The Tor Browser: dom/bindings/Date.cpp@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #include "mozilla/dom/Date.h"

     9 #include "jsapi.h" // for JS_ObjectIsDate, JS_NewDateObjectMsec

    10 #include "jsfriendapi.h" // for js_DateGetMsecSinceEpoch

    11 #include "js/RootingAPI.h" // for Rooted, MutableHandle

    12 #include "js/Value.h" // for Value

    13 #include "jswrapper.h" // for CheckedUnwrap

    14 #include "mozilla/FloatingPoint.h" // for IsNaN, UnspecifiedNaN

    16 namespace mozilla {

    17 namespace dom {

    19 Date::Date()

    20   : mMsecSinceEpoch(UnspecifiedNaN<double>())

    21 {

    22 }

    24 bool

    25 Date::IsUndefined() const

    26 {

    27   return IsNaN(mMsecSinceEpoch);

    28 }

    30 bool

    31 Date::SetTimeStamp(JSContext* aCx, JSObject* aObject)

    32 {

    33   JS::Rooted<JSObject*> obj(aCx, aObject);

    34   MOZ_ASSERT(JS_ObjectIsDate(aCx, obj));

    36   obj = js::CheckedUnwrap(obj);

    37   // This really sucks: even if JS_ObjectIsDate, CheckedUnwrap can _still_ fail.

    38   if (!obj) {

    39     return false;

    40   }

    42   mMsecSinceEpoch = js_DateGetMsecSinceEpoch(obj);

    43   return true;

    44 }

    46 bool

    47 Date::ToDateObject(JSContext* aCx, JS::MutableHandle<JS::Value> aRval) const

    48 {

    49   JSObject* obj = JS_NewDateObjectMsec(aCx, mMsecSinceEpoch);

    50   if (!obj) {

    51     return false;

    52   }

    54   aRval.setObject(*obj);

    55   return true;

    56 }

    58 } // namespace dom

    59 } // namespace mozilla

The Tor Browser / file revision

dom/bindings/Date.cpp@97036ab72558

dom/bindings/Date.cpp