54245bd6b2
If scripts is paused in class constructor before super() call then any attempt to evaluate something like this.* on top frame will produce crash. BUG=chromium:614019 R=yangguo@chromium.org Review-Url: https://codereview.chromium.org/2013223003 Cr-Commit-Position: refs/heads/master@{#36625}
40 lines
855 B
JavaScript
40 lines
855 B
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --expose-debug-as debug
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// Test that debug-evaluate doesn't crash when this is used before super() call
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// in constructor.
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Debug = debug.Debug
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var result;
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function listener(event, exec_state, event_data, data)
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{
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try {
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if (event == Debug.DebugEvent.Break) {
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result = exec_state.frame(0).evaluate("this.a").value();
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}
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} catch (e) {
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result = e.message;
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}
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}
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Debug.setListener(listener);
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class A { constructor () { this.a = 239; } }
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class B extends A {
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constructor () {
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debugger;
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assertEquals("Cannot read property 'a' of undefined", result);
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super();
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debugger;
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assertEquals(239, result);
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}
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}
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new B();
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Debug.setListener(null);
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