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deps/v8/test/mjsunit/es6/rest-params-lazy-parsing.js

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+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+function variadic(co, ...values) {
+  var sum = 0;
+  while (values.length) {
+    sum += co * values.pop();
+  }
+  return sum;
+}
+
+var arrowVariadic = (co, ...values) => {
+  var sum = 0;
+  while (values.length) {
+    sum += co * values.pop();
+  }
+  return sum;
+}
+
+assertEquals(1, variadic.length);
+assertEquals(1, arrowVariadic.length);
+
+assertEquals(90, variadic(2, 1, 2, 3, 4, 5, 6, 7, 8, 9));
+assertEquals(74, variadic(2, 1, 2, 3, 4, 5, 6, 7, 9));
+assertEquals(110, variadic(2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
+
+assertEquals(90, arrowVariadic(2, 1, 2, 3, 4, 5, 6, 7, 8, 9));
+assertEquals(74, arrowVariadic(2, 1, 2, 3, 4, 5, 6, 7, 9));
+assertEquals(110, arrowVariadic(2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10));