blue-iterate/dist/map.js

A collection of streams that work well with promises (through, map, reduce). Through2 with promise support

"use strict";
var __asyncValues = (this && this.__asyncValues) || function (o) {
    if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
    var m = o[Symbol.asyncIterator];
    return m ? m.call(o) : typeof __values === "function" ? __values(o) : o[Symbol.iterator]();
};
var __await = (this && this.__await) || function (v) { return this instanceof __await ? (this.v = v, this) : new __await(v); }
var __asyncGenerator = (this && this.__asyncGenerator) || function (thisArg, _arguments, generator) {
    if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
    var g = generator.apply(thisArg, _arguments || []), i, q = [];
    return i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i;
    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }
    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }
    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r);  }
    function fulfill(value) { resume("next", value); }
    function reject(value) { resume("throw", value); }
    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }
};
Object.defineProperty(exports, "__esModule", { value: true });
function _map(func, iterable) {
    return __asyncGenerator(this, arguments, function* _map_1() {
        try {
            for (var iterable_1 = __asyncValues(iterable), iterable_1_1; iterable_1_1 = yield __await(iterable_1.next()), !iterable_1_1.done;) {
                const val = yield __await(iterable_1_1.value);
                yield yield __await(func(val));
            }
        }
        catch (e_1_1) { e_1 = { error: e_1_1 }; }
        finally {
            try {
                if (iterable_1_1 && !iterable_1_1.done && (_a = iterable_1.return)) yield __await(_a.call(iterable_1));
            }
            finally { if (e_1) throw e_1.error; }
        }
        var e_1, _a;
    });
}
function map(func, iterable) {
    if (iterable === undefined) {
        return curriedIterable => _map(func, curriedIterable);
    }
    return _map(func, iterable);
}
exports.map = map;