v8/test/debugger/debug/es6/debug-stepnext-generators.js

49 lines
1.3 KiB
JavaScript
Raw Normal View History

// Copyright 2016 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.
Debug = debug.Debug
var exception = null;
var breaks = 0;
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Break) return;
try {
var source = exec_state.frame(0).sourceLineText();
assertTrue(RegExp(`B${breaks++}`).test(source));
if (/stop/.test(source)) return;
if (/step out/.test(source)) {
exec_state.prepareStep(Debug.StepAction.StepOut);
} else if (/step in/.test(source)) {
exec_state.prepareStep(Debug.StepAction.StepIn);
} else {
exec_state.prepareStep(Debug.StepAction.StepNext);
}
} catch (e) {
print(e, e.stack);
exception = e;
}
}
Debug.setListener(listener);
function * g() {
debugger; // B0
yield 1; // B1
yield 2; // B2 step out
yield 3; // B5
yield 4; // B6 step out
return 2 * (yield 5);
}
var i = g();
assertEquals(1, i.next().value);
assertEquals(2, i.next().value); // B3
assertEquals(3, i.next().value); // B4 step in
assertEquals(4, i.next().value); // B7
assertEquals(5, i.next().value); // B8
assertEquals(6, i.next(3).value); // B9 stop
assertNull(exception);
assertEquals(10, breaks);