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+/****************************************************************************
+**
+** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $TROLLTECH_DUAL_LICENSE$
+**
+****************************************************************************/
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_XsdSchemaResolver_H
+#define Patternist_XsdSchemaResolver_H
+
+#include "qnamespacesupport_p.h"
+#include "qschematype_p.h"
+#include "qschematypefactory_p.h"
+#include "qxsdalternative_p.h"
+#include "qxsdattribute_p.h"
+#include "qxsdattributegroup_p.h"
+#include "qxsdelement_p.h"
+#include "qxsdmodelgroup_p.h"
+#include "qxsdnotation_p.h"
+#include "qxsdreference_p.h"
+#include "qxsdschema_p.h"
+#include "qxsdschemachecker_p.h"
+#include "qxsdsimpletype_p.h"
+
+#include <QtCore/QExplicitlySharedDataPointer>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+ class XsdSchemaContext;
+ class XsdSchemaParserContext;
+
+ /**
+ * @short Encapsulates the resolving of type/element references in a schema after parsing has finished.
+ *
+ * This class collects task for resolving types or element references. After the parsing has finished,
+ * one can start the resolve process by calling resolve().
+ *
+ * @ingroup Patternist_schema
+ * @author Tobias Koenig <tobias.koenig@trolltech.com>
+ */
+ class XsdSchemaResolver : public QSharedData
+ {
+ public:
+ typedef QExplicitlySharedDataPointer<XsdSchemaResolver> Ptr;
+
+ /**
+ * Creates a new schema resolver.
+ *
+ * @param context The schema context used for error reporting etc..
+ * @param parserContext The schema parser context where all objects to resolve belong to.
+ */
+ XsdSchemaResolver(const QExplicitlySharedDataPointer<XsdSchemaContext> &context, const XsdSchemaParserContext *parserContext);
+
+ /**
+ * Destroys the schema resolver.
+ */
+ ~XsdSchemaResolver();
+
+ /**
+ * Starts the resolve process.
+ */
+ void resolve();
+
+ /**
+ * Adds a resolve task for key references.
+ *
+ * The resolver will try to set the referencedKey property of @p keyRef to the <em>key</em> or <em>unique</em> object
+ * of @p element that has the given @p name.
+ */
+ void addKeyReference(const XsdElement::Ptr &element, const XsdIdentityConstraint::Ptr &keyRef, const QXmlName &name, const QSourceLocation &location);
+
+ /**
+ * Adds a resolve task for the base type of restriction of a simple type.
+ *
+ * The resolver will set the base type of @p simpleType to the type named by @p baseName.
+ */
+ void addSimpleRestrictionBase(const XsdSimpleType::Ptr &simpleType, const QXmlName &baseName, const QSourceLocation &location);
+
+ /**
+ * Removes the resolve task for the base type of restriction of the simple @p type.
+ */
+ void removeSimpleRestrictionBase(const XsdSimpleType::Ptr &type);
+
+ /**
+ * Adds a resolve task for the list type of a simple type.
+ *
+ * The resolver will set the itemType property of @p simpleType to the type named by @p typeName.
+ */
+ void addSimpleListType(const XsdSimpleType::Ptr &simpleType, const QXmlName &typeName, const QSourceLocation &location);
+
+ /**
+ * Adds a resolve task for the member types of a simple type.
+ *
+ * The resolver will set the memberTypes property of @p simpleType to the types named by @p typeNames.
+ */
+ void addSimpleUnionTypes(const XsdSimpleType::Ptr &simpleType, const QList<QXmlName> &typeNames, const QSourceLocation &location);
+
+ /**
+ * Adds a resolve task for the type of an element.
+ *
+ * The resolver will set the type of the @p element to the type named by @p typeName.
+ */
+ void addElementType(const XsdElement::Ptr &element, const QXmlName &typeName, const QSourceLocation &location);
+
+ /**
+ * Adds a resolve task for the base type of a complex type.
+ *
+ * The resolver will set the base type of @p complexType to the type named by @p baseName.
+ */
+ void addComplexBaseType(const XsdComplexType::Ptr &complexType, const QXmlName &baseName, const QSourceLocation &location, const XsdFacet::Hash &facets = XsdFacet::Hash());
+
+ /**
+ * Removes the resolve task for the base type of the complex @p type.
+ */
+ void removeComplexBaseType(const XsdComplexType::Ptr &type);
+
+ /**
+ * Adds a resolve task for the content type of a complex type.
+ *
+ * The resolver will set the content type properties for @p complexType based on the
+ * given explicit @p content and effective @p mixed value.
+ */
+ void addComplexContentType(const XsdComplexType::Ptr &complexType, const XsdParticle::Ptr &content, bool mixed);
+
+ /**
+ * Adds a resolve task for the type of an attribute.
+ *
+ * The resolver will set the type of the @p attribute to the type named by @p typeName.
+ */
+ void addAttributeType(const XsdAttribute::Ptr &attribute, const QXmlName &typeName, const QSourceLocation &location);
+
+ /**
+ * Adds a resolve task for the type of an alternative.
+ *
+ * The resolver will set the type of the @p alternative to the type named by @p typeName.
+ */
+ void addAlternativeType(const XsdAlternative::Ptr &alternative, const QXmlName &typeName, const QSourceLocation &location);
+
+ /**
+ * Adds a resolve task for the type of an alternative.
+ *
+ * The resolver will set the type of the @p alternative to the type of the @p element after
+ * the type of the @p element has been resolved.
+ */
+ void addAlternativeType(const XsdAlternative::Ptr &alternative, const XsdElement::Ptr &element);
+
+ /**
+ * Adds a resolve task for the substituion group affiliations of an element.
+ *
+ * The resolver will set the substitution group affiliations of the @p element to the
+ * top-level element named by @p elementNames.
+ */
+ void addSubstitutionGroupAffiliation(const XsdElement::Ptr &element, const QList<QXmlName> &elementName, const QSourceLocation &location);
+
+ /**
+ * Adds a resolve task for an element that has no type specified, only a substitution group
+ * affiliation.
+ *
+ * The resolver will set the type of the substitution group affiliation as type for the element.
+ */
+ void addSubstitutionGroupType(const XsdElement::Ptr &element);
+
+ /**
+ * Adds the component location hash, so the resolver is able to report meaning full
+ * error messages.
+ */
+ void addComponentLocationHash(const QHash<NamedSchemaComponent::Ptr, QSourceLocation> &hash);
+
+ /**
+ * Add a resolve task for enumeration facet values.
+ *
+ * In case the enumeration is of type QName or NOTATION, we have to resolve the QName later,
+ * so we store the namespace bindings together with the facet value here and resolve it as soon as
+ * we have all type information available.
+ */
+ void addEnumerationFacetValue(const AtomicValue::Ptr &facetValue, const NamespaceSupport &namespaceSupport);
+
+ /**
+ * Add a check job for redefined groups.
+ *
+ * When an element group is redefined, we have to check whether the redefined group is a valid
+ * restriction of the group it redefines. As we need all type information for that, we keep them
+ * here for later checking.
+ */
+ void addRedefinedGroups(const XsdModelGroup::Ptr &redefinedGroup, const XsdModelGroup::Ptr &group);
+
+ /**
+ * Add a check job for redefined attribute groups.
+ *
+ * When an attribute group is redefined, we have to check whether the redefined group is a valid
+ * restriction of the group it redefines. As we need all type information for that, we keep them
+ * here for later checking.
+ */
+ void addRedefinedAttributeGroups(const XsdAttributeGroup::Ptr &redefinedGroup, const XsdAttributeGroup::Ptr &group);
+
+ /**
+ * Adds a check for nested <em>all</em> groups.
+ */
+ void addAllGroupCheck(const XsdReference::Ptr &reference);
+
+ /**
+ * Copies the data to resolve to an @p other resolver.
+ *
+ * @note That functionality is only used by the redefine algorithm in the XsdSchemaParser.
+ */
+ void copyDataTo(const XsdSchemaResolver::Ptr &other) const;
+
+ /**
+ * Returns the to resolve base type name for the given @p type.
+ *
+ * @note That functionality is only used by the redefine algorithm in the XsdSchemaParser.
+ */
+ QXmlName baseTypeNameOfType(const SchemaType::Ptr &type) const;
+
+ /**
+ * Returns the to resolve type name for the given @p attribute.
+ *
+ * @note That functionality is only used by the redefine algorithm in the XsdSchemaParser.
+ */
+ QXmlName typeNameOfAttribute(const XsdAttribute::Ptr &attribute) const;
+
+ /**
+ * Sets the defaultOpenContent object from the schema parser.
+ */
+ void setDefaultOpenContent(const XsdComplexType::OpenContent::Ptr &openContent, bool appliesToEmpty);
+
+ private:
+ /**
+ * Resolves key references.
+ */
+ void resolveKeyReferences();
+
+ /**
+ * Resolves the base types of simple types derived by restriction.
+ */
+ void resolveSimpleRestrictionBaseTypes();
+
+ /**
+ * Resolves the other properties except the base type
+ * of all simple restrictions.
+ */
+ void resolveSimpleRestrictions();
+
+ /**
+ * Resolves the other properties except the base type
+ * of the given simple restriction.
+ *
+ * @param simpleType The restricted type to resolve.
+ * @param visitedTypes A set of already resolved types, used for termination of recursion.
+ */
+ void resolveSimpleRestrictions(const XsdSimpleType::Ptr &simpleType, QSet<XsdSimpleType::Ptr> &visitedTypes);
+
+ /**
+ * Resolves the item type property of simple types derived by list.
+ */
+ void resolveSimpleListType();
+
+ /**
+ * Resolves the member types property of simple types derived by union.
+ */
+ void resolveSimpleUnionTypes();
+
+ /**
+ * Resolves element types.
+ */
+ void resolveElementTypes();
+
+ /**
+ * Resolves base type of complex types.
+ */
+ void resolveComplexBaseTypes();
+
+ /**
+ * Resolves the simple content model of a complex type
+ * depending on its base type.
+ */
+ void resolveSimpleContentComplexTypes();
+
+ /**
+ * Resolves the complex content model of a complex type
+ * depending on its base type.
+ */
+ void resolveComplexContentComplexTypes();
+
+ /**
+ * Resolves the simple content model of a complex type
+ * depending on its base type.
+ *
+ * @param complexType The complex type to resolve.
+ * @param visitedTypes A set of already resolved types, used for termination of recursion.
+ */
+ void resolveSimpleContentComplexTypes(const XsdComplexType::Ptr &complexType, QSet<XsdComplexType::Ptr> &visitedTypes);
+
+ /**
+ * Resolves the complex content model of a complex type
+ * depending on its base type.
+ *
+ * @param complexType The complex type to resolve.
+ * @param visitedTypes A set of already resolved types, used for termination of recursion.
+ */
+ void resolveComplexContentComplexTypes(const XsdComplexType::Ptr &complexType, QSet<XsdComplexType::Ptr> &visitedTypes);
+
+ /**
+ * Resolves attribute types.
+ */
+ void resolveAttributeTypes();
+
+ /**
+ * Resolves alternative types.
+ */
+ void resolveAlternativeTypes();
+
+ /**
+ * Resolves substitution group affiliations.
+ */
+ void resolveSubstitutionGroupAffiliations();
+
+ /**
+ * Resolves substitution groups.
+ */
+ void resolveSubstitutionGroups();
+
+ /**
+ * Resolves all XsdReferences in the schema by their corresponding XsdElement or XsdModelGroup terms.
+ */
+ void resolveTermReferences();
+
+ /**
+ * Resolves all XsdReferences in the @p particle recursive by their corresponding XsdElement or XsdModelGroup terms.
+ */
+ void resolveTermReference(const XsdParticle::Ptr &particle, QSet<QXmlName> visitedGroups);
+
+ /**
+ * Resolves all XsdAttributeReferences in the schema by their corresponding XsdAttributeUse objects.
+ */
+ void resolveAttributeTermReferences();
+
+ /**
+ * Resolves all XsdAttributeReferences in the list of @p attributeUses by their corresponding XsdAttributeUse objects.
+ */
+ XsdAttributeUse::List resolveAttributeTermReferences(const XsdAttributeUse::List &attributeUses, XsdWildcard::Ptr &wildcard, QSet<QXmlName> visitedAttributeGroups);
+
+ /**
+ * Resolves the attribute inheritance of complex types.
+ *
+ * @note This method must be called after all base types have been resolved.
+ */
+ void resolveAttributeInheritance();
+
+ /**
+ * Resolves the attribute inheritance of the given complex types.
+ *
+ * @param complexType The complex type to resolve.
+ * @param visitedTypes A set of already resolved types, used for termination of recursion.
+ *
+ * @note This method must be called after all base types have been resolved.
+ */
+ void resolveAttributeInheritance(const XsdComplexType::Ptr &complexType, QSet<XsdComplexType::Ptr> &visitedTypes);
+
+ /**
+ * Resolves the enumeration facet values for QName and NOTATION based facets.
+ */
+ void resolveEnumerationFacetValues();
+
+ /**
+ * Returns the source location of the given schema @p component or a dummy
+ * source location if the component is not found in the component location hash.
+ */
+ QSourceLocation sourceLocation(const NamedSchemaComponent::Ptr component) const;
+
+ /**
+ * Returns the facets that are marked for the given complex @p type with a simple
+ * type restriction.
+ */
+ XsdFacet::Hash complexTypeFacets(const XsdComplexType::Ptr &complexType) const;
+
+ /**
+ * Finds the primitive type for the given simple @p type.
+ *
+ * The type is found by walking up the inheritance tree, until one of the builtin
+ * primitive type definitions is reached.
+ */
+ AnySimpleType::Ptr findPrimitiveType(const AnySimpleType::Ptr &type, QSet<AnySimpleType::Ptr> &visitedTypes);
+
+ /**
+ * Checks the redefined groups.
+ */
+ void checkRedefinedGroups();
+
+ /**
+ * Checks the redefined attribute groups.
+ */
+ void checkRedefinedAttributeGroups();
+
+ class KeyReference
+ {
+ public:
+ XsdElement::Ptr element;
+ XsdIdentityConstraint::Ptr keyRef;
+ QXmlName reference;
+ QSourceLocation location;
+ };
+
+ class SimpleRestrictionBase
+ {
+ public:
+ XsdSimpleType::Ptr simpleType;
+ QXmlName baseName;
+ QSourceLocation location;
+ };
+
+ class SimpleListType
+ {
+ public:
+ XsdSimpleType::Ptr simpleType;
+ QXmlName typeName;
+ QSourceLocation location;
+ };
+
+ class SimpleUnionType
+ {
+ public:
+ XsdSimpleType::Ptr simpleType;
+ QList<QXmlName> typeNames;
+ QSourceLocation location;
+ };
+
+ class ElementType
+ {
+ public:
+ XsdElement::Ptr element;
+ QXmlName typeName;
+ QSourceLocation location;
+ };
+
+ class ComplexBaseType
+ {
+ public:
+ XsdComplexType::Ptr complexType;
+ QXmlName baseName;
+ QSourceLocation location;
+ XsdFacet::Hash facets;
+ };
+
+ class ComplexContentType
+ {
+ public:
+ XsdComplexType::Ptr complexType;
+ XsdParticle::Ptr explicitContent;
+ bool effectiveMixed;
+ };
+
+ class AttributeType
+ {
+ public:
+ XsdAttribute::Ptr attribute;
+ QXmlName typeName;
+ QSourceLocation location;
+ };
+
+ class AlternativeType
+ {
+ public:
+ XsdAlternative::Ptr alternative;
+ QXmlName typeName;
+ QSourceLocation location;
+ };
+
+ class AlternativeTypeElement
+ {
+ public:
+ XsdAlternative::Ptr alternative;
+ XsdElement::Ptr element;
+ };
+
+ class SubstitutionGroupAffiliation
+ {
+ public:
+ XsdElement::Ptr element;
+ QList<QXmlName> elementNames;
+ QSourceLocation location;
+ };
+
+ class RedefinedGroups
+ {
+ public:
+ XsdModelGroup::Ptr redefinedGroup;
+ XsdModelGroup::Ptr group;
+ };
+
+ class RedefinedAttributeGroups
+ {
+ public:
+ XsdAttributeGroup::Ptr redefinedGroup;
+ XsdAttributeGroup::Ptr group;
+ };
+
+ QVector<KeyReference> m_keyReferences;
+ QVector<SimpleRestrictionBase> m_simpleRestrictionBases;
+ QVector<SimpleListType> m_simpleListTypes;
+ QVector<SimpleUnionType> m_simpleUnionTypes;
+ QVector<ElementType> m_elementTypes;
+ QVector<ComplexBaseType> m_complexBaseTypes;
+ QVector<ComplexContentType> m_complexContentTypes;
+ QVector<AttributeType> m_attributeTypes;
+ QVector<AlternativeType> m_alternativeTypes;
+ QVector<AlternativeTypeElement> m_alternativeTypeElements;
+ QVector<SubstitutionGroupAffiliation> m_substitutionGroupAffiliations;
+ QVector<XsdElement::Ptr> m_substitutionGroupTypes;
+ QVector<RedefinedGroups> m_redefinedGroups;
+ QVector<RedefinedAttributeGroups> m_redefinedAttributeGroups;
+ QHash<AtomicValue::Ptr, NamespaceSupport> m_enumerationFacetValues;
+ QSet<XsdReference::Ptr> m_allGroups;
+
+ QExplicitlySharedDataPointer<XsdSchemaContext> m_context;
+ QExplicitlySharedDataPointer<XsdSchemaChecker> m_checker;
+ NamePool::Ptr m_namePool;
+ XsdSchema::Ptr m_schema;
+ QHash<NamedSchemaComponent::Ptr, QSourceLocation> m_componentLocationHash;
+ XsdComplexType::OpenContent::Ptr m_defaultOpenContent;
+ bool m_defaultOpenContentAppliesToEmpty;
+ SchemaType::List m_predefinedSchemaTypes;
+ };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif