Upload Kmake

deps/v8/test/mjsunit/array-join-nonarray-length-getter-side-effects.js

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+// Copyright 2018 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 Throws() {
+  function TestError() {}
+
+  let callCount = 0;
+  const a = {
+    0: 1,
+    1: 2,
+    get length() {
+      callCount++;
+      throw new TestError();
+    }
+  };
+  assertThrows(() => Array.prototype.join.call(a), TestError);
+  assertSame(1, callCount);
+
+  // Verifies cycle detection still works properly after thrown error.
+  Object.defineProperty(a, 'length', {
+    get() {
+      callCount++;
+      return 2;
+    }
+  });
+  assertSame('1,2', Array.prototype.join.call(a));
+  assertSame(2, callCount);
+})();