зеркало из https://github.com/mozilla/gecko-dev.git
59 строки
1.5 KiB
C++
59 строки
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef TRANSFRMX_NODESORTER_H
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#define TRANSFRMX_NODESORTER_H
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#include "txCore.h"
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#include "txList.h"
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class Expr;
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class txExecutionState;
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class txNodeSet;
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class txObject;
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class txXPathResultComparator;
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class txIEvalContext;
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class txNodeSetContext;
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/*
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* Sorts Nodes as specified by the W3C XSLT 1.0 Recommendation
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*/
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class txNodeSorter
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{
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public:
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txNodeSorter();
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~txNodeSorter();
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nsresult addSortElement(Expr* aSelectExpr, Expr* aLangExpr,
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Expr* aDataTypeExpr, Expr* aOrderExpr,
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Expr* aCaseOrderExpr, txIEvalContext* aContext);
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nsresult sortNodeSet(txNodeSet* aNodes, txExecutionState* aEs,
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txNodeSet** aResult);
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private:
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struct SortData
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{
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txNodeSorter* mNodeSorter;
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txNodeSetContext* mContext;
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txObject** mSortValues;
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nsresult mRv;
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};
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struct SortKey
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{
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Expr* mExpr;
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txXPathResultComparator* mComparator;
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};
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static int compareNodes(const void* aIndexA, const void* aIndexB,
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void* aSortData);
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static bool calcSortValue(txObject*& aSortValue, SortKey* aKey,
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SortData* aSortData, uint32_t aNodeIndex);
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txList mSortKeys;
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unsigned int mNKeys;
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};
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#endif
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