C++ Ptr::get方法代码示例

Item::Ptr Divide::execute(const AnyAtomicType::Ptr &atom1, const AnyAtomicType::Ptr &atom2, DynamicContext *context) const
{
  if(atom1 == NULLRCP || atom2 == NULLRCP) return 0;
  
  if(atom1->isNumericValue()) {
    if(atom2->isNumericValue()) {
      return (const Item::Ptr)((Numeric*)(const AnyAtomicType*)atom1)->divide((const Numeric::Ptr )atom2, context);
    }
    else {
      XQThrow(XPath2ErrorException,X("Divide::createSequence"), X("An attempt to divide a numeric type by a non-numeric type has occurred [err:XPTY0004]"));
    }
  }

  if(atom1->getPrimitiveTypeIndex() == AnyAtomicType::DAY_TIME_DURATION ||
     atom1->getPrimitiveTypeIndex() == AnyAtomicType::YEAR_MONTH_DURATION) {
    const ATDurationOrDerived* duration = (const ATDurationOrDerived*)atom1.get();
    if(atom2->isNumericValue()) {
      return (const Item::Ptr)duration->divide((const Numeric *)atom2.get(), context);
    }
    else if(atom2->getPrimitiveTypeIndex() == AnyAtomicType::DAY_TIME_DURATION ||
              atom2->getPrimitiveTypeIndex() == AnyAtomicType::YEAR_MONTH_DURATION) {
      return (const Item::Ptr)duration->divide((const ATDurationOrDerived*)atom2.get(), context);
    }
    else {
      XQThrow(XPath2ErrorException,X("Divide::createSequence"), X("An attempt to divide an xs:duration by an invalid type has occured [err:XPTY0004]"));
    }
  }
  else {
    XQThrow(XPath2ErrorException,X("Divide::createSequence"), X("The operator div has been called on invalid operand types [err:XPTY0004]"));
  }

  return 0;
}

/* returns true if the two objects
   * false otherwise */
bool ATGYearOrDerivedImpl::equals(const AnyAtomicType::Ptr &target, const DynamicContext* context) const {
  if(this->getPrimitiveTypeIndex() != target->getPrimitiveTypeIndex()) {
    XQThrow2(::IllegalArgumentException,X("ATGYearOrDerivedImpl::equals"),
	    X("Equality operator for given types not supported [err:XPTY0004]"));
  }
  return compare((const ATGYearOrDerived *)target.get(), context) == 0;
}

EventGenerator::Ptr XQAttributeConstructor::generateEvents(EventHandler *events, DynamicContext *context,
                                                      bool preserveNS, bool preserveType) const
{
  AnyAtomicType::Ptr itemName = m_name->createResult(context)->next(context);
  const ATQNameOrDerived* pQName = (const ATQNameOrDerived*)itemName.get();
  const XMLCh *prefix = pQName->getPrefix();
  const XMLCh *uri = pQName->getURI();
  const XMLCh *name = pQName->getName();

  if((uri==NULL && XPath2Utils::equals(name, XMLUni::fgXMLNSString)) ||
     XPath2Utils::equals(uri, XMLUni::fgXMLNSURIName))
    XQThrow(ASTException,X("DOM Constructor"),X("A computed attribute constructor cannot create a namespace declaration [err:XQDY0044]"));

  XMLBuffer value;
  getStringValue(m_children, value, context);

  const XMLCh *typeURI = SchemaSymbols::fgURI_SCHEMAFORSCHEMA;
  const XMLCh *typeName = ATUntypedAtomic::fgDT_UNTYPEDATOMIC;

  // check if it's xml:id
  static const XMLCh id[] = { 'i', 'd', 0 };
  if(XPath2Utils::equals(name, id) && XPath2Utils::equals(uri, XMLUni::fgXMLURIName)) {
    // If the attribute name is xml:id, the string value and typed value of the attribute are further normalized by 
    // discarding any leading and trailing space (#x20) characters, and by replacing sequences of space (#x20) characters 
    // by a single space (#x20) character.
    XMLString::collapseWS(value.getRawBuffer(), context->getMemoryManager());
    typeURI = SchemaSymbols::fgURI_SCHEMAFORSCHEMA;
    typeName = XMLUni::fgIDString;
  }

  events->attributeEvent(emptyToNull(prefix), emptyToNull(uri), name, value.getRawBuffer(), typeURI, typeName);
  return 0;
}

EventGenerator::Ptr XQCopy::generateEventsImpl(const Item::Ptr &toBeCopied, EventHandler *events, DynamicContext *context,
                                               bool preserveNS, bool preserveType) const
{
  if(!toBeCopied->isNode()) {
    toBeCopied->generateEvents(events, context, preserveNS, preserveType);
    return 0;
  }

  Node *node = (Node*)toBeCopied.get();

  if(node->dmNodeKind() == Node::element_string) {
    NoInheritFilter niFilter(events, context->getMemoryManager());
    if(!inheritNamespaces_) events = &niFilter;

    AnyAtomicType::Ptr itemName = node->dmNodeName(context);
    const ATQNameOrDerived *pQName = (const ATQNameOrDerived*)itemName.get();
    const XMLCh *prefix = emptyToNull(pQName->getPrefix());
    const XMLCh *uri = emptyToNull(pQName->getURI());
    const XMLCh *localname = pQName->getName();

    events->startElementEvent(prefix, uri, localname);

    ElemConstructFilter elemFilter(events, this, context->getMemoryManager());

    if(copyNamespaces_) {
      Result nsnodes = node->dmNamespaceNodes(context, this);
      Item::Ptr ns;
      while((ns = nsnodes->next(context)).notNull()) {
        ns->generateEvents(&elemFilter, context, preserveNS, preserveType);
      }
    }

    for(VectorOfASTNodes::const_iterator itCont = children_.begin(); itCont != children_.end (); ++itCont) {
      (*itCont)->generateAndTailCall(&elemFilter, context, preserveNS, preserveType);
    }

    // TBD validation and type - jpcs
    const XMLCh *typeURI = SchemaSymbols::fgURI_SCHEMAFORSCHEMA;
    const XMLCh *typeName = DocumentCache::g_szUntyped;

    events->endElementEvent(prefix, uri, localname, typeURI, typeName);
  }
  else if(node->dmNodeKind() == Node::document_string) {
    events->startDocumentEvent(0, 0);

    DocConstructFilter filter(events, this);

    for(VectorOfASTNodes::const_iterator itCont = children_.begin(); itCont != children_.end (); ++itCont) {
      (*itCont)->generateAndTailCall(&filter, context, preserveNS, preserveType);
    }

    events->endDocumentEvent();
  }
  else {
    node->generateEvents(events, context, preserveNS, preserveType);
  }

  return 0;
}

/*static*/ bool GreaterThanEqual::greater_than_equal(const AnyAtomicType::Ptr &arg1, const AnyAtomicType::Ptr &arg2, Collation* collation, DynamicContext* context, const LocationInfo *info)
{
  // A ge B numeric               numeric                 op:numeric-greater-than(A, B) or op:numeric-equal(A, B)
  // A ge B xs:boolean            xs:boolean              fn:not(op:boolean-less-than(A, B))
  // A ge B xs:string             xs:string               op:numeric-greater-than(fn:compare(A, B), -1)
  // A ge B xs:date               xs:date                 fn:not(op:date-less-than(A, B))
  // A ge B xs:time               xs:time                 fn:not(op:time-less-than(A, B))
  // A ge B xs:dateTime           xs:dateTime             fn:not(op:datetime-less-than(A, B))
  // A ge B xdt:yearMonthDuration xdt:yearMonthDuration   fn:not(op:yearMonthDuration-less-than(A, B))
  // A ge B xdt:dayTimeDuration   xdt:dayTimeDuration     fn:not(op:dayTimeDuration-less-than(A, B))
  // numeric values need a special comparison, for the others we can just rely on LessThan
  if(arg1->isNumericValue() && arg2->isNumericValue()) {
    if(((Numeric*)arg1.get())->getState() == Numeric::NaN ||
       ((Numeric*)arg2.get())->getState() == Numeric::NaN) return false;
  }

  return !LessThan::less_than(arg1,arg2,collation,context, info);
}

Item::Ptr Multiply::execute(const AnyAtomicType::Ptr &atom1, const AnyAtomicType::Ptr &atom2, DynamicContext *context) const
{
  if(atom1.isNull() || atom2.isNull()) return 0;

  // xs:double * xs:duration (only xdt:dayTimeDuration and xdt:yearMonthDuration)
  if(atom1->isNumericValue() &&
     (atom2->getPrimitiveTypeIndex() == AnyAtomicType::DAY_TIME_DURATION ||
      atom2->getPrimitiveTypeIndex() == AnyAtomicType::YEAR_MONTH_DURATION)) {
      return ((const ATDurationOrDerived*)atom2.get())->multiply((const Numeric*)atom1.get(), context);
  }
  // xs:duration * xs:double (only xdt:dayTimeDuration and xdt:yearMonthDuration)
  if(atom2->isNumericValue() &&
     (atom1->getPrimitiveTypeIndex() == AnyAtomicType::DAY_TIME_DURATION ||
      atom1->getPrimitiveTypeIndex() == AnyAtomicType::YEAR_MONTH_DURATION)) {
    return ((const ATDurationOrDerived*)atom1.get())->multiply((const Numeric*)atom2.get(), context);
  }

  // numeric * numeric
  if(atom1->isNumericValue()) {
    if(atom2->isNumericValue()) {
      return ((const Numeric*)atom1.get())->multiply((const Numeric*)atom2.get(), context);
    }
    else {
      XQThrow(XPath2ErrorException,X("Multiply::createSequence"), X("An attempt to multiply a non numeric type to a numeric type has occurred [err:XPTY0004]"));
    }
  }

  XQThrow(XPath2ErrorException,X("Multiply::createSequence"), X("The operator * has been called on invalid operand types [err:XPTY0004]"));

}

  bool operator()(const AnyAtomicType::Ptr &a, const AnyAtomicType::Ptr &b) const
  {
    AnyAtomicType::AtomicObjectType atype = getSortType(a);
    AnyAtomicType::AtomicObjectType btype = getSortType(b);

    if(atype != btype) return atype < btype;

    // Items are comparable
    switch(atype) {
    case AnyAtomicType::STRING:
      return collation_->compare(a->asString(context_), b->asString(context_)) < 0;
    case AnyAtomicType::DOUBLE:
      return ((const Numeric *)a.get())->compare((const Numeric *)b.get(), context_) < 0;
    case AnyAtomicType::DURATION:
      return ((const ATDurationOrDerived *)a.get())->compare((const ATDurationOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::BASE_64_BINARY:
      return ((const ATBase64BinaryOrDerived *)a.get())->compare((const ATBase64BinaryOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::BOOLEAN:
      return ((const ATBooleanOrDerived *)a.get())->compare((const ATBooleanOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::DATE:
      return ((const ATDateOrDerived *)a.get())->compare((const ATDateOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::DATE_TIME:
      return ((const ATDateTimeOrDerived *)a.get())->compare((const ATDateTimeOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::G_DAY:
      return ((const ATGDayOrDerived *)a.get())->compare((const ATGDayOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::G_MONTH:
      return ((const ATGMonthOrDerived *)a.get())->compare((const ATGMonthOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::G_MONTH_DAY:
      return ((const ATGMonthDayOrDerived *)a.get())->compare((const ATGMonthDayOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::G_YEAR:
      return ((const ATGYearOrDerived *)a.get())->compare((const ATGYearOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::G_YEAR_MONTH:
      return ((const ATGYearMonthOrDerived *)a.get())->compare((const ATGYearMonthOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::HEX_BINARY:
      return ((const ATHexBinaryOrDerived *)a.get())->compare((const ATHexBinaryOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::NOTATION:
      return ((const ATNotationOrDerived *)a.get())->compare((const ATNotationOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::QNAME:
      return ((const ATQNameOrDerived *)a.get())->compare((const ATQNameOrDerived *)b.get(), context_) < 0;
    case AnyAtomicType::TIME:
      return ((const ATTimeOrDerived *)a.get())->compare((const ATTimeOrDerived *)b.get(), context_) < 0;
    default: break;
    }

    assert(false);
    return false;
  }

/*static*/ bool GreaterThan::greater_than(const AnyAtomicType::Ptr &atom1, const AnyAtomicType::Ptr &atom2, Collation* collation, DynamicContext* context, const LocationInfo *info)
{
  try {
    // take care of Numeric types first
    if(atom1->isNumericValue()) {
      if(atom2->isNumericValue()) {
        return ((Numeric*)(const AnyAtomicType*)atom1)->greaterThan((const Numeric::Ptr )atom2, context);
      } else {
        XQThrow2(XPath2ErrorException,X("GreaterThan::greater_than"), X("An attempt to compare a numeric type to a non numeric type has occurred [err:XPTY0004]"));
      }
    }

    switch(atom1->getPrimitiveTypeIndex()) {
    case AnyAtomicType::BOOLEAN:
    {
      // op:boolean-greater-than(A, B)
      if(atom2->getPrimitiveTypeIndex() != AnyAtomicType::BOOLEAN) 
        XQThrow2(XPath2ErrorException,X("GreaterThan::greater_than"), X("An attempt to compare a boolean type to a non boolean type has occurred [err:XPTY0004]"));
      return ((const ATBooleanOrDerived*)atom1.get())->compare((const ATBooleanOrDerived*)atom2.get(), context) > 0;
    }
    case AnyAtomicType::STRING:
    case AnyAtomicType::ANY_URI:
    {
      // use function compare
      if(atom2->getPrimitiveTypeIndex() != AnyAtomicType::STRING && 
         atom2->getPrimitiveTypeIndex() != AnyAtomicType::ANY_URI)
        XQThrow2(XPath2ErrorException,X("GreaterThan::greater_than"), X("An attempt to compare a string type to a non string type has occurred [err:XPTY0004]"));
      // if the function returns 1, then atom1 is greater
      return collation->compare(atom1->asString(context),atom2->asString(context))>0;
    }
    case AnyAtomicType::DATE:
    {
      // op:date-greater-than(A, B)
      if(atom2->getPrimitiveTypeIndex() != AnyAtomicType::DATE)
        XQThrow2(XPath2ErrorException,X("GreaterThan::greater_than"), X("An attempt to compare a date type to a non date type has occurred [err:XPTY0004]"));
      return ((ATDateOrDerived*)atom1.get())->compare((const ATDateOrDerived::Ptr )atom2, context) > 0;
    }
    case AnyAtomicType::TIME:
    {
      // op:time-greater-than(A, B)
      if(atom2->getPrimitiveTypeIndex() != AnyAtomicType::TIME) 
        XQThrow2(XPath2ErrorException,X("GreaterThan::greater_than"), X("An attempt to compare a time type to a non time type has occurred [err:XPTY0004]"));
      return ((ATTimeOrDerived*)atom1.get())->compare((const ATTimeOrDerived::Ptr )atom2, context) > 0;
    }
    case AnyAtomicType::DATE_TIME:
    {
      // op:datetime-greater-than(A, B)
      if(atom2->getPrimitiveTypeIndex() != AnyAtomicType::DATE_TIME)
        XQThrow2(XPath2ErrorException,X("GreaterThan::greater_than"), X("An attempt to compare a dateTime type to a non dateTime type has occurred [err:XPTY0004]"));
      return ((ATDateTimeOrDerived*)atom1.get())->compare((const ATDateTimeOrDerived::Ptr)atom2, context) > 0;
    }
    case AnyAtomicType::DAY_TIME_DURATION:
    {
      if(atom2->getPrimitiveTypeIndex() != AnyAtomicType::DAY_TIME_DURATION)
        XQThrow2(XPath2ErrorException,X("GreaterThan::greater_than"), X("An attempt to compare a duration type to a non duration type has occurred [err:XPTY0004]"));
      return ((const ATDurationOrDerived*)atom1.get())->compare((const ATDurationOrDerived*)atom2.get(), context) > 0;
    }
    case AnyAtomicType::YEAR_MONTH_DURATION:
    {
      if(atom2->getPrimitiveTypeIndex() != AnyAtomicType::YEAR_MONTH_DURATION)
        XQThrow2(XPath2ErrorException,X("GreaterThan::greater_than"), X("An attempt to compare a duration type to a non duration type has occurred [err:XPTY0004]"));
      return ((const ATDurationOrDerived*)atom1.get())->compare((const ATDurationOrDerived*)atom2.get(), context) > 0;
    }
    default:
      XQThrow2(XPath2ErrorException,X("GreaterThan::greater_than"), X("Unexpected data type in operator 'gt' [err:XPTY0004]"));
    }
    XQThrow2(FunctionException,X("GreaterThan::greater_than"), X("An equality operator is not defined for the provided arguments [err:XPTY0004]"));
  }
  catch(XQException &e) {
      if(e.getXQueryLine() == 0)
        e.setXQueryPosition(info);
      throw;
  }

}

 static inline bool isEmptyOrNaN(const AnyAtomicType::Ptr &si)
 {
   return si.isNull() || (si->isNumericValue() && ((Numeric*)si.get())->isNaN());
 }