graph-builder/dist/collect/Iterators.js

A graph builder library for modeling abstract graph structures.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var Iterators;
(function (Iterators) {
    /**
    * Returns a view containing the result of applying `function` to each element of
    * `fromIterator`.
    *
    * <p>The returned iterator supports `remove()` if `fromIterator` does. After a
    * successful `remove()` call, `fromIterator` no longer contains the corresponding
    * element.
    */
    Iterators.transform = (fromIterator, mapper) => ({
        next: () => {
            const result = fromIterator.next();
            return Object.assign({}, result, { value: result.value !== undefined ? mapper(result.value) : result.value });
        }
    });
    Iterators.concat = (a, b) => ({
        next: () => {
            const result = a.next();
            return (result.done) ? b.next() : result;
        }
    });
})(Iterators = exports.Iterators || (exports.Iterators = {}));
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