PooledClassの実装

pooledClass.js

export default class PooledClass {
    constructor(clazz) {
        this.clazz = clazz;
        this.pool = [];
    }
    alloc(...args) {
        let instance = this.pool.pop();
        if (!instance) {
            instance = new this.clazz();
        }
        instance.init(...args);
    }
    dealloc(instance) {
        this.pool.push(instance);
    }
}