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tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers.ts(12,7): error TS2415: Class 'B' incorrectly extends base class 'A'.
Types of property 'bar' are incompatible.
Type 'string' is not assignable to type 'Base'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers.ts(22,7): error TS2415: Class 'B2' incorrectly extends base class 'A2'.
Types of property '2.0' are incompatible.
Type 'string' is not assignable to type 'Base'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers.ts(32,7): error TS2415: Class 'B3' incorrectly extends base class 'A3'.
Types of property ''2.0'' are incompatible.
Type 'string' is not assignable to type 'Base'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers.ts(43,11): error TS2415: Class 'B' incorrectly extends base class 'A'.
Types of property 'bar' are incompatible.
Type 'string' is not assignable to type 'Base'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers.ts(53,11): error TS2415: Class 'B2' incorrectly extends base class 'A2'.
Types of property '2.0' are incompatible.
Type 'string' is not assignable to type 'Base'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers.ts(63,11): error TS2415: Class 'B3' incorrectly extends base class 'A3'.
Types of property ''2.0'' are incompatible.
Type 'string' is not assignable to type 'Base'.
==== tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers.ts (6 errors) ====
class Base { foo: string; }
class Derived extends Base { bar: string; }
class Derived2 extends Derived { baz: string; }
// N and M have the same name, same accessibility, same optionality, and N is a subtype of M
// foo properties are valid, bar properties cause errors in the derived class declarations
class A {
foo: Base;
bar: Base;
}
class B extends A {
~
!!! error TS2415: Class 'B' incorrectly extends base class 'A'.
!!! error TS2415: Types of property 'bar' are incompatible.
!!! error TS2415: Type 'string' is not assignable to type 'Base'.
foo: Derived; // ok
bar: string; // error
}
class A2 {
1: Base;
2.0: Base;
}
class B2 extends A2 {
~~
!!! error TS2415: Class 'B2' incorrectly extends base class 'A2'.
!!! error TS2415: Types of property '2.0' are incompatible.
!!! error TS2415: Type 'string' is not assignable to type 'Base'.
1: Derived; // ok
2: string; // error
}
class A3 {
'1': Base;
'2.0': Base;
}
class B3 extends A3 {
~~
!!! error TS2415: Class 'B3' incorrectly extends base class 'A3'.
!!! error TS2415: Types of property ''2.0'' are incompatible.
!!! error TS2415: Type 'string' is not assignable to type 'Base'.
'1': Derived; // ok
'2.0': string; // error
}
module TwoLevels {
class A {
foo: Base;
bar: Base;
}
class B extends A {
~
!!! error TS2415: Class 'B' incorrectly extends base class 'A'.
!!! error TS2415: Types of property 'bar' are incompatible.
!!! error TS2415: Type 'string' is not assignable to type 'Base'.
foo: Derived2; // ok
bar: string; // error
}
class A2 {
1: Base;
2.0: Base;
}
class B2 extends A2 {
~~
!!! error TS2415: Class 'B2' incorrectly extends base class 'A2'.
!!! error TS2415: Types of property '2.0' are incompatible.
!!! error TS2415: Type 'string' is not assignable to type 'Base'.
1: Derived2; // ok
2: string; // error
}
class A3 {
'1': Base;
'2.0': Base;
}
class B3 extends A3 {
~~
!!! error TS2415: Class 'B3' incorrectly extends base class 'A3'.
!!! error TS2415: Types of property ''2.0'' are incompatible.
!!! error TS2415: Type 'string' is not assignable to type 'Base'.
'1': Derived2; // ok
'2.0': string; // error
}
}
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