TypeScript/tests/cases/compiler/indexerConstraints2.ts

81 lines
1.1 KiB
TypeScript

class A { a: number; }
class B extends A { b: number; }
// Inheritance
class F {
[s: string]: B
}
class G extends F {
[n: number]: A
}
// Other way
class H {
[n: number]: A
}
class I extends H {
[s: string]: B
}
// With hidden indexer
class J {
[n: number]: {}
}
class K extends J {
[n: number]: A;
[s: string]: B;
}
type AliasedNumber = number;
interface L {
[n: AliasedNumber]: A;
}
type AliasedString = string;
interface M {
[s: AliasedString]: A;
}
type AliasedBoolean = boolean;
interface N {
[b: AliasedBoolean]: A;
}
type IndexableUnion = "foo" | "bar";
interface O {
[u: IndexableUnion]: A;
}
type NonIndexableUnion = boolean | {};
interface P {
[u: NonIndexableUnion]: A;
}
type NonIndexableUnion2 = string | number;
interface Q {
[u: NonIndexableUnion2]: A;
}
type NonIndexableUnion3 = "foo" | 42;
interface R {
[u: NonIndexableUnion3]: A;
}
interface S {
[u: "foo" | "bar"]: A;
}
type Key = string;
interface T {
[key: Key]
}