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=== tests/cases/compiler/indexSignatureAndMappedType.ts ===
// A mapped type { [P in K]: X }, where K is a generic type, is related to
// { [key: string]: Y } if X is related to Y.
function f1<T, K extends string>(x: { [key: string]: T }, y: Record<K, T>) {
>f1 : <T, K extends string>(x: { [key: string]: T; }, y: Record<K, T>) => void
>x : { [key: string]: T; }
>key : string
>y : Record<K, T>
x = y;
>x = y : Record<K, T>
>x : { [key: string]: T; }
>y : Record<K, T>
y = x; // Error
>y = x : { [key: string]: T; }
>y : Record<K, T>
>x : { [key: string]: T; }
}
function f2<T>(x: { [key: string]: T }, y: Record<string, T>) {
>f2 : <T>(x: { [key: string]: T; }, y: Record<string, T>) => void
>x : { [key: string]: T; }
>key : string
>y : Record<string, T>
x = y;
>x = y : Record<string, T>
>x : { [key: string]: T; }
>y : Record<string, T>
y = x;
>y = x : { [key: string]: T; }
>y : Record<string, T>
>x : { [key: string]: T; }
}
function f3<T, U, K extends string>(x: { [key: string]: T }, y: Record<K, U>) {
>f3 : <T, U, K extends string>(x: { [key: string]: T; }, y: Record<K, U>) => void
>x : { [key: string]: T; }
>key : string
>y : Record<K, U>
x = y; // Error
>x = y : Record<K, U>
>x : { [key: string]: T; }
>y : Record<K, U>
y = x; // Error
>y = x : { [key: string]: T; }
>y : Record<K, U>
>x : { [key: string]: T; }
}
// Repro from #14548
type Dictionary = {
>Dictionary : { [key: string]: string; }
[key: string]: string;
>key : string
};
interface IBaseEntity {
name: string;
>name : string
properties: Dictionary;
>properties : Dictionary
}
interface IEntity<T extends string> extends IBaseEntity {
properties: Record<T, string>;
>properties : Record<T, string>
}
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