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=== tests/cases/compiler/nonInferrableTypePropagation2.ts ===
export interface Predicate<A> {
(a: A): boolean
>a : A
}
interface Left<E> {
readonly _tag: 'Left'
>_tag : "Left"
readonly left: E
>left : E
}
interface Right<A> {
readonly _tag: 'Right'
>_tag : "Right"
readonly right: A
>right : A
}
type Either<E, A> = Left<E> | Right<A>;
>Either : Either<E, A>
interface Refinement<A, B extends A> {
(a: A): a is B
>a : A
}
declare const filter: {
>filter : { <A, B extends A>(refinement: Refinement<A, B>): (as: readonly A[]) => readonly B[]; <A>(predicate: Predicate<A>): <B extends A>(bs: readonly B[]) => readonly B[]; <A>(predicate: Predicate<A>): (as: readonly A[]) => readonly A[]; }
<A, B extends A>(refinement: Refinement<A, B>): (as: ReadonlyArray<A>) => ReadonlyArray<B>
>refinement : Refinement<A, B>
>as : readonly A[]
<A>(predicate: Predicate<A>): <B extends A>(bs: ReadonlyArray<B>) => ReadonlyArray<B>
>predicate : Predicate<A>
>bs : readonly B[]
<A>(predicate: Predicate<A>): (as: ReadonlyArray<A>) => ReadonlyArray<A>
>predicate : Predicate<A>
>as : readonly A[]
};
declare function pipe<A, B>(a: A, ab: (a: A) => B): B;
>pipe : <A, B>(a: A, ab: (a: A) => B) => B
>a : A
>ab : (a: A) => B
>a : A
declare function exists<A>(predicate: Predicate<A>): <E>(ma: Either<E, A>) => boolean;
>exists : <A>(predicate: Predicate<A>) => <E>(ma: Either<E, A>) => boolean
>predicate : Predicate<A>
>ma : Either<E, A>
declare const es: Either<string, number>[];
>es : Either<string, number>[]
const x = pipe(es, filter(exists((n) => n > 0)))
>x : readonly Either<string, number>[]
>pipe(es, filter(exists((n) => n > 0))) : readonly Either<string, number>[]
>pipe : <A, B>(a: A, ab: (a: A) => B) => B
>es : Either<string, number>[]
>filter(exists((n) => n > 0)) : (as: readonly Either<string, number>[]) => readonly Either<string, number>[]
>filter : { <A, B extends A>(refinement: Refinement<A, B>): (as: readonly A[]) => readonly B[]; <A>(predicate: Predicate<A>): <B extends A>(bs: readonly B[]) => readonly B[]; <A>(predicate: Predicate<A>): (as: readonly A[]) => readonly A[]; }
>exists((n) => n > 0) : <E>(ma: Either<E, number>) => boolean
>exists : <A>(predicate: Predicate<A>) => <E>(ma: Either<E, A>) => boolean
>(n) => n > 0 : (n: number) => boolean
>n : number
>n > 0 : boolean
>n : number
>0 : 0
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