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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGlobal>
#include "qexpression_p.h"
#include "qstaticcontext_p.h"
#include "qtokenizer_p.h"
#include "qparsercontext_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
ParserContext::ParserContext(const StaticContext::Ptr &context,
const QXmlQuery::QueryLanguage lang,
Tokenizer *const tokener) : staticContext(context)
, tokenizer(tokener)
, languageAccent(lang)
, nodeTestSource(BuiltinTypes::element)
, moduleNamespace(StandardNamespaces::empty)
, isPreviousEnclosedExpr(false)
, elementConstructorDepth(0)
, hasSecondPrologPart(false)
, preserveNamespacesMode(true)
, inheritNamespacesMode(true)
, isParsingPattern(false)
, currentImportPrecedence(1)
, m_evaluationCacheSlot(-1)
, m_expressionSlot(0)
, m_positionSlot(-1)
, m_globalVariableSlot(-1)
, m_currentTemplateID(InitialTemplateID)
{
resolvers.push(context->namespaceBindings());
Q_ASSERT(tokenizer);
Q_ASSERT(context);
m_isParsingWithParam.push(false);
isBackwardsCompat.push(false);
}
void ParserContext::finalizePushedVariable(const int amount,
const bool shouldPop)
{
for(int i = 0; i < amount; ++i)
{
const VariableDeclaration::Ptr var(shouldPop ? variables.pop() : variables.top());
Q_ASSERT(var);
if(var->isUsed())
continue;
else
{
staticContext->warning(QtXmlPatterns::tr("The variable %1 is unused")
.arg(formatKeyword(var, staticContext->namePool())));
}
}
}
void ParserContext::handleStackOverflow(const char *, short **yyss, size_t,
TokenValue **yyvs, size_t,
XPATHLTYPE **yyls, size_t,
size_t *yystacksize)
{
bool isFirstTime = parserStack_yyvs.isEmpty();
Q_ASSERT(*yystacksize < INT_MAX - 50);
int new_yystacksize = static_cast<int>(*yystacksize) + 50;
parserStack_yyss.resize(new_yystacksize);
parserStack_yyvs.resize(new_yystacksize);
parserStack_yyls.resize(new_yystacksize);
if (isFirstTime) {
for (int i = 0, ei = static_cast<int>(*yystacksize); i != ei; ++i) {
parserStack_yyss[i] = (*yyss)[i];
parserStack_yyvs[i] = (*yyvs)[i];
parserStack_yyls[i] = (*yyls)[i];
}
}
*yyss = parserStack_yyss.data();
*yyvs = parserStack_yyvs.data();
*yyls = parserStack_yyls.data();
*yystacksize = new_yystacksize;
}
QT_END_NAMESPACE
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