The Tor Browser: dom/xslt/xpath/txErrorExpr.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 "nsError.h"

     7 #include "txExpr.h"

     8 #include "nsString.h"

     9 #include "txIXPathContext.h"

    11 nsresult

    12 txErrorExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult)

    13 {

    14     *aResult = nullptr;

    16     nsAutoString err(NS_LITERAL_STRING("Invalid expression evaluated"));

    17 #ifdef TX_TO_STRING

    18     err.AppendLiteral(": ");

    19     toString(err);

    20 #endif

    21     aContext->receiveError(err,

    22                            NS_ERROR_XPATH_INVALID_EXPRESSION_EVALUATED);

    24     return NS_ERROR_XPATH_INVALID_EXPRESSION_EVALUATED;

    25 }

    27 TX_IMPL_EXPR_STUBS_0(txErrorExpr, ANY_RESULT)

    29 bool

    30 txErrorExpr::isSensitiveTo(ContextSensitivity aContext)

    31 {

    32     // It doesn't really matter what we return here, but it might

    33     // be a good idea to try to keep this as unoptimizable as possible

    34     return true;

    35 }

    37 #ifdef TX_TO_STRING

    38 void

    39 txErrorExpr::toString(nsAString& aStr)

    40 {

    41     aStr.Append(mStr);

    42 }

    43 #endif

The Tor Browser / file revision

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

dom/xslt/xpath/txErrorExpr.cpp