iteragain/dist/cjs/internal/TriplewiseIterator.js

Javascript Iterable/Iterator/Generator-function utilities.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.TriplewiseIterator = void 0;
/** An iterator that collects (triplets) from the input `Iterator<T>`, like: [T, T, T]. */
class TriplewiseIterator {
    constructor(iterator) {
        this.iterator = iterator;
        this.prev = [];
    }
    [Symbol.iterator]() {
        return this;
    }
    next(...args) {
        while (this.prev.length !== 3) {
            const next = this.iterator.next(...args);
            // if (next.done) return (this.next = () => ({ done: true, value: undefined }))();
            if (next.done)
                return { done: true, value: undefined };
            this.prev.push(next.value);
        }
        const value = this.prev.slice();
        this.prev.shift();
        return { done: false, value };
    }
}
exports.TriplewiseIterator = TriplewiseIterator;
exports.default = TriplewiseIterator;
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