dom/xslt/xpath/txErrorExpr.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dom/xslt/xpath/txErrorExpr.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,43 @@
     1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "nsError.h"
    1.10 +#include "txExpr.h"
    1.11 +#include "nsString.h"
    1.12 +#include "txIXPathContext.h"
    1.13 +
    1.14 +nsresult
    1.15 +txErrorExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult)
    1.16 +{
    1.17 +    *aResult = nullptr;
    1.18 +
    1.19 +    nsAutoString err(NS_LITERAL_STRING("Invalid expression evaluated"));
    1.20 +#ifdef TX_TO_STRING
    1.21 +    err.AppendLiteral(": ");
    1.22 +    toString(err);
    1.23 +#endif
    1.24 +    aContext->receiveError(err,
    1.25 +                           NS_ERROR_XPATH_INVALID_EXPRESSION_EVALUATED);
    1.26 +
    1.27 +    return NS_ERROR_XPATH_INVALID_EXPRESSION_EVALUATED;
    1.28 +}
    1.29 +
    1.30 +TX_IMPL_EXPR_STUBS_0(txErrorExpr, ANY_RESULT)
    1.31 +
    1.32 +bool
    1.33 +txErrorExpr::isSensitiveTo(ContextSensitivity aContext)
    1.34 +{
    1.35 +    // It doesn't really matter what we return here, but it might
    1.36 +    // be a good idea to try to keep this as unoptimizable as possible
    1.37 +    return true;
    1.38 +}
    1.39 +
    1.40 +#ifdef TX_TO_STRING
    1.41 +void
    1.42 +txErrorExpr::toString(nsAString& aStr)
    1.43 +{
    1.44 +    aStr.Append(mStr);
    1.45 +}
    1.46 +#endif

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