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tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers5.ts(16,11): error TS2420: Class 'B' incorrectly implements interface 'A'.
Property 'foo' is missing in type 'B'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers5.ts(24,11): error TS2420: Class 'B2' incorrectly implements interface 'A2'.
Property '1' is missing in type 'B2'.
tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers5.ts(32,11): error TS2420: Class 'B3' incorrectly implements interface 'A3'.
Property ''1'' is missing in type 'B3'.
==== tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembers5.ts (3 errors) ====
interface Base {
foo: string;
}
interface Derived extends Base {
bar: 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
module NotOptional {
interface A {
foo: Base;
}
class B implements A {
~
!!! error TS2420: Class 'B' incorrectly implements interface 'A'.
!!! error TS2420: Property 'foo' is missing in type 'B'.
fooo: Derived; // error
}
interface A2 {
1: Base;
}
class B2 implements A2 {
~~
!!! error TS2420: Class 'B2' incorrectly implements interface 'A2'.
!!! error TS2420: Property '1' is missing in type 'B2'.
2: Derived; // error
}
interface A3 {
'1': Base;
}
class B3 implements A3 {
~~
!!! error TS2420: Class 'B3' incorrectly implements interface 'A3'.
!!! error TS2420: Property ''1'' is missing in type 'B3'.
'1.0': Derived; // error
}
}
// same cases as above but with optional
module Optional {
interface A {
foo?: Base;
}
class B implements A {
fooo: Derived; // ok
}
interface A2 {
1?: Base;
}
class B2 implements A2 {
2: Derived; // ok
}
interface A3 {
'1'?: Base;
}
class B3 implements A3 {
'1.0': Derived; // ok
}
}
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