| /**************************************************************************** |
| ** |
| ** 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 |
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| ** GNU Lesser General Public License Usage |
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| ** General Public License version 3 as published by the Free Software |
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| ** packaging of this file. Please review the following information to |
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| ** |
| ** 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 |
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| ** $QT_END_LICENSE$ |
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| ****************************************************************************/ |
| |
| #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 |
| |