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=== tests/cases/conformance/types/typeRelationships/recursiveTypes/nominalSubtypeCheckOfTypeParameter.ts ===
interface BinaryTuple<T, S> {
first: T
>first : T
second: S
>second : S
}
interface Sequence<T> {
hasNext(): boolean
>hasNext : () => boolean
pop(): T
>pop : () => T
zip<S>(seq: Sequence<S>): Sequence<BinaryTuple<T, S>>
>zip : <S>(seq: Sequence<S>) => Sequence<BinaryTuple<T, S>>
>seq : Sequence<S>
}
// error, despite the fact that the code explicitly says List<T> extends Sequence<T>, the current rules for infinitely expanding type references
// perform nominal subtyping checks that allow variance for type arguments, but not nominal subtyping for the generic type itself
interface List<T> extends Sequence<T> {
getLength(): number
>getLength : () => number
zip<S>(seq: Sequence<S>): List<BinaryTuple<T, S>>
>zip : <S>(seq: Sequence<S>) => List<BinaryTuple<T, S>>
>seq : Sequence<S>
}
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