53 lines
1.1 KiB
JavaScript
53 lines
1.1 KiB
JavaScript
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// 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 --allow-natives-syntax
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Debug = debug.Debug
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var exception = null;
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function f() {
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let a = 0;
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function g() {
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let a = 1;
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{
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let a = 2;
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debugger; // Breakpoint.
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if (a !== 3) {
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// We cannot change stack locals in optimized frames.
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assertEquals(2, a);
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assertOptimized(g);
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}
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}
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assertEquals(1, a);
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}
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g.call(1);
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if (a !== 4) {
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// We cannot change stack locals in optimized frames.
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assertEquals(0, a);
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assertOptimized(f);
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}
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}
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function listener(event, exec_state, event_data, data) {
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if (event != Debug.DebugEvent.Break) return;
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try {
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exec_state.frame(0).evaluate("a = 3");
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exec_state.frame(1).evaluate("a = 4");
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assertThrows(() => exec_state.frame(0).evaluate("this = 2"));
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} catch (e) {
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exception = e;
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print("Caught something. " + e + " " + e.stack);
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};
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};
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Debug.setListener(listener);
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f();
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Debug.setListener(null);
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assertNull(exception);
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