Exemple #1
0
/* static */ bool
DebuggerMemory::setTrackingAllocationSites(JSContext *cx, unsigned argc, Value *vp)
{
    THIS_DEBUGGER_MEMORY(cx, argc, vp, "(set trackingAllocationSites)", args, memory);
    if (!args.requireAtLeast(cx, "(set trackingAllocationSites)", 1))
        return false;

    Debugger *dbg = memory->getDebugger();
    bool enabling = ToBoolean(args[0]);

    if (enabling == dbg->trackingAllocationSites) {
        // Nothing to do here...
        args.rval().setUndefined();
        return true;
    }

    if (enabling) {
        for (GlobalObjectSet::Range r = dbg->debuggees.all(); !r.empty(); r.popFront()) {
            JSCompartment *compartment = r.front()->compartment();
            if (compartment->hasObjectMetadataCallback()) {
                JS_ReportErrorNumber(cx, js_GetErrorMessage, nullptr,
                                     JSMSG_OBJECT_METADATA_CALLBACK_ALREADY_SET);
                return false;
            }
        }
    }

    for (GlobalObjectSet::Range r = dbg->debuggees.all(); !r.empty(); r.popFront()) {
        if (enabling) {
            r.front()->compartment()->setObjectMetadataCallback(SavedStacksMetadataCallback);
        } else {
            r.front()->compartment()->forgetObjectMetadataCallback();
        }
    }

    if (!enabling)
        dbg->emptyAllocationsLog();

    dbg->trackingAllocationSites = enabling;
    args.rval().setUndefined();
    return true;
}