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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_XsdSchemaChecker_H
#define Patternist_XsdSchemaChecker_H
#include "qschematype_p.h"
#include "qxsdattribute_p.h"
#include "qxsdattributegroup_p.h"
#include "qxsdelement_p.h"
#include "qxsdmodelgroup_p.h"
#include "qxsdnotation_p.h"
#include "qxsdschema_p.h"
#include "qxsdsimpletype_p.h"
#include <QtCore/QExplicitlySharedDataPointer>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
class XsdSchemaContext;
class XsdSchemaParserContext;
/**
* @short Encapsulates the checking of schema valitity after reference resolving has finished.
*
* @ingroup Patternist_schema
* @author Tobias Koenig <tobias.koenig@trolltech.com>
*/
class XsdSchemaChecker : public QSharedData
{
public:
typedef QExplicitlySharedDataPointer<XsdSchemaChecker> Ptr;
/**
* Creates a new schema checker.
*
* @param context The context that is used for customization.
* @param parserContext The context that contains all the data structures.
*/
XsdSchemaChecker(const QExplicitlySharedDataPointer<XsdSchemaContext> &context, const XsdSchemaParserContext *parserContext);
/**
* Destroys the schema checker.
*/
~XsdSchemaChecker();
/**
* Starts a basic check process.
*
* This check only validates the basic super type inheritance
* of simple and complex types.
*/
void basicCheck();
/**
* Starts the real check process.
*/
void check();
/**
* Checks the constraining facets of all global and anonymous simple types for validity.
*/
void checkConstrainingFacets();
/**
* Adds the component location hash, so the checker is able to report meaning full
* error messages.
*/
void addComponentLocationHash(const QHash<NamedSchemaComponent::Ptr, QSourceLocation> &hash);
private:
void checkSimpleRestrictionBaseType();
/**
* Checks that no simple or complex type inherits itself.
*/
void checkBasicCircularInheritances();
/**
* Checks the advanced circular inheritance.
*/
void checkCircularInheritances();
/**
* Checks for inheritance restrictions given by final or finalDefault
* attributes.
*/
void checkInheritanceRestrictions();
/**
* Checks for various constraints for simple types defined by schema.
*/
void checkBasicSimpleTypeConstraints();
void checkSimpleTypeConstraints();
/**
* Checks for various constraints for complex types defined by schema.
*/
void checkBasicComplexTypeConstraints();
void checkComplexTypeConstraints();
/**
* Checks for list and union derivation restrictions given by final or finalDefault
* attributes.
*/
void checkSimpleDerivationRestrictions();
/**
* Checks the set of constraining @p facets that belongs to @p simpleType for validity.
*/
void checkConstrainingFacets(const XsdFacet::Hash &facets, const XsdSimpleType::Ptr &simpleType);
/**
* Checks for duplicated attribute uses (attributes with the same name) inside a complex type.
*/
void checkDuplicatedAttributeUses();
/**
* Check the element constraints.
*/
void checkElementConstraints();
/**
* Check the attribute constraints.
*/
void checkAttributeConstraints();
/**
* Check the attribute use constraints.
*/
void checkAttributeUseConstraints();
/**
* A map used to find duplicated elements inside a model group.
*/
typedef QHash<QXmlName, SchemaType::Ptr> DuplicatedElementMap;
/**
* A map used to find duplicated wildcards inside a model group.
*/
typedef QHash<XsdWildcard::NamespaceConstraint::Variety, XsdWildcard::Ptr> DuplicatedWildcardMap;
/**
* Check for duplicated elements and element wildcards in all complex type particles.
*/
void checkElementDuplicates();
/**
* Check for duplicated elements and element wildcards in the given @p particle.
*
* @param particle The particle to check.
* @param elementMap A map to find the duplicated elements.
* @param wildcardMap A map to find the duplicated element wildcards.
*/
void checkElementDuplicates(const XsdParticle::Ptr &particle, DuplicatedElementMap &elementMap, DuplicatedWildcardMap &wildcardMap);
/**
* Setup fast lookup list for allowed facets of atomic simple types.
*/
void setupAllowedAtomicFacets();
/**
* 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 source location of the given schema @p type or a dummy
* source location if the type is not found in the component location hash.
*/
QSourceLocation sourceLocationForType(const SchemaType::Ptr &type) const;
/**
* Checks that the string @p value is valid according the value space of @p type
* for the given @p component.
*/
bool isValidValue(const QString &value, const AnySimpleType::Ptr &type, QString &errorMsg) const;
/**
* Returns the list of facets for the given @p type.
*/
XsdFacet::Hash facetsForType(const SchemaType::Ptr &type) const;
/**
* Returns whether the given @p list of attribute uses contains two (or more) attribute
* uses that point to attributes with the same name. @p conflictingAttribute
* will contain the conflicting attribute in that case.
*/
bool hasDuplicatedAttributeUses(const XsdAttributeUse::List &list, XsdAttribute::Ptr &conflictingAttribute) const;
/**
* Returns whether the given @p list of attribute uses contains two (or more) attribute
* uses that have a type inherited by xs:ID.
*/
bool hasMultipleIDAttributeUses(const XsdAttributeUse::List &list) const;
/**
* Returns whether the given @p list of attribute uses contains an attribute
* uses that has a type inherited by xs:ID with a value constraint. @p conflictingAttribute
* will contain the conflicting attribute in that case.
*/
bool hasConstraintIDAttributeUse(const XsdAttributeUse::List &list, XsdAttribute::Ptr &conflictingAttribute) const;
/**
* Checks whether the @p particle equals the @p otherParticle recursively.
*/
bool particleEqualsRecursively(const XsdParticle::Ptr &particle, const XsdParticle::Ptr &otherParticle) const;
/**
* Checks whether the @p extension particle is a valid extension of the @p base particle.
*/
bool isValidParticleExtension(const XsdParticle::Ptr &extension, const XsdParticle::Ptr &base) const;
/**
* Checks whether the @p sequence of elements is accepted by the given @p particle.
*/
bool elementSequenceAccepted(const XsdModelGroup::Ptr &sequence, const XsdParticle::Ptr &particle) const;
QExplicitlySharedDataPointer<XsdSchemaContext> m_context;
NamePool::Ptr m_namePool;
XsdSchema::Ptr m_schema;
QHash<QXmlName, QSet<XsdFacet::Type> > m_allowedAtomicFacets;
QHash<NamedSchemaComponent::Ptr, QSourceLocation> m_componentLocationHash;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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