };
tt = ss; // Error
~~
!!! error TS2322: Type '{ a: string; } & { b: number; }' is not assignable to type '{ [key: string]: string; }'.
!!! error TS2322: Property 'b' is incompatible with index signature.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
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