[0c6b92a] | 1 | 'use strict';
|
---|
| 2 |
|
---|
| 3 | var $TypeError = require('es-errors/type');
|
---|
| 4 |
|
---|
| 5 | var Get = require('es-abstract/2024/Get');
|
---|
| 6 | var GetIterator = require('es-abstract/2024/GetIterator');
|
---|
| 7 | var GetIteratorFlattenable = require('../aos/GetIteratorFlattenable');
|
---|
| 8 | var GetOptionsObject = require('../aos/GetOptionsObject');
|
---|
| 9 | var IfAbruptCloseIterators = require('../aos/IfAbruptCloseIterators');
|
---|
| 10 | var IteratorClose = require('es-abstract/2024/IteratorClose');
|
---|
| 11 | var IteratorStepValue = require('es-abstract/2024/IteratorStepValue');
|
---|
| 12 | var IteratorZip = require('../aos/IteratorZip');
|
---|
| 13 | var NormalCompletion = require('es-abstract/2024/NormalCompletion');
|
---|
| 14 | var ThrowCompletion = require('es-abstract/2024/ThrowCompletion');
|
---|
| 15 | var Type = require('es-abstract/2024/Type');
|
---|
| 16 |
|
---|
| 17 | module.exports = function zip(iterables) {
|
---|
| 18 | if (this instanceof zip) {
|
---|
| 19 | throw new $TypeError('`Iterator.zip` is not a constructor');
|
---|
| 20 | }
|
---|
| 21 |
|
---|
| 22 | if (Type(iterables) !== 'Object') {
|
---|
| 23 | throw new $TypeError('`iterables` must be an Object'); // step 1
|
---|
| 24 | }
|
---|
| 25 |
|
---|
| 26 | var options = GetOptionsObject(arguments.length > 1 ? arguments[1] : undefined); // step 2
|
---|
| 27 |
|
---|
| 28 | var mode = Get(options, 'mode'); // step 3
|
---|
| 29 |
|
---|
| 30 | if (typeof mode === 'undefined') {
|
---|
| 31 | mode = 'shortest'; // step 4
|
---|
| 32 | }
|
---|
| 33 |
|
---|
| 34 | if (mode !== 'shortest' && mode !== 'longest' && mode !== 'strict') {
|
---|
| 35 | throw new $TypeError('`mode` must be one of "shortest", "longest", or "strict"'); // step 5
|
---|
| 36 | }
|
---|
| 37 |
|
---|
| 38 | var paddingOption; // step 6
|
---|
| 39 |
|
---|
| 40 | if (mode === 'longest') {
|
---|
| 41 | paddingOption = Get(options, 'padding'); // step 7
|
---|
| 42 | if (typeof paddingOption !== 'undefined' && Type(paddingOption) !== 'Object') {
|
---|
| 43 | throw new $TypeError('`padding` option must be an Object'); // step 7.1
|
---|
| 44 | }
|
---|
| 45 | }
|
---|
| 46 |
|
---|
| 47 | var iters = []; // step 8
|
---|
| 48 |
|
---|
| 49 | var padding = []; // step 9
|
---|
| 50 |
|
---|
| 51 | var inputIter = GetIterator(iterables, 'SYNC'); // step 10
|
---|
| 52 |
|
---|
| 53 | var next; // = 'NOT-STARTED'; // step 11
|
---|
| 54 |
|
---|
| 55 | while (!inputIter['[[Done]]']) { // step 12
|
---|
| 56 | try {
|
---|
| 57 | next = IteratorStepValue(inputIter); // step 12.a
|
---|
| 58 | } catch (e) {
|
---|
| 59 | IfAbruptCloseIterators(ThrowCompletion(e), iters); // step 12.b
|
---|
| 60 | }
|
---|
| 61 |
|
---|
| 62 | if (!inputIter['[[Done]]']) { // step 12.c
|
---|
| 63 | var iter;
|
---|
| 64 | try {
|
---|
| 65 | iter = GetIteratorFlattenable(next, 'REJECT-STRINGS'); // step 12.c.i
|
---|
| 66 | } catch (e) {
|
---|
| 67 | IfAbruptCloseIterators(ThrowCompletion(e), [].concat(inputIter, iters)); // step 12.c.ii
|
---|
| 68 | }
|
---|
| 69 | iters[iters.length] = iter; // step 12.c.iii
|
---|
| 70 | }
|
---|
| 71 | }
|
---|
| 72 |
|
---|
| 73 | var iterCount = iters.length; // step 13
|
---|
| 74 |
|
---|
| 75 | if (mode === 'longest') { // step 14
|
---|
| 76 | if (typeof paddingOption === 'undefined') { // step 14.a
|
---|
| 77 | for (var i = 0; i < iterCount; i++) { // step 14.a.i
|
---|
| 78 | padding[padding.length] = void undefined; // step 14.a.i.1
|
---|
| 79 | }
|
---|
| 80 | } else { // step 14.b
|
---|
| 81 | var paddingIter;
|
---|
| 82 | try {
|
---|
| 83 | paddingIter = GetIterator(paddingOption, 'SYNC'); // step 14.b.i
|
---|
| 84 | } catch (e) {
|
---|
| 85 | IfAbruptCloseIterators(ThrowCompletion(e), iters); // step 14.b.ii
|
---|
| 86 | }
|
---|
| 87 | var usingIterator = true; // step 14.b.iii
|
---|
| 88 | for (var j = 0; j < iterCount; j++) { // step 14.b.iv
|
---|
| 89 | if (usingIterator) { // step 14.b.iv.1
|
---|
| 90 | try {
|
---|
| 91 | next = IteratorStepValue(paddingIter); // step 14.b.iv.1.a
|
---|
| 92 | } catch (e) {
|
---|
| 93 | IfAbruptCloseIterators(ThrowCompletion(e), iters); // step 14.b.iv.1.b
|
---|
| 94 | }
|
---|
| 95 | if (paddingIter['[[Done]]']) { // step 14.b.iv.1.c
|
---|
| 96 | usingIterator = false; // step 14.b.iv.1.c.i
|
---|
| 97 | } else { // step 14.b.iv.1.d
|
---|
| 98 | padding[padding.length] = next; // step 14.b.iv.1.d.i
|
---|
| 99 | }
|
---|
| 100 | }
|
---|
| 101 | if (!usingIterator) {
|
---|
| 102 | padding[padding.length] = void undefined; // step 14.b.iv.2
|
---|
| 103 | }
|
---|
| 104 | }
|
---|
| 105 |
|
---|
| 106 | if (usingIterator) { // step 14.b.v
|
---|
| 107 | try {
|
---|
| 108 | IteratorClose(paddingIter, NormalCompletion(undefined)); // step 14.b.v.1
|
---|
| 109 | } catch (e) {
|
---|
| 110 | IfAbruptCloseIterators(ThrowCompletion(e), iters); // step 14.b.v.2
|
---|
| 111 | }
|
---|
| 112 | }
|
---|
| 113 | }
|
---|
| 114 | }
|
---|
| 115 |
|
---|
| 116 | // eslint-disable-next-line no-sequences
|
---|
| 117 | var finishResults = (0, function (results) { // step 15
|
---|
| 118 | return results; // step 15.1
|
---|
| 119 | });
|
---|
| 120 |
|
---|
| 121 | return IteratorZip(iters, mode, padding, finishResults); // step 16
|
---|
| 122 | };
|
---|