ultra-mega-enumerator/dist/enumerations/KCompositionEnumeration.js

Ultra Mega Enumerator is a lightweight library designed to enumerate various combinatorial objects.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.KCompositionEnumeration = void 0;
const AbstractEnumeration_1 = require("./AbstractEnumeration");
const Composition_1 = require("./../objects/Composition");
const CombinationEnumeration_1 = require("./CombinationEnumeration");
class KCompositionEnumeration extends AbstractEnumeration_1.AbstractEnumeration {
    constructor(n, k) {
        super();
        if (n < 1) {
            throw new Error("Invalid argument: n must be at least 1.");
        }
        if (k < 1) {
            throw new Error("Invalid argument: k must be at least 1.");
        }
        this.ce = new CombinationEnumeration_1.CombinationEnumeration(n - 1, k - 1);
        this.n = n;
    }
    nextElement() {
        if (!this.hasMoreElements()) {
            throw new Error("No such element");
        }
        return Composition_1.Composition.compositionFromBitSet(this.ce.nextElement());
    }
    hasMoreElements() {
        return this.ce.hasMoreElements();
    }
}
exports.KCompositionEnumeration = KCompositionEnumeration;
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