source: imaps-frontend/node_modules/es-abstract/2019/AddEntriesFromIterable.js@ 79a0317

'use strict';

var inspect = require('object-inspect');

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

var Call = require('./Call');
var Get = require('./Get');
var GetIterator = require('./GetIterator');
var IsCallable = require('./IsCallable');
var IteratorClose = require('./IteratorClose');
var IteratorStep = require('./IteratorStep');
var IteratorValue = require('./IteratorValue');
var ThrowCompletion = require('./ThrowCompletion');

var isObject = require('../helpers/isObject');

// https://262.ecma-international.org/10.0/#sec-add-entries-from-iterable

module.exports = function AddEntriesFromIterable(target, iterable, adder) {
        if (!IsCallable(adder)) {
                throw new $TypeError('Assertion failed: `adder` is not callable');
        }
        if (iterable == null) {
                throw new $TypeError('Assertion failed: `iterable` is present, and not nullish');
        }
        var iteratorRecord = GetIterator(iterable);
        while (true) { // eslint-disable-line no-constant-condition
                var next = IteratorStep(iteratorRecord);
                if (!next) {
                        return target;
                }
                var nextItem = IteratorValue(next);
                if (!isObject(nextItem)) {
                        var error = ThrowCompletion(new $TypeError('iterator next must return an Object, got ' + inspect(nextItem)));
                        return IteratorClose(iteratorRecord, error);
                }
                try {
                        var k = Get(nextItem, '0');
                        var v = Get(nextItem, '1');
                        Call(adder, target, [k, v]);
                } catch (e) {
                        return IteratorClose(iteratorRecord, ThrowCompletion(e));
                }
        }
};