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// If a Debugger survives its debuggee, its object cache must still be swept.
var g2arr = []; // non-debuggee globals
var xarr = []; // debuggee objects
var N = 4, M = 4;
for (var i = 0; i < N; i++) {
var g1 = newGlobal();
g1.M = M;
var dbg = new Debugger(g1);
var g2 = g1.eval("newGlobal('same-compartment')");
g1.x = g2.eval("x = {};");
dbg.onDebuggerStatement = function (frame) { xarr.push(frame.eval("x").return); };
g1.eval("debugger;");
g2arr.push(g2);
g1 = null;
gc();
}
// At least some of the debuggees have probably been collected at this
// point. It is nondeterministic, though.
assertEq(g2arr.length, N);
assertEq(xarr.length, N);
// Try to make g2arr[i].eval eventually allocate a new object in the same
// location as a previously gc'd object. If the object caches are not being
// swept, the pointer coincidence will cause a Debugger.Object to be erroneously
// reused.
for (var i = 0; i < N; i++) {
var obj = xarr[i];
for (j = 0; j < M; j++) {
assertEq(obj instanceof Debugger.Object, true);
g2arr[i].eval("x = x.prop = {};");
obj = obj.getOwnPropertyDescriptor("prop").value;;
assertEq("seen" in obj, false);
obj.seen = true;
gc();
}
}
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