blob: f0495cda17b9441a6a56895b15400fbd5ffa4de4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
// Don't hand out internal function objects via Debugger.Environment.prototype.getVariable.
// When the real scope chain object holding the binding for 'f' in 'function f()
// { ... }' is optimized out because it's never used, we whip up fake scope
// chain objects for Debugger to use, if it looks. However, the value of the
// variable f will be an internal function object, not a live function object,
// since the latter was not recorded. Internal function objects should not be
// exposed via Debugger.
var g = newGlobal({newCompartment: true});
var dbg = new Debugger(g);
dbg.onDebuggerStatement = function (frame) {
var g_call_env = frame.older.environment; // g's locals
var g_decl_env = g_call_env.parent; // 'function g' binding
var f_call_env = g_decl_env.parent; // f's locals
var f_decl_env = f_call_env.parent; // 'function f' binding
assertEq(f_decl_env.getVariable('f').optimizedOut, true);
}
g.evaluate(`
function h() { debugger; }
(function f() {
return function g() {
h();
return 1;
}
})()();
`);
|
