funfix-effect
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Sub-package of Funfix defining monadic data types for dealing with laziness and side effects
42 lines (41 loc) • 1.22 kB
TypeScript
/*!
* Copyright (c) 2017-2018 by The Funfix Project Developers.
* Some rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* We don't need the full power of JS's iterators, just a way
* to traverse data structures.
*
* @hidden
*/
export interface IteratorLike<A> {
next(): {
done: boolean;
value?: A;
};
}
/**
* Reusable empty `IteratorLike` reference.
*
* @hidden
*/
export declare const emptyIteratorRef: IteratorLike<never>;
/**
* Given an array or an `Iterable`, returns a simple iterator type
* that we can use to traverse the given list lazily.
*
* @hidden
*/
export declare function iteratorOf<A>(list: A[] | Iterable<A>): IteratorLike<A>;