"use strict";"use strict";Various methods of both synchronous and asynchronous iterators and generators transport iterations, which represent either a yielded value of an ongoing sequence or the return value of a sequence that has terminated. While object literals are sufficient to capture iterations, the iteration constructor is handy for readability and allows V8 at least to use a hidden class for all instances.
module.exports = Iteration;
function Iteration(value, done, index) {
this.value = value;
this.done = done;
this.index = index;
}The Collections library operators, and therefore the Jasminum expectation
operators, defer to the equals method of any object that implements it.
Iteration.prototype.equals = function (that, equals, memo) {
if (!that) return false;
return (
equals(this.value, that.value, equals, memo) &&
this.index === that.index &&
this.done === that.done
);
};The done iteration singleton suffices for many cases where a terminal
iteration does not need to carry a return value.
This singleton exists only to avoid unnecessarily allocating a new iteration
for each of these cases.
Iteration.done = new Iteration(undefined, true, undefined);