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//// [subtypingWithObjectMembersOptionality4.ts]
// Base has required property, derived adds an optional property, no errors
interface Base { foo: string; }
interface Derived extends Base { bar: string; }
interface T {
Foo: Base;
}
interface S extends T {
Foo2?: Derived // ok
}
interface T2 {
1: Base;
}
interface S2 extends T2 {
2?: Derived; // ok
}
interface T3 {
'1': Base;
}
interface S3 extends T3 {
'1.0'?: Derived; // ok
}
// object literal case
var a: { Foo: Base; }
var b: { Foo2?: Derived; }
var r = true ? a : b; // ok
//// [subtypingWithObjectMembersOptionality4.js]
// Base has required property, derived adds an optional property, no errors
// object literal case
var a;
var b;
var r = true ? a : b; // ok
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