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'use strict';
class FreeList {
constructor(name, max, ctor) {
this.name = name;
this.ctor = ctor;
this.max = max;
this.list = [];
}
alloc() {
return this.list.length ?
this.list.pop() :
this.ctor.apply(this, arguments);
}
free(obj) {
if (this.list.length < this.max) {
this.list.push(obj);
return true;
}
return false;
}
}
module.exports = FreeList;
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