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tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithStringIndexer4.ts(11,7): error TS2415: Class 'B' incorrectly extends base class 'A'.
Index signatures are incompatible.
Type 'string' is not assignable to type 'Derived'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithStringIndexer4.ts(20,11): error TS2415: Class 'B' incorrectly extends base class 'A<Base>'.
Index signatures are incompatible.
Type 'string' is not assignable to type 'Base'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithStringIndexer4.ts(20,23): error TS2344: Type 'Base' does not satisfy the constraint 'Derived'.
Property 'bar' is missing in type 'Base'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithStringIndexer4.ts(24,11): error TS2415: Class 'B3<T>' incorrectly extends base class 'A<T>'.
Index signatures are incompatible.
Type 'string' is not assignable to type 'T'.
==== tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithStringIndexer4.ts (4 errors) ====
// Derived type indexer must be subtype of base type indexer
interface Base { foo: string; }
interface Derived extends Base { bar: string; }
interface Derived2 extends Derived { baz: string; }
class A {
[x: string]: Derived;
}
class B extends A {
~
!!! error TS2415: Class 'B' incorrectly extends base class 'A'.
!!! error TS2415: Index signatures are incompatible.
!!! error TS2415: Type 'string' is not assignable to type 'Derived'.
[x: string]: string; // error
}
module Generics {
class A<T extends Derived> {
[x: string]: T;
}
class B extends A<Base> {
~
!!! error TS2415: Class 'B' incorrectly extends base class 'A<Base>'.
!!! error TS2415: Index signatures are incompatible.
!!! error TS2415: Type 'string' is not assignable to type 'Base'.
~~~~
!!! error TS2344: Type 'Base' does not satisfy the constraint 'Derived'.
!!! error TS2344: Property 'bar' is missing in type 'Base'.
[x: string]: string; // error
}
class B3<T extends Derived> extends A<T> {
~~
!!! error TS2415: Class 'B3<T>' incorrectly extends base class 'A<T>'.
!!! error TS2415: Index signatures are incompatible.
!!! error TS2415: Type 'string' is not assignable to type 'T'.
[x: string]: string; // error
}
}
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