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//// [subtypingWithObjectMembersOptionality3.ts]
// Base property is optional and derived type has no property of that name
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
//// [subtypingWithObjectMembersOptionality3.js]
// Base property is optional and derived type has no property of that name
// object literal case
var a;
var b;
var r = true ? a : b; // ok
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