2e191cee8a
If we use ScopeIterator inside a debug-evaluate call, we may iterate over a debug-evaluate context that we created for the debug-evaluate call. This may trigger assertions. The solution is to have the ScopeIterator hide debug-evaluate contexts by unwrapping it if it comes across any. R=cbruni@chromium.org BUG=chromium:599662 LOG=N Review URL: https://codereview.chromium.org/1859033002 Cr-Commit-Position: refs/heads/master@{#35258}
50 lines
1.2 KiB
JavaScript
50 lines
1.2 KiB
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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Debug = debug.Debug;
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ScopeType = debug.ScopeType;
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var exception = null;
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var nested = false;
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function bar() {
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let a = 1;
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(function foo() {
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let b = a;
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with (new Proxy({}, {})) {
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debugger;
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}
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})();
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}
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function checkScopes(scopes, expectation) {
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assertEquals(scopes.map(s => s.scopeType()), expectation);
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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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if (!nested) {
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nested = true;
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checkScopes(exec_state.frame(0).allScopes(),
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[ ScopeType.With, ScopeType.Local, ScopeType.Closure,
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ScopeType.Script, ScopeType.Global ]);
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exec_state.frame(0).evaluate("debugger;");
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} else {
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checkScopes(exec_state.frame(0).allScopes(),
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[ ScopeType.With, ScopeType.Closure,
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ScopeType.Script, ScopeType.Global ]);
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}
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} catch (e) {
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exception = e;
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print(e + e.stack);
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}
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}
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Debug.setListener(listener);
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bar();
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Debug.setListener(null);
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assertNull(exception);
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