v8/test/debugger/debug/es6/debug-stepout-tailcalls.js
jgruber 60d60fd716 [debugger] Migrate more debugger tests to inspector
This moves all tests currently working with the inspector debugger wrapper to
test/debugger.

BUG=v8:5530

Review-Url: https://codereview.chromium.org/2480223002
Cr-Commit-Position: refs/heads/master@{#40824}
2016-11-08 10:39:08 +00:00

46 lines
957 B
JavaScript

// 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.
// Flags: --harmony-tailcalls
"use strict";
var Debug = debug.Debug
var exception = null;
var breaks = 0;
function f(x) {
if (x > 0) {
return f(x - 1); // Tail call
}
debugger; // Break 0
}
function g(x) {
return f(x); // Tail call
}
function h(x) {
g(x); // Not tail call
} // Break 1
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Break) return;
try {
assertTrue(event_data.sourceLineText().indexOf(`Break ${breaks++}`) > 0);
exec_state.prepareStep(Debug.StepAction.StepOut);
} catch (e) {
exception = e;
};
};
Debug.setListener(listener);
h(3);
Debug.setListener(null); // Break 2
assertNull(exception);
assertEquals(3, breaks);