66 lines
1.9 KiB
JavaScript
66 lines
1.9 KiB
JavaScript
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// Copyright 2015 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 --noalways-opt
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// Tests stepping into through Promises.
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Debug = debug.Debug
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var exception = null;
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var break_count = 0;
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var expected_breaks = -1;
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function listener(event, exec_state, event_data, data) {
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try {
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if (event == Debug.DebugEvent.Break) {
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assertTrue(exec_state.frameCount() != 0, "FAIL: Empty stack trace");
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if (!break_count) {
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// Count number of expected breakpoints in this source file.
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var source_text = exec_state.frame(0).func().script().source();
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expected_breaks = source_text.match(/\/\/\s*Break\s+\d+\./g).length;
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print("Expected breaks: " + expected_breaks);
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}
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var source = exec_state.frame(0).sourceLineText();
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print("paused at: " + source);
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assertTrue(source.indexOf("// Break " + break_count + ".") > 0,
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"Unexpected pause at: " + source + "\n" +
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"Expected: // Break " + break_count + ".");
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++break_count;
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if (break_count !== expected_breaks) {
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exec_state.prepareStep(Debug.StepAction.StepIn, 1);
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}
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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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Promise.resolve(42)
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.then(
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function f0() {
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debugger; // Break 0.
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} // Break 1.
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)
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.then(callback)
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.then(callback.bind(null))
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.then(Object)
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.then(callback.bind(null).bind(null))
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.then(finalize)
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.catch(function(err) {
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%AbortJS("FAIL: " + err);
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});
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function callback(x) {
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return x; // Break 2. // Break 4. // Break 6.
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} // Break 3. // Break 5. // Break 7.
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function finalize() {
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assertNull(exception); // Break 8.
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assertEquals(expected_breaks, break_count);
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Debug.setListener(null);
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}
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