56 lines
No EOL
2 KiB
Text
56 lines
No EOL
2 KiB
Text
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithNumericIndexer.ts(32,11): error TS2415: Class 'B3<T>' incorrectly extends base class 'A<T>'.
|
|
Index signatures are incompatible.
|
|
Type 'Derived' is not assignable to type 'T'.
|
|
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithNumericIndexer.ts(36,11): error TS2415: Class 'B4<T>' incorrectly extends base class 'A<T>'.
|
|
Index signatures are incompatible.
|
|
Type 'Derived2' is not assignable to type 'T'.
|
|
|
|
|
|
==== tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithNumericIndexer.ts (2 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: number]: Base;
|
|
}
|
|
|
|
class B extends A {
|
|
[x: number]: Derived; // ok
|
|
}
|
|
|
|
class B2 extends A {
|
|
[x: number]: Derived2; // ok
|
|
}
|
|
|
|
module Generics {
|
|
class A<T extends Base> {
|
|
[x: number]: T;
|
|
}
|
|
|
|
class B extends A<Base> {
|
|
[x: number]: Derived; // ok
|
|
}
|
|
|
|
class B2 extends A<Base> {
|
|
[x: number]: Derived2; // ok
|
|
}
|
|
|
|
class B3<T extends Base> extends A<T> {
|
|
~~
|
|
!!! error TS2415: Class 'B3<T>' incorrectly extends base class 'A<T>'.
|
|
!!! error TS2415: Index signatures are incompatible.
|
|
!!! error TS2415: Type 'Derived' is not assignable to type 'T'.
|
|
[x: number]: Derived; // error, BUG?
|
|
}
|
|
|
|
class B4<T extends Base> extends A<T> {
|
|
~~
|
|
!!! error TS2415: Class 'B4<T>' incorrectly extends base class 'A<T>'.
|
|
!!! error TS2415: Index signatures are incompatible.
|
|
!!! error TS2415: Type 'Derived2' is not assignable to type 'T'.
|
|
[x: number]: Derived2; // error, BUG?
|
|
}
|
|
} |