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Issue 1316333002: [strong] weak classes can't inherit from strong ones (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: minor comment reorder Created 5 years, 3 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: --strong-mode --allow-natives-syntax
6
7 function getStrongClass() {
8 "use strong";
9 return (class {});
10 }
11
12 function weakClass() {
13 "use strict";
14 class Weak extends getStrongClass() {}
15 }
16
17 function strongClass() {
18 "use strong";
19 class Strong extends getStrongClass() {}
20 }
21
22 assertThrows(weakClass, TypeError);
23 %OptimizeFunctionOnNextCall(weakClass);
24 assertThrows(weakClass, TypeError);
25
26 assertDoesNotThrow(strongClass);
27 %OptimizeFunctionOnNextCall(strongClass);
28 assertDoesNotThrow(strongClass);
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