1 files changed, 52 insertions, 0 deletions
diff --git a/node_modules/es-abstract/2019/AddEntriesFromIterable.js b/node_modules/es-abstract/2019/AddEntriesFromIterable.js
new file mode 100644
index 000000000..5aed44753
--- /dev/null
+++ b/node_modules/es-abstract/2019/AddEntriesFromIterable.js
@@ -0,0 +1,52 @@
+'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; }
+			);
+		}
+	}
+};