30 lines
959 B
JavaScript
30 lines
959 B
JavaScript
|
"use strict";
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
const utils_1 = require("./utils");
|
||
|
|
class FlattenIterator {
|
||
|
|
constructor(outer) {
|
||
|
|
this.outer = outer;
|
||
|
|
}
|
||
|
|
next() {
|
||
|
|
// Currently iterating over an inner Iterable?
|
||
|
|
if (this.inner) {
|
||
|
|
const result = this.inner.next();
|
||
|
|
// If not done, return result
|
||
|
|
if (!result.done) {
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
// Else stop iterating inner Iterable
|
||
|
|
this.inner = undefined;
|
||
|
|
}
|
||
|
|
// Continue with next outer element
|
||
|
|
const { value, done } = this.outer.next();
|
||
|
|
// If the value is iterable, start iterating over it
|
||
|
|
if (utils_1.isIterable(value)) {
|
||
|
|
this.inner = value[Symbol.iterator]();
|
||
|
|
return this.next();
|
||
|
|
}
|
||
|
|
return { value, done };
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exports.FlattenIterator = FlattenIterator;
|
||
|
|
//# sourceMappingURL=flatten.js.map
|