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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
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+'use strict';
+
+var inspect = require('object-inspect');
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+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 Type = require('./Type');
+
+// https://tc39.es/ecma262/#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 (Type(nextItem) !== 'Object') {
+ var error = new $TypeError('iterator next must return an Object, got ' + inspect(nextItem));
+ return IteratorClose(
+ iteratorRecord,
+ function () { throw error; } // eslint-disable-line no-loop-func
+ );
+ }
+ try {
+ var k = Get(nextItem, '0');
+ var v = Get(nextItem, '1');
+ Call(adder, target, [k, v]);
+ } catch (e) {
+ return IteratorClose(
+ iteratorRecord,
+ function () { throw e; }
+ );
+ }
+ }
+};