source: imaps-frontend/node_modules/es-iterator-helpers/Iterator.zip/implementation.js@ 0c6b92a

'use strict';

var $TypeError = require('es-errors/type');

var Get = require('es-abstract/2024/Get');
var GetIterator = require('es-abstract/2024/GetIterator');
var GetIteratorFlattenable = require('../aos/GetIteratorFlattenable');
var GetOptionsObject = require('../aos/GetOptionsObject');
var IfAbruptCloseIterators = require('../aos/IfAbruptCloseIterators');
var IteratorClose = require('es-abstract/2024/IteratorClose');
var IteratorStepValue = require('es-abstract/2024/IteratorStepValue');
var IteratorZip = require('../aos/IteratorZip');
var NormalCompletion = require('es-abstract/2024/NormalCompletion');
var ThrowCompletion = require('es-abstract/2024/ThrowCompletion');
var Type = require('es-abstract/2024/Type');

module.exports = function zip(iterables) {
        if (this instanceof zip) {
                throw new $TypeError('`Iterator.zip` is not a constructor');
        }

        if (Type(iterables) !== 'Object') {
                throw new $TypeError('`iterables` must be an Object'); // step 1
        }

        var options = GetOptionsObject(arguments.length > 1 ? arguments[1] : undefined); // step 2

        var mode = Get(options, 'mode'); // step 3

        if (typeof mode === 'undefined') {
                mode = 'shortest'; // step 4
        }

        if (mode !== 'shortest' && mode !== 'longest' && mode !== 'strict') {
                throw new $TypeError('`mode` must be one of "shortest", "longest", or "strict"'); // step 5
        }

        var paddingOption; // step 6

        if (mode === 'longest') {
                paddingOption = Get(options, 'padding'); // step 7
                if (typeof paddingOption !== 'undefined' && Type(paddingOption) !== 'Object') {
                        throw new $TypeError('`padding` option must be an Object'); // step 7.1
                }
        }

        var iters = []; // step 8

        var padding = []; // step 9

        var inputIter = GetIterator(iterables, 'SYNC'); // step 10

        var next; // = 'NOT-STARTED'; // step 11

        while (!inputIter['[[Done]]']) { // step 12
                try {
                        next = IteratorStepValue(inputIter); // step 12.a
                } catch (e) {
                        IfAbruptCloseIterators(ThrowCompletion(e), iters); // step 12.b
                }

                if (!inputIter['[[Done]]']) { // step 12.c
                        var iter;
                        try {
                                iter = GetIteratorFlattenable(next, 'REJECT-STRINGS'); // step 12.c.i
                        } catch (e) {
                                IfAbruptCloseIterators(ThrowCompletion(e), [].concat(inputIter, iters)); // step 12.c.ii
                        }
                        iters[iters.length] = iter; // step 12.c.iii
                }
        }

        var iterCount = iters.length; // step 13

        if (mode === 'longest') { // step 14
                if (typeof paddingOption === 'undefined') { // step 14.a
                        for (var i = 0; i < iterCount; i++) { // step 14.a.i
                                padding[padding.length] = void undefined; // step 14.a.i.1
                        }
                } else { // step 14.b
                        var paddingIter;
                        try {
                                paddingIter = GetIterator(paddingOption, 'SYNC'); // step 14.b.i
                        } catch (e) {
                                IfAbruptCloseIterators(ThrowCompletion(e), iters); // step 14.b.ii
                        }
                        var usingIterator = true; // step 14.b.iii
                        for (var j = 0; j < iterCount; j++) { // step 14.b.iv
                                if (usingIterator) { // step 14.b.iv.1
                                        try {
                                                next = IteratorStepValue(paddingIter); // step 14.b.iv.1.a
                                        } catch (e) {
                                                IfAbruptCloseIterators(ThrowCompletion(e), iters); // step 14.b.iv.1.b
                                        }
                                        if (paddingIter['[[Done]]']) { // step 14.b.iv.1.c
                                                usingIterator = false; // step 14.b.iv.1.c.i
                                        } else { // step 14.b.iv.1.d
                                                padding[padding.length] = next; // step 14.b.iv.1.d.i
                                        }
                                }
                                if (!usingIterator) {
                                        padding[padding.length] = void undefined; // step 14.b.iv.2
                                }
                        }

                        if (usingIterator) { // step 14.b.v
                                try {
                                        IteratorClose(paddingIter, NormalCompletion(undefined)); // step 14.b.v.1
                                } catch (e) {
                                        IfAbruptCloseIterators(ThrowCompletion(e), iters); // step 14.b.v.2
                                }
                        }
                }
        }

        // eslint-disable-next-line no-sequences
        var finishResults = (0, function (results) { // step 15
                return results; // step 15.1
        });

        return IteratorZip(iters, mode, padding, finishResults); // step 16
};