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=== tests/cases/conformance/types/typeRelationships/subtypesAndSuperTypes/subtypingWithObjectMembersOptionality4.ts ===
// Base has required property, derived adds an optional property, no errors
interface Base { foo: string; }
>Base : Symbol(Base, Decl(subtypingWithObjectMembersOptionality4.ts, 0, 0))
>foo : Symbol(Base.foo, Decl(subtypingWithObjectMembersOptionality4.ts, 2, 16))
interface Derived extends Base { bar: string; }
>Derived : Symbol(Derived, Decl(subtypingWithObjectMembersOptionality4.ts, 2, 31))
>Base : Symbol(Base, Decl(subtypingWithObjectMembersOptionality4.ts, 0, 0))
>bar : Symbol(Derived.bar, Decl(subtypingWithObjectMembersOptionality4.ts, 3, 32))
interface T {
>T : Symbol(T, Decl(subtypingWithObjectMembersOptionality4.ts, 3, 47))
Foo: Base;
>Foo : Symbol(T.Foo, Decl(subtypingWithObjectMembersOptionality4.ts, 5, 13))
>Base : Symbol(Base, Decl(subtypingWithObjectMembersOptionality4.ts, 0, 0))
}
interface S extends T {
>S : Symbol(S, Decl(subtypingWithObjectMembersOptionality4.ts, 7, 1))
>T : Symbol(T, Decl(subtypingWithObjectMembersOptionality4.ts, 3, 47))
Foo2?: Derived // ok
>Foo2 : Symbol(S.Foo2, Decl(subtypingWithObjectMembersOptionality4.ts, 9, 23))
>Derived : Symbol(Derived, Decl(subtypingWithObjectMembersOptionality4.ts, 2, 31))
}
interface T2 {
>T2 : Symbol(T2, Decl(subtypingWithObjectMembersOptionality4.ts, 11, 1))
1: Base;
>Base : Symbol(Base, Decl(subtypingWithObjectMembersOptionality4.ts, 0, 0))
}
interface S2 extends T2 {
>S2 : Symbol(S2, Decl(subtypingWithObjectMembersOptionality4.ts, 15, 1))
>T2 : Symbol(T2, Decl(subtypingWithObjectMembersOptionality4.ts, 11, 1))
2?: Derived; // ok
>Derived : Symbol(Derived, Decl(subtypingWithObjectMembersOptionality4.ts, 2, 31))
}
interface T3 {
>T3 : Symbol(T3, Decl(subtypingWithObjectMembersOptionality4.ts, 19, 1))
'1': Base;
>Base : Symbol(Base, Decl(subtypingWithObjectMembersOptionality4.ts, 0, 0))
}
interface S3 extends T3 {
>S3 : Symbol(S3, Decl(subtypingWithObjectMembersOptionality4.ts, 23, 1))
>T3 : Symbol(T3, Decl(subtypingWithObjectMembersOptionality4.ts, 19, 1))
'1.0'?: Derived; // ok
>Derived : Symbol(Derived, Decl(subtypingWithObjectMembersOptionality4.ts, 2, 31))
}
// object literal case
var a: { Foo: Base; }
>a : Symbol(a, Decl(subtypingWithObjectMembersOptionality4.ts, 30, 3))
>Foo : Symbol(Foo, Decl(subtypingWithObjectMembersOptionality4.ts, 30, 8))
>Base : Symbol(Base, Decl(subtypingWithObjectMembersOptionality4.ts, 0, 0))
var b: { Foo2?: Derived; }
>b : Symbol(b, Decl(subtypingWithObjectMembersOptionality4.ts, 31, 3))
>Foo2 : Symbol(Foo2, Decl(subtypingWithObjectMembersOptionality4.ts, 31, 8))
>Derived : Symbol(Derived, Decl(subtypingWithObjectMembersOptionality4.ts, 2, 31))
var r = true ? a : b; // ok
>r : Symbol(r, Decl(subtypingWithObjectMembersOptionality4.ts, 32, 3))
>a : Symbol(a, Decl(subtypingWithObjectMembersOptionality4.ts, 30, 3))
>b : Symbol(b, Decl(subtypingWithObjectMembersOptionality4.ts, 31, 3))
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