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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --expose-debug-as debug
// Tests stepping into through Array.prototype.forEach callbacks.
Debug = debug.Debug
var exception = null;
var break_count = 0;
var expected_breaks = -1;
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Break) {
assertTrue(exec_state.frameCount() != 0, "FAIL: Empty stack trace");
if (!break_count) {
// Count number of expected breakpoints in this source file.
var source_text = exec_state.frame(0).func().script().source();
expected_breaks = source_text.match(/\/\/\s*Break\s+\d+\./g).length;
print("Expected breaks: " + expected_breaks);
}
var source = exec_state.frame(0).sourceLineText();
print("paused at: " + source);
assertTrue(source.indexOf("// Break " + break_count + ".") > 0,
"Unexpected pause at: " + source + "\n" +
"Expected: // Break " + break_count + ".");
++break_count;
if (break_count !== expected_breaks) {
exec_state.prepareStep(Debug.StepAction.StepIn);
}
}
} catch(e) {
exception = e;
print(e, e.stack);
}
};
Debug.setListener(listener);
var bound_callback = callback.bind(null);
debugger; // Break 0.
[1,2].forEach(callback); // Break 1.
[3,4].forEach(bound_callback); // Break 6.
function callback(x) {
return x; // Break 2. // Break 4. // Break 7. // Break 9.
} // Break 3. // Break 5. // Break 8. // Break 10.
assertNull(exception); // Break 11.
assertEquals(expected_breaks, break_count);
Debug.setListener(null);
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