1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/xslt/xpath/txUnionExpr.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,94 @@
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 "txExpr.h"
1.10 +#include "txIXPathContext.h"
1.11 +#include "txNodeSet.h"
1.12 +
1.13 + //-------------/
1.14 + //- UnionExpr -/
1.15 +//-------------/
1.16 +
1.17 + //-----------------------------/
1.18 + //- Virtual methods from Expr -/
1.19 +//-----------------------------/
1.20 +
1.21 +/**
1.22 + * Evaluates this Expr based on the given context node and processor state
1.23 + * @param context the context node for evaluation of this Expr
1.24 + * @param ps the ContextState containing the stack information needed
1.25 + * for evaluation
1.26 + * @return the result of the evaluation
1.27 +**/
1.28 +nsresult
1.29 +UnionExpr::evaluate(txIEvalContext* aContext, txAExprResult** aResult)
1.30 +{
1.31 + *aResult = nullptr;
1.32 + nsRefPtr<txNodeSet> nodes;
1.33 + nsresult rv = aContext->recycler()->getNodeSet(getter_AddRefs(nodes));
1.34 + NS_ENSURE_SUCCESS(rv, rv);
1.35 +
1.36 + uint32_t i, len = mExpressions.Length();
1.37 + for (i = 0; i < len; ++i) {
1.38 + nsRefPtr<txAExprResult> exprResult;
1.39 + rv = mExpressions[i]->evaluate(aContext, getter_AddRefs(exprResult));
1.40 + NS_ENSURE_SUCCESS(rv, rv);
1.41 +
1.42 + if (exprResult->getResultType() != txAExprResult::NODESET) {
1.43 + //XXX ErrorReport: report nonnodeset error
1.44 + return NS_ERROR_XSLT_NODESET_EXPECTED;
1.45 + }
1.46 +
1.47 + nsRefPtr<txNodeSet> resultSet, ownedSet;
1.48 + resultSet = static_cast<txNodeSet*>
1.49 + (static_cast<txAExprResult*>(exprResult));
1.50 + exprResult = nullptr;
1.51 + rv = aContext->recycler()->
1.52 + getNonSharedNodeSet(resultSet, getter_AddRefs(ownedSet));
1.53 + NS_ENSURE_SUCCESS(rv, rv);
1.54 +
1.55 + rv = nodes->addAndTransfer(ownedSet);
1.56 + NS_ENSURE_SUCCESS(rv, rv);
1.57 + }
1.58 +
1.59 + *aResult = nodes;
1.60 + NS_ADDREF(*aResult);
1.61 +
1.62 + return NS_OK;
1.63 +} //-- evaluate
1.64 +
1.65 +Expr::ExprType
1.66 +UnionExpr::getType()
1.67 +{
1.68 + return UNION_EXPR;
1.69 +}
1.70 +
1.71 +TX_IMPL_EXPR_STUBS_LIST(UnionExpr, NODESET_RESULT, mExpressions)
1.72 +
1.73 +bool
1.74 +UnionExpr::isSensitiveTo(ContextSensitivity aContext)
1.75 +{
1.76 + uint32_t i, len = mExpressions.Length();
1.77 + for (i = 0; i < len; ++i) {
1.78 + if (mExpressions[i]->isSensitiveTo(aContext)) {
1.79 + return true;
1.80 + }
1.81 + }
1.82 +
1.83 + return false;
1.84 +}
1.85 +
1.86 +#ifdef TX_TO_STRING
1.87 +void
1.88 +UnionExpr::toString(nsAString& dest)
1.89 +{
1.90 + uint32_t i;
1.91 + for (i = 0; i < mExpressions.Length(); ++i) {
1.92 + if (i > 0)
1.93 + dest.AppendLiteral(" | ");
1.94 + mExpressions[i]->toString(dest);
1.95 + }
1.96 +}
1.97 +#endif
