416e423fdb
Stepping in a generator now behaves similar to stepping inside an async function. Stepping in or next at a yield expression will result in a break inside the same generator when we return to the generator. Behavior of step-out does not change. R=jgruber@chromium.org, neis@chromium.org BUG=chromium:496865 Review-Url: https://codereview.chromium.org/2519853002 Cr-Commit-Position: refs/heads/master@{#41132}
49 lines
1.3 KiB
JavaScript
49 lines
1.3 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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Debug = debug.Debug
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var exception = null;
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var breaks = 0;
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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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var source = exec_state.frame(0).sourceLineText();
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assertTrue(RegExp(`B${breaks++}`).test(source));
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if (/stop/.test(source)) return;
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if (/step out/.test(source)) {
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exec_state.prepareStep(Debug.StepAction.StepOut);
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} else if (/step in/.test(source)) {
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exec_state.prepareStep(Debug.StepAction.StepIn);
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} else {
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exec_state.prepareStep(Debug.StepAction.StepNext);
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}
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} catch (e) {
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print(e, e.stack);
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exception = e;
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}
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}
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Debug.setListener(listener);
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function * g() {
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debugger; // B0
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yield 1; // B1
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yield 2; // B2 step out
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yield 3; // B5
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yield 4; // B6 step out
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return 2 * (yield 5);
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}
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var i = g();
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assertEquals(1, i.next().value);
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assertEquals(2, i.next().value); // B3
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assertEquals(3, i.next().value); // B4 step in
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assertEquals(4, i.next().value); // B7
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assertEquals(5, i.next().value); // B8
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assertEquals(6, i.next(3).value); // B9 stop
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assertNull(exception);
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assertEquals(10, breaks);
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