Expression::Ptr ElementConstructor::typeCheck(const StaticContext::Ptr &context,
                                              const SequenceType::Ptr &reqType)
{
    /* What does this code do? When type checking our children, our namespace
     * bindings, which are also children of the form of NamespaceConstructor
     * instances, must be statically in-scope for them, so find them and
     * shuffle their bindings into the StaticContext. */

    m_staticBaseURI = context->baseURI();

    /* Namespace declarations changes the in-scope bindings, so let's
     * first lookup our child NamespaceConstructors. */
    const ID operandID = m_operand2->id();

    NamespaceResolver::Bindings overrides;
    if(operandID == IDExpressionSequence)
    {
        const Expression::List operands(m_operand2->operands());
        const int len = operands.count();

        for(int i = 0; i < len; ++i)
        {
            if(operands.at(i)->is(IDNamespaceConstructor))
            {
                const QXmlName &nb = operands.at(i)->as<NamespaceConstructor>()->namespaceBinding();
                overrides.insert(nb.prefix(), nb.namespaceURI());
            }
        }
    }

    const NamespaceResolver::Ptr newResolver(new DelegatingNamespaceResolver(context->namespaceBindings(), overrides));
    const StaticContext::Ptr augmented(new StaticNamespaceContext(newResolver, context));

    return PairContainer::typeCheck(augmented, reqType);
}
示例#2
0
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);
}
Expression::Ptr ElementConstructor::typeCheck(const StaticContext::Ptr &context,
                                              const SequenceType::Ptr &reqType)
{
    m_staticBaseURI = context->baseURI();

    /* Namespace declarations changes the in-scope bindings, so let's
     * first lookup our child NamespaceConstructors. */
    const ID operandID = m_operand2->id();

    NamespaceResolver::Bindings overrides;
    if(operandID == IDExpressionSequence)
    {
        const Expression::List operands(m_operand2->operands());
        const int len = operands.count();

        for(int i = 0; i < len; ++i)
        {
            if(operands.at(i)->is(IDNamespaceConstructor))
            {
                const QXmlName &nb = operands.at(i)->as<NamespaceConstructor>()->namespaceBinding();
                overrides.insert(nb.prefix(), nb.namespaceURI());
            }
        }
    }

    const NamespaceResolver::Ptr newResolver(new DelegatingNamespaceResolver(context->namespaceBindings(), overrides));
    const StaticContext::Ptr augmented(new StaticNamespaceContext(newResolver, context));

    return PairContainer::typeCheck(augmented, reqType);
}
示例#4
0
Expression::Ptr StaticNamespacesContainer::typeCheck(const StaticContext::Ptr &context,
                                                     const SequenceType::Ptr &reqType)
{
    m_resolver = NamespaceResolver::Ptr(context->namespaceBindings());
    Q_ASSERT(m_resolver);

    return FunctionCall::typeCheck(context, reqType);
}
示例#5
0
Expression::Ptr CastAs::castToQName(const StaticContext::Ptr &context) const
{
    /* Apply the whitespace facet by calling trimmed(). */
    /* We can assume m_operand is an Expression because this is a requirement
     * for casting to xs:QName. */
    const QString lexQName(m_operand->as<Literal>()->item().as<AtomicValue>()->stringValue().trimmed());

    const QXmlName
        expName(QNameConstructor::expandQName<StaticContext::Ptr,
                                              ReportContext::FORG0001,
                                              ReportContext::FONS0004>(lexQName,
                                                                       context,
                                                                       context->namespaceBindings(), this));
    return wrapLiteral(toItem(QNameValue::fromValue(context->namePool(), expName)), context, this);
}
示例#6
0
QXmlName::NamespaceCode QNameConstructor::namespaceForPrefix(const QXmlName::PrefixCode prefix,
                                                          const StaticContext::Ptr &context,
                                                          const SourceLocationReflection *const r)
{
    Q_ASSERT(context);
    const QXmlName::NamespaceCode ns(context->namespaceBindings()->lookupNamespaceURI(prefix));

    if(ns == NamespaceResolver::NoBinding)
    {
        context->error(QtXmlPatterns::tr("No namespace binding exists for the prefix %1")
                          .arg(formatKeyword(context->namePool()->stringForPrefix(prefix))),
                       ReportContext::XPST0081,
                       r);
        return NamespaceResolver::NoBinding;
    }
    else
        return ns;
}