@hclsoftware/secagent/src/Utils/IASTHashSet.js

IAST agent

//IASTIGNORE
/*
 * ****************************************************
 * Licensed Materials - Property of HCL.
 * (c) Copyright HCL Technologies Ltd. 2017, 2025.
 * Note to U.S. Government Users *Restricted Rights.
 * ****************************************************
 */

const {IASTHashMap} = require('./IASTHashMap')
const Utils = require('./Utils')

module.exports.IASTHashSet = class IASTHashSet {
    constructor (equals, hashFunc) {
        this.hashMap = new IASTHashMap(equals, hashFunc)
    }

    add (value) {
        this.hashMap.set(value, 1)
    }

    delete (key) {
        return this.hashMap.delete(key)
    }

    contains (key) {
        return this.hashMap.containsKey(key)
    }

    get length () {
        return this.hashMap.length
    }

    equals (other) {
        if (other.length !== this.length) {
            return false
        }
        for (const item of other) {
            if (!this.contains(item)) {
                return false
            }
        }
        return true
    }

    join (delimeter) {
        const stringBuilder = []
        for (const item of this) {
            stringBuilder.push(item.toString())
        }
        return stringBuilder.join(delimeter)
    }

    [Symbol.iterator] () {
        return {
            iter: this.hashMap[Symbol.iterator](),
            next () {
                const next = this.iter.next()
                return { value: (next.value != null ? next.value.key : null), done: next.done }
            }
        }
    }

    get hashCode () {
        const hashObj = Utils.createHashObject()
        for (const item of this) {
            hashObj.update(item.hashCode)
        }
        return hashObj.produce()
    }

    forEach (callback) {
        // Iterate over the keys in the HashMap and apply the callback to each key
        this.hashMap.keys().forEach(key => callback(key));
    }
}