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tests/cases/conformance/interfaces/declarationMerging/mergedInheritedMembersSatisfyAbstractBase.ts(19,11): error TS2320: Interface 'IncorrectlyExtends' cannot simultaneously extend types 'BaseClass' and 'IncorrectGetters'.
Named property 'bar' of types 'BaseClass' and 'IncorrectGetters' are not identical.
==== tests/cases/conformance/interfaces/declarationMerging/mergedInheritedMembersSatisfyAbstractBase.ts (1 errors) ====
abstract class BaseClass {
abstract bar: number;
}
class Broken extends BaseClass {}
// declaration merging should satisfy abstract bar
interface IGetters {
bar: number;
}
interface Broken extends IGetters {}
new Broken().bar
class IncorrectlyExtends extends BaseClass {}
interface IncorrectGetters {
bar: string;
}
interface IncorrectlyExtends extends IncorrectGetters {}
~~~~~~~~~~~~~~~~~~
!!! error TS2320: Interface 'IncorrectlyExtends' cannot simultaneously extend types 'BaseClass' and 'IncorrectGetters'.
!!! error TS2320: Named property 'bar' of types 'BaseClass' and 'IncorrectGetters' are not identical.
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