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6cdd310275
PR-URL: https://github.com/nodejs/node/pull/38990 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Robert Nagy <ronagy@icloud.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
// Copyright 2018 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: --allow-natives-syntax
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Debug = debug.Debug;
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function test(i) {
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if (i == 3) {
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return (function* gen() { yield test(i - 1); })().next().value;
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} else if (i > 1) {
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return test(i - 1);
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} else {
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debugger;
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return 5;
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}
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}
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let patch = null, exception = null;
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Debug.setListener(listener);
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patch = ['return 5', 'return 3'];
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assertEquals(5, test(2)); // generator on stack
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assertEquals(exception,
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'LiveEdit failed: BLOCKED_BY_ACTIVE_FUNCTION');
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patch = ['return 3', 'return -1'];
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assertEquals(5, test(5)); // there is running generator
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assertEquals(exception,
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'LiveEdit failed: BLOCKED_BY_ACTIVE_FUNCTION');
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Debug.setListener(null);
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function listener(event) {
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if (event != Debug.DebugEvent.Break || !patch) return;
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try {
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%LiveEditPatchScript(test,
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Debug.scriptSource(test).replace(patch[0], patch[1]));
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} catch (e) {
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exception = e;
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}
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patch = null;
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}
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