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=== tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithNumericIndexer5.ts ===
// Derived type indexer must be subtype of base type indexer
interface Base { foo: string; }
>foo : string
interface Derived extends Base { bar: string; }
>bar : string
interface Derived2 extends Derived { baz: string; }
>baz : string
interface A {
[x: number]: Derived;
>x : number
}
class B implements A {
>B : B
[x: string]: Base; // error
>x : string
}
class B2 implements A {
>B2 : B2
[x: string]: Derived2; // ok
>x : string
}
module Generics {
>Generics : typeof Generics
interface A<T extends Base> {
[x: number]: T;
>x : number
}
class B implements A<Base> {
>B : B
[x: string]: Derived; // ok
>x : string
}
class B2 implements A<Derived> {
>B2 : B2
[x: string]: Derived2; // ok
>x : string
}
class B3<T extends Derived> implements A<T> {
>B3 : B3<T>
[x: string]: Base; // error
>x : string
}
class B4<T extends Derived> implements A<T> {
>B4 : B4<T>
[x: string]: Derived; // error
>x : string
}
class B5<T extends Derived2> implements A<T> {
>B5 : B5<T>
[x: string]: Derived2; // error
>x : string
}
}
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