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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: --allow-natives-syntax --expose-debug-as debug
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 + ".");
if (source.indexOf("StepOver.") !== -1) {
exec_state.prepareStep(Debug.StepAction.StepNext);
} else {
exec_state.prepareStep(Debug.StepAction.StepIn);
}
++break_count;
}
} catch (e) {
exception = e;
print(e, e.stack);
}
};
Debug.setListener(listener);
Promise.resolve(42)
.then(promise1)
.then(Object) // Should skip stepping into native.
.then(Boolean) // Should skip stepping into native.
.then(promise2)
.catch(promise3)
.then(promise4)
.catch(function(e) {
%AbortJS("FAIL: uncaught exception " + e);
});
function promise1() {
debugger; // Break 0.
return exception || 1; // Break 1.
} // Break 2.
function promise2() {
throw new Error; // Break 3.
}
function promise3() {
return break_count; // Break 4.
} // Break 5.
function promise4() {
finalize(); // Break 6. StepOver.
return 0; // Break 7.
} // Break 8. StepOver.
function finalize() {
Promise.resolve().then(function() {
if (expected_breaks !== break_count) {
%AbortJS("FAIL: expected <" + expected_breaks + "> breaks instead of <" +
break_count + ">");
}
if (exception !== null) {
%AbortJS("FAIL: exception: " + exception);
}
});
}
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