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6** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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39
40#include <QtGlobal>
41
42#include "qexpression_p.h"
43#include "qstaticcontext_p.h"
44#include "qtokenizer_p.h"
45
46#include "qparsercontext_p.h"
47
48QT_BEGIN_NAMESPACE
49
50using namespace QPatternist;
51
52ParserContext::ParserContext(const StaticContext::Ptr &context,
53 const QXmlQuery::QueryLanguage lang,
54 Tokenizer *const tokener) : staticContext(context)
55 , tokenizer(tokener)
56 , languageAccent(lang)
57 , nodeTestSource(BuiltinTypes::element)
58 , moduleNamespace(StandardNamespaces::empty)
59 , isPreviousEnclosedExpr(false)
60 , elementConstructorDepth(0)
61 , hasSecondPrologPart(false)
62 , preserveNamespacesMode(true)
63 , inheritNamespacesMode(true)
64 , isParsingPattern(false)
65 , currentImportPrecedence(1)
66 , m_evaluationCacheSlot(-1)
67 , m_expressionSlot(0)
68 , m_positionSlot(-1)
69 , m_globalVariableSlot(-1)
70 , m_currentTemplateID(InitialTemplateID)
71{
72 resolvers.push(t: context->namespaceBindings());
73 Q_ASSERT(tokenizer);
74 Q_ASSERT(context);
75 m_isParsingWithParam.push(t: false);
76 isBackwardsCompat.push(t: false);
77}
78
79void ParserContext::finalizePushedVariable(const int amount,
80 const bool shouldPop)
81{
82 for(int i = 0; i < amount; ++i)
83 {
84 const VariableDeclaration::Ptr var(shouldPop ? variables.pop() : variables.top());
85 Q_ASSERT(var);
86
87 if(var->isUsed())
88 continue;
89 else
90 {
91 staticContext->warning(message: QtXmlPatterns::tr(sourceText: "The variable %1 is unused")
92 .arg(a: formatKeyword(var, np: staticContext->namePool())));
93 }
94 }
95}
96
97void ParserContext::handleStackOverflow(const char *, short **yyss, size_t,
98 TokenValue **yyvs, size_t,
99 XPATHLTYPE **yyls, size_t,
100 size_t *yystacksize)
101{
102 bool isFirstTime = parserStack_yyvs.isEmpty();
103 Q_ASSERT(*yystacksize < INT_MAX - 50);
104 int new_yystacksize = static_cast<int>(*yystacksize) + 50;
105 parserStack_yyss.resize(asize: new_yystacksize);
106 parserStack_yyvs.resize(asize: new_yystacksize);
107 parserStack_yyls.resize(asize: new_yystacksize);
108 if (isFirstTime) {
109 for (int i = 0, ei = static_cast<int>(*yystacksize); i != ei; ++i) {
110 parserStack_yyss[i] = (*yyss)[i];
111 parserStack_yyvs[i] = (*yyvs)[i];
112 parserStack_yyls[i] = (*yyls)[i];
113 }
114 }
115 *yyss = parserStack_yyss.data();
116 *yyvs = parserStack_yyvs.data();
117 *yyls = parserStack_yyls.data();
118 *yystacksize = new_yystacksize;
119}
120
121QT_END_NAMESPACE
122
123

source code of qtxmlpatterns/src/xmlpatterns/parser/qparsercontext.cpp