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#ifndef QQMLOBJECTCREATOR_P_H
#define QQMLOBJECTCREATOR_P_H

#include <private/qqmlimport_p.h>
#include <private/qqmltypenamecache_p.h>
#include <private/qv4compileddata_p.h>
#include <private/qqmlcompiler_p.h>
#include <QLinkedList>

QT_BEGIN_NAMESPACE

class QQmlAbstractBinding;

struct QQmlCompilePass
{
    QQmlCompilePass(const QUrl &url, const QV4::CompiledData::QmlUnit *unit);
    QList<QQmlError> errors;

protected:
    QString stringAt(int idx) const { return qmlUnit->header.stringAt(idx); }
    void recordError(const QV4::CompiledData::Location &location, const QString &description);

    const QUrl url;
    const QV4::CompiledData::QmlUnit *qmlUnit;
};

class QQmlPropertyCacheCreator : public QQmlCompilePass
{
    Q_DECLARE_TR_FUNCTIONS(QQmlPropertyCacheCreator)
public:
    QQmlPropertyCacheCreator(QQmlEnginePrivate *enginePrivate, const QV4::CompiledData::QmlUnit *qmlUnit,
                             const QUrl &url, const QQmlImports *imports,
                             QHash<int, QQmlCompiledData::TypeReference> *resolvedTypes);

    bool create(const QV4::CompiledData::Object *obj, QQmlPropertyCache **cache, QByteArray *vmeMetaObjectData);

protected:
    QQmlEnginePrivate *enginePrivate;
    const QQmlImports *imports;
    QHash<int, QQmlCompiledData::TypeReference> *resolvedTypes;
};

class QQmlComponentAndAliasResolver : public QQmlCompilePass
{
    Q_DECLARE_TR_FUNCTIONS(QQmlAnonymousComponentResolver)
public:
    QQmlComponentAndAliasResolver(const QUrl &url, const QV4::CompiledData::QmlUnit *qmlUnit,
                                   const QHash<int, QQmlCompiledData::TypeReference> &resolvedTypes,
                                   const QList<QQmlPropertyCache *> &propertyCaches,
                                   QList<QByteArray> *vmeMetaObjectData,
                                   QHash<int, int> *objectIndexToIdForRoot,
                                   QHash<int, QHash<int, int> > *objectIndexToIdPerComponent);

    bool resolve();

    QVector<int> componentRoots;
    QHash<int, int> objectIndexToComponentIndex;

protected:
    bool collectIdsAndAliases(int objectIndex);
    bool resolveAliases();

    bool isComponentType(int typeNameIndex) const
    { return resolvedTypes.value(typeNameIndex).type == 0; }

    int _componentIndex;
    QHash<int, int> _idToObjectIndex;
    QHash<int, int> *_objectIndexToIdInScope;
    QList<int> _objectsWithAliases;

    const QHash<int, QQmlCompiledData::TypeReference> resolvedTypes;
    const QList<QQmlPropertyCache *> propertyCaches;
    QList<QByteArray> *vmeMetaObjectData;
    QHash<int, int> *objectIndexToIdForRoot;
    QHash<int, QHash<int, int> > *objectIndexToIdPerComponent;
};

class QQmlPropertyValidator : public QQmlCompilePass
{
    Q_DECLARE_TR_FUNCTIONS(QQmlPropertyValidator)
public:
    QQmlPropertyValidator(const QUrl &url, const QV4::CompiledData::QmlUnit *qmlUnit,
                          const QHash<int, QQmlCompiledData::TypeReference> &resolvedTypes,
                          const QList<QQmlPropertyCache *> &propertyCaches,
                          const QHash<int, QHash<int, int> > &objectIndexToIdPerComponent);

    bool validate();

private:
    bool validateObject(const QV4::CompiledData::Object *obj, int objectIndex, QQmlPropertyCache *propertyCache);

    bool isComponent(int objectIndex) const { return objectIndexToIdPerComponent.contains(objectIndex); }

    const QHash<int, QQmlCompiledData::TypeReference> &resolvedTypes;
    const QList<QQmlPropertyCache *> &propertyCaches;
    const QHash<int, QHash<int, int> > objectIndexToIdPerComponent;
};

class QmlObjectCreator : public QQmlCompilePass
{
    Q_DECLARE_TR_FUNCTIONS(QmlObjectCreator)
public:
    QmlObjectCreator(QQmlContextData *contextData, QQmlCompiledData *compiledData);

    QObject *create(int subComponentIndex = -1, QObject *parent = 0);
    void finalize();

    QQmlComponentAttached *componentAttached;
    QList<QQmlEnginePrivate::FinalizeCallback> finalizeCallbacks;

private:
    QObject *createInstance(int index, QObject *parent = 0);

    bool populateInstance(int index, QObject *instance, QQmlRefPointer<QQmlPropertyCache> cache,
                          QObject *scopeObjectForJavaScript, QQmlPropertyData *valueTypeProperty);

    void setupBindings();
    bool setPropertyValue(QQmlPropertyData *property, int index, const QV4::CompiledData::Binding *binding);
    void setPropertyValue(QQmlPropertyData *property, const QV4::CompiledData::Binding *binding);
    void setupFunctions();

    QQmlEngine *engine;
    const QV4::CompiledData::CompilationUnit *jsUnit;
    QQmlContextData *parentContext;
    QQmlContextData *context;
    const QHash<int, QQmlCompiledData::TypeReference> resolvedTypes;
    const QList<QQmlPropertyCache *> propertyCaches;
    const QList<QByteArray> vmeMetaObjectData;
    QHash<int, int> objectIndexToId;
    QLinkedList<QVector<QQmlAbstractBinding*> > allCreatedBindings;
    QQmlCompiledData *compiledData;

    QObject *_qobject;
    QObject *_qobjectForBindings;
    QQmlPropertyData *_valueTypeProperty; // belongs to _qobjectForBindings's property cache
    const QV4::CompiledData::Object *_compiledObject;
    QQmlData *_ddata;
    QQmlRefPointer<QQmlPropertyCache> _propertyCache;
    QQmlVMEMetaObject *_vmeMetaObject;
    QVector<QQmlAbstractBinding*> _createdBindings;
    QQmlListProperty<void> _currentList;
    QV4::ExecutionContext *_qmlContext;
};

QT_END_NAMESPACE

#endif // QQMLOBJECTCREATOR_P_H