53 lines
1.2 KiB
JavaScript
53 lines
1.2 KiB
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 --allow-natives-syntax
|
||
|
|
|
||
|
|
Debug = debug.Debug
|
||
|
|
|
||
|
|
var exception = null;
|
||
|
|
var frame_depth = 10;
|
||
|
|
|
||
|
|
function listener(event, exec_state, event_data, data) {
|
||
|
|
if (event != Debug.DebugEvent.Break) return;
|
||
|
|
try {
|
||
|
|
assertEquals(frame_depth, exec_state.frameCount());
|
||
|
|
assertTrue(/\/\/ Break$/.test(exec_state.frame(0).sourceLineText()));
|
||
|
|
assertEquals(12 - frame_depth, exec_state.frame(0).evaluate("x").value());
|
||
|
|
frame_depth--;
|
||
|
|
} catch (e) {
|
||
|
|
exception = e;
|
||
|
|
print(e + e.stack);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function ChooseCode(f, x) {
|
||
|
|
if (x == 1) {
|
||
|
|
Debug.setBreakPoint(factorial, 4);
|
||
|
|
}
|
||
|
|
switch (x % 2) {
|
||
|
|
case 0:
|
||
|
|
%BaselineFunctionOnNextCall(f);
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
%InterpretFunctionOnNextCall(f);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function factorial(x) {
|
||
|
|
ChooseCode(factorial, x);
|
||
|
|
if (x == 1) return 1;
|
||
|
|
var factor = factorial(x - 1);
|
||
|
|
return x * factor; // Break
|
||
|
|
}
|
||
|
|
|
||
|
|
Debug.setListener(listener);
|
||
|
|
|
||
|
|
assertEquals(3628800, factorial(10));
|
||
|
|
|
||
|
|
Debug.setListener(null);
|
||
|
|
assertNull(exception);
|
||
|
|
assertEquals(1, frame_depth);
|