TypeScript/tests/cases/compiler/conditionalTypeSimplification.ts

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2019-04-12 04:22:01 +02:00
// Repro from #30794
interface AbstractSchema<S, V> {
m1<T> (v: T): SchemaType<S, Exclude<V, T>>;
m2<T> (v: T): SchemaType<S, T>;
}
type SchemaType<S, V> = S extends object ? AnySchema<V> : never;
interface AnySchema<V> extends AnySchemaType<AnySchema<undefined>, V> { }
interface AnySchemaType<S extends AbstractSchema<any, any>, V> extends AbstractSchema<S, V> { }