geninq/dist/functions/order-by.js

A JavaScript version of the Linq library for Generators

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
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 });
const utils_1 = require("./utils");
require("./select");
require("./array");
const safe_type_1 = require("@paulpopat/safe-type");
function BuildArguments(args) {
    const default_key_selector = (i) => i;
    const default_comparitor = (a, b) => {
        (0, safe_type_1.Assert)((0, safe_type_1.IsUnion)(safe_type_1.IsString, safe_type_1.IsNumber), a);
        (0, safe_type_1.Assert)((0, safe_type_1.IsUnion)(safe_type_1.IsString, safe_type_1.IsNumber), b);
        return a > b;
    };
    if (args.length === 0) {
        return {
            key_selector: default_key_selector,
            comparitor: default_comparitor,
            descending: false,
        };
    }
    return (0, safe_type_1.PatternMatch)((0, safe_type_1.IsTuple)(safe_type_1.IsString), (0, safe_type_1.IsTuple)(safe_type_1.IsFunction, safe_type_1.IsString), (0, safe_type_1.IsTuple)(safe_type_1.IsFunction, safe_type_1.IsFunction, safe_type_1.IsString), (0, safe_type_1.IsTuple)(safe_type_1.IsFunction), (0, safe_type_1.IsTuple)(safe_type_1.IsFunction, safe_type_1.IsFunction))(([descending]) => ({
        key_selector: default_key_selector,
        comparitor: default_comparitor,
        descending: descending != null,
    }), ([key_selector, descending]) => ({
        key_selector,
        comparitor: default_comparitor,
        descending: descending != null,
    }), ([key_selector, comparitor, descending]) => ({
        key_selector,
        comparitor,
        descending: descending != null,
    }), ([key_selector]) => ({
        key_selector,
        comparitor: default_comparitor,
        descending: false,
    }), ([key_selector, comparitor]) => ({
        key_selector,
        comparitor,
        descending: false,
    }))([...args]);
}
(0, utils_1.Build)("order_by", function* () {
    const m = BuildArguments(arguments);
    let new_subject = this.select((i) => [m.key_selector(i), i])
        .array()
        .sort(([a], [b]) => (m.comparitor(a, b) ? 1 : -1));
    if (m.descending) {
        new_subject = new_subject.reverse();
    }
    for (const item of new_subject) {
        yield item[1];
    }
}, function () {
    return __asyncGenerator(this, arguments, function* () {
        const m = BuildArguments(arguments);
        let new_subject = (yield __await(this.select((i) => __awaiter(this, void 0, void 0, function* () { return [yield m.key_selector(i), i]; })).array())).sort(([a], [b]) => (m.comparitor(a, b) ? 1 : -1));
        if (m.descending) {
            new_subject = new_subject.reverse();
        }
        for (const item of new_subject) {
            yield yield __await(item[1]);
        }
    });
});