09de9969cc
The switch statement itself is part of the switch block. However, the source position of the statement is outside of the block. This leads to confusion for the debugger, if the switch block pushes a block context: the current context is a block context, but the scope analysis based on the current source position tells the debugger that we should be outside the scope, so we should have the function context. R=marja@chromium.org BUG=v8:6085 Review-Url: https://codereview.chromium.org/2744213003 Cr-Commit-Position: refs/heads/master@{#43744}
50 lines
1.2 KiB
JavaScript
50 lines
1.2 KiB
JavaScript
// Copyright 2017 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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function* serialize() {
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debugger;
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switch (0) {
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case 0:
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let x = 1;
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return x; // Check scopes
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}
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}
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let exception = null;
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let step_count = 0;
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let scopes_checked = false;
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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 (exec_state.frame().sourceLineText().includes("Check scopes")) {
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let expected = [ debug.ScopeType.Block,
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debug.ScopeType.Local,
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debug.ScopeType.Script,
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debug.ScopeType.Global ];
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for (let i = 0; i < exec_state.frame().scopeCount(); i++) {
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assertEquals(expected[i], exec_state.frame().scope(i).scopeType());
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}
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scopes_checked = true;
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}
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if (step_count++ < 3) exec_state.prepareStep(Debug.StepAction.StepNext);
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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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let Debug = debug.Debug;
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Debug.setListener(listener);
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let gen = serialize();
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gen.next();
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Debug.setListener(null);
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assertNull(exception);
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assertEquals(4, step_count);
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assertTrue(scopes_checked);
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