The Tor Browser: dom/xslt/xpath/nsXPathNSResolver.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: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

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

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

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

     6 #include "nsXPathNSResolver.h"

     7 #include "nsDOMClassInfoID.h"

     8 #include "nsDOMString.h"

    10 NS_IMPL_CYCLE_COLLECTION(nsXPathNSResolver, mNode)

    12 NS_IMPL_CYCLE_COLLECTING_ADDREF(nsXPathNSResolver)

    13 NS_IMPL_CYCLE_COLLECTING_RELEASE(nsXPathNSResolver)

    15 DOMCI_DATA(XPathNSResolver, nsXPathNSResolver)

    17 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsXPathNSResolver)

    18   NS_INTERFACE_MAP_ENTRY(nsIDOMXPathNSResolver)

    19   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMXPathNSResolver)

    20   NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(XPathNSResolver)

    21 NS_INTERFACE_MAP_END

    23 nsXPathNSResolver::nsXPathNSResolver(nsIDOMNode* aNode)

    24   : mNode(aNode)

    25 {

    26     NS_ASSERTION(mNode, "Need a node to resolve namespaces.");

    27 }

    29 NS_IMETHODIMP

    30 nsXPathNSResolver::LookupNamespaceURI(const nsAString & aPrefix,

    31                                       nsAString & aResult)

    32 {

    33     if (aPrefix.EqualsLiteral("xml")) {

    34         aResult.AssignLiteral("http://www.w3.org/XML/1998/namespace");

    36         return NS_OK;

    37     }

    39     if (!mNode) {

    40         SetDOMStringToNull(aResult);

    42         return NS_OK;

    43     }

    45     return mNode->LookupNamespaceURI(aPrefix, aResult);

    46 }

The Tor Browser / file revision

dom/xslt/xpath/nsXPathNSResolver.cpp@97036ab72558

dom/xslt/xpath/nsXPathNSResolver.cpp