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Issue 1099203004: Revert of Protect the emptiness of Array prototype elements with a PropertyCell. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 8 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Flags: --allow-natives-syntax
6
7 function f1(a, i) {
8 return a[i] + 0.5;
9 }
10
11 var other_realm = Realm.create();
12 var arr = [,0.0,2.5];
13 assertEquals(0.5, f1(arr, 1));
14 assertEquals(0.5, f1(arr, 1));
15 %OptimizeFunctionOnNextCall(f1);
16 assertEquals(0.5, f1(arr, 1));
17
18 Realm.shared = arr.__proto__;
19
20 // The call syntax is useful to make sure the native context is that of the
21 // other realm.
22 Realm.eval(other_realm, "Array.prototype.push.call(Realm.shared, 1);");
23 assertEquals(1.5, f1(arr, 0));
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