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****************************************************************************/

#ifndef QDECLARATIVEINSTRUCTION_P_H
#define QDECLARATIVEINSTRUCTION_P_H

//
//  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.
//

#include <QtCore/qglobal.h>

QT_BEGIN_NAMESPACE

class QDeclarativeCompiledData;
class Q_DECLARATIVE_EXPORT QDeclarativeInstruction
{
public:
    enum Type { 
        //
        // Object Creation
        //
        //    CreateObject - Create a new object instance and push it on the 
        //                   object stack
        //    SetId - Set the id of the object on the top of the object stack
        //    SetDefault - Sets the instance on the top of the object stack to
        //                 be the context's default object.
        //    StoreMetaObject - Assign the dynamic metaobject to object on the
        //                      top of the stack.
        Init,                     /* init */
        CreateObject,             /* create */
        CreateSimpleObject,       /* createSimple */
        SetId,                    /* setId */
        SetDefault,
        CreateComponent,          /* createComponent */
        StoreMetaObject,          /* storeMeta */

        //
        // Precomputed single assignment
        //
        //    StoreFloat - Store a float in a core property
        //    StoreDouble - Store a double in a core property
        //    StoreInteger - Store a int or uint in a core property
        //    StoreBool - Store a bool in a core property
        //    StoreString - Store a QString in a core property
        //    StoreUrl - Store a QUrl in a core property
        //    StoreColor - Store a QColor in a core property
        //    StoreDate - Store a QDate in a core property
        //    StoreTime - Store a QTime in a core property
        //    StoreDateTime - Store a QDateTime in a core property
        //    StoreVariant - Store a QVariant in a core property
        //    StoreObject - Pop the object on the top of the object stack and
        //                  store it in a core property
        StoreFloat,               /* storeFloat */
        StoreDouble,              /* storeDouble */
        StoreInteger,             /* storeInteger */
        StoreBool,                /* storeBool */
        StoreString,              /* storeString */
        StoreUrl,                 /* storeUrl */
        StoreColor,               /* storeColor */
        StoreDate,                /* storeDate */
        StoreTime,                /* storeTime */
        StoreDateTime,            /* storeDateTime */
        StorePoint,               /* storeRealPair */
        StorePointF,              /* storeRealPair */
        StoreSize,                /* storeRealPair */
        StoreSizeF,               /* storeRealPair */
        StoreRect,                /* storeRect */
        StoreRectF,               /* storeRect */
        StoreVector3D,            /* storeVector3D */
        StoreVariant,             /* storeString */
        StoreVariantInteger,      /* storeInteger */
        StoreVariantDouble,       /* storeDouble */
        StoreVariantBool,         /* storeBool */
        StoreObject,              /* storeObject */
        StoreVariantObject,       /* storeObject */
        StoreInterface,           /* storeObject */

        StoreSignal,              /* storeSignal */
        StoreImportedScript,      /* storeScript */
        StoreScriptString,        /* storeScriptString */

        //
        // Unresolved single assignment
        //
        AssignSignalObject,       /* assignSignalObject */
        AssignCustomType,         /* assignCustomType */

        StoreBinding,             /* assignBinding */
        StoreCompiledBinding,     /* assignBinding */
        StoreValueSource,         /* assignValueSource */
        StoreValueInterceptor,    /* assignValueInterceptor */

        BeginObject,              /* begin */

        StoreObjectQList,         /* NA */
        AssignObjectList,         /* NA */

        FetchAttached,            /* fetchAttached */
        FetchQList,               /* fetch */
        FetchObject,              /* fetch */
        FetchValueType,           /* fetchValue */

        //
        // Stack manipulation
        // 
        //    PopFetchedObject - Remove an object from the object stack
        //    PopQList - Remove a list from the list stack
        PopFetchedObject,
        PopQList,
        PopValueType,            /* fetchValue */

        // 
        // Deferred creation
        //
        Defer                    /* defer */
    };
    QDeclarativeInstruction()
        : line(0) {}

    Type type;
    unsigned short line;

    struct InitInstruction {
        int bindingsSize;
        int parserStatusSize;
        int contextCache;
        int compiledBinding;
    };
    struct CreateInstruction {
        int type;
        int data;
        int bindingBits;
        ushort column;
    };
    struct CreateSimpleInstruction {
        void (*create)(void *);
        int typeSize;
        ushort column;
    };
    struct StoreMetaInstruction {
        int data;
        int aliasData;
        int propertyCache;
    };
    struct SetIdInstruction {
        int value;
        int index;
    };
    struct AssignValueSourceInstruction {
        int property;
        int owner;
        int castValue;
    };
    struct AssignValueInterceptorInstruction {
        int property;
        int owner;
        int castValue;
    };
    struct AssignBindingInstruction {
        unsigned int property;
        int value;
        short context;
        short owner;
    };
    struct FetchInstruction {
        int property;
    };
    struct FetchValueInstruction {
        int property;
        int type;
    };
    struct FetchQmlListInstruction {
        int property;
        int type;
    };
    struct BeginInstruction {
        int castValue;
    }; 
    struct StoreFloatInstruction {
        int propertyIndex;
        float value;
    };
    struct StoreDoubleInstruction {
        int propertyIndex;
        double value;
    };
    struct StoreIntegerInstruction {
        int propertyIndex;
        int value;
    };
    struct StoreBoolInstruction {
        int propertyIndex;
        bool value;
    };
    struct StoreStringInstruction {
        int propertyIndex;
        int value;
    };
    struct StoreScriptStringInstruction {
        int propertyIndex;
        int value;
        int scope;
    }; 
    struct StoreScriptInstruction {
        int value;
    };
    struct StoreUrlInstruction {
        int propertyIndex;
        int value;
    };
    struct StoreColorInstruction {
        int propertyIndex;
        unsigned int value;
    };
    struct StoreDateInstruction {
        int propertyIndex;
        int value;
    };
    struct StoreTimeInstruction {
        int propertyIndex;
        int valueIndex;
    };
    struct StoreDateTimeInstruction {
        int propertyIndex;
        int valueIndex;
    };
    struct StoreRealPairInstruction {
        int propertyIndex;
        int valueIndex;
    };
    struct StoreRectInstruction {
        int propertyIndex;
        int valueIndex;
    };
    struct StoreVector3DInstruction {
        int propertyIndex;
        int valueIndex;
    };
    struct StoreObjectInstruction {
        int propertyIndex;
    };
    struct AssignCustomTypeInstruction {
        int propertyIndex;
        int valueIndex;
    };
    struct StoreSignalInstruction {
        int signalIndex;
        int value;
        int context;
    };
    struct AssignSignalObjectInstruction {
        int signal;
    };
    struct CreateComponentInstruction {
        int count;
        ushort column;
        int endLine;
        int metaObject;
    };
    struct FetchAttachedInstruction {
        int id;
    };
    struct DeferInstruction {
        int deferCount;
    };

    union {
        InitInstruction init;
        CreateInstruction create;
        CreateSimpleInstruction createSimple;
        StoreMetaInstruction storeMeta;
        SetIdInstruction setId;
        AssignValueSourceInstruction assignValueSource;
        AssignValueInterceptorInstruction assignValueInterceptor;
        AssignBindingInstruction assignBinding;
        FetchInstruction fetch;
        FetchValueInstruction fetchValue;
        FetchQmlListInstruction fetchQmlList;
        BeginInstruction begin;
        StoreFloatInstruction storeFloat;
        StoreDoubleInstruction storeDouble;
        StoreIntegerInstruction storeInteger;
        StoreBoolInstruction storeBool;
        StoreStringInstruction storeString;
        StoreScriptStringInstruction storeScriptString;
        StoreScriptInstruction storeScript;
        StoreUrlInstruction storeUrl;
        StoreColorInstruction storeColor;
        StoreDateInstruction storeDate;
        StoreTimeInstruction storeTime;
        StoreDateTimeInstruction storeDateTime;
        StoreRealPairInstruction storeRealPair;
        StoreRectInstruction storeRect;
        StoreVector3DInstruction storeVector3D;
        StoreObjectInstruction storeObject;
        AssignCustomTypeInstruction assignCustomType;
        StoreSignalInstruction storeSignal;
        AssignSignalObjectInstruction assignSignalObject;
        CreateComponentInstruction createComponent;
        FetchAttachedInstruction fetchAttached;
        DeferInstruction defer;
    };

    void dump(QDeclarativeCompiledData *);
};

QT_END_NAMESPACE

#endif // QDECLARATIVEINSTRUCTION_P_H