v8/test/mjsunit/ignition/debug-break-on-stack.js
2016-02-23 13:11:27 +00:00

49 lines
898 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: --expose-debug-as debug
var Debug = debug.Debug;
var break_count = 0;
var exception = null;
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Break) return;
try {
break_count++;
var line = exec_state.frame(0).sourceLineText();
print(line);
assertTrue(line.indexOf(`B${break_count}`) > 0);
} catch (e) {
exception = e;
}
}
function g() {
setbreaks();
throw 1; // B1
}
function f() {
try {
g();
} catch (e) {}
return 2; // B2
}
function setbreaks() {
Debug.setListener(listener);
Debug.setBreakPoint(g, 2, 0);
Debug.setBreakPoint(f, 4, 0);
}
f();
assertEquals(2, break_count);
assertNull(exception);
Debug.setListener(null);