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

**

** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

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** This file is part of the QtCore module of the Qt Toolkit.

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** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this

** file. Please review the following information to ensure the GNU Lesser

** General Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights. These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** GNU General Public License Usage

** Alternatively, this file may be used under the terms of the GNU General

** Public License version 3.0 as published by the Free Software Foundation

** and appearing in the file LICENSE.GPL included in the packaging of this

** file. Please review the following information to ensure the GNU General

** Public License version 3.0 requirements will be met:

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

#ifndef QMETAOBJECT_P_H

#define QMETAOBJECT_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of moc.  This header file may change from version to version without notice,

// or even be removed.

//

// We mean it.

//

#include <QtCore/qglobal.h>

#include <QtCore/qobjectdefs.h>

QT_BEGIN_NAMESPACE

enum PropertyFlags  {

    Invalid = 0x00000000,

    Readable = 0x00000001,

    Writable = 0x00000002,

    Resettable = 0x00000004,

    EnumOrFlag = 0x00000008,

    StdCppSet = 0x00000100,

//     Override = 0x00000200,

    Constant = 0x00000400,

    Final = 0x00000800,

    Designable = 0x00001000,

    ResolveDesignable = 0x00002000,

    Scriptable = 0x00004000,

    ResolveScriptable = 0x00008000,

    Stored = 0x00010000,

    ResolveStored = 0x00020000,

    Editable = 0x00040000,

    ResolveEditable = 0x00080000,

    User = 0x00100000,

    ResolveUser = 0x00200000,

    Notify = 0x00400000,

    Revisioned = 0x00800000

};

enum MethodFlags  {

    AccessPrivate = 0x00,

    AccessProtected = 0x01,

    AccessPublic = 0x02,

    AccessMask = 0x03, //mask

    MethodMethod = 0x00,

    MethodSignal = 0x04,

    MethodSlot = 0x08,

    MethodConstructor = 0x0c,

    MethodTypeMask = 0x0c,

    MethodCompatibility = 0x10,

    MethodCloned = 0x20,

    MethodScriptable = 0x40,

    MethodRevisioned = 0x80

};

enum MetaObjectFlags {

    DynamicMetaObject = 0x01

};

class QMutex;

struct QMetaObjectPrivate

{

    int revision;

    int className;

    int classInfoCount, classInfoData;

    int methodCount, methodData;

    int propertyCount, propertyData;

    int enumeratorCount, enumeratorData;

    int constructorCount, constructorData; //since revision 2

    int flags; //since revision 3

    int signalCount; //since revision 4

    // revision 5 introduces changes in normalized signatures, no new members

    // revision 6 added qt_static_metacall as a member of each Q_OBJECT and inside QMetaObject itself

    static inline const QMetaObjectPrivate *get(const QMetaObject *metaobject)

    { return reinterpret_cast<const QMetaObjectPrivate*>(metaobject->d.data); }

    static int indexOfSignalRelative(const QMetaObject **baseObject,

                                     const char* name,

                                     bool normalizeStringData);

    static int indexOfSlotRelative(const QMetaObject **m,

                           const char *slot,

                           bool normalizeStringData);

    static int originalClone(const QMetaObject *obj, int local_method_index);

#ifndef QT_NO_QOBJECT

    //defined in qobject.cpp

    enum DisconnectType { DisconnectAll, DisconnectOne };

    static void memberIndexes(const QObject *obj, const QMetaMethod &member,

                              int *signalIndex, int *methodIndex);

    static bool connect(const QObject *sender, int signal_index,

                        const QObject *receiver, int method_index_relative,

                        const QMetaObject *rmeta = 0,

                        int type = 0, int *types = 0);

    static bool disconnect(const QObject *sender, int signal_index,

                           const QObject *receiver, int method_index,

                           DisconnectType = DisconnectAll);

    static inline bool disconnectHelper(QObjectPrivate::Connection *c,

                                        const QObject *receiver, int method_index,

                                        QMutex *senderMutex, DisconnectType);

#endif

};

#ifndef UTILS_H

// mirrored in moc's utils.h

static inline bool is_ident_char(char s)

{

    return ((s >= 'a' && s <= 'z')

            || (s >= 'A' && s <= 'Z')

            || (s >= '0' && s <= '9')

            || s == '_'

       );

}

static inline bool is_space(char s)

{

    return (s == ' ' || s == '\t');

}

#endif

// This code is shared with moc.cpp

static QByteArray normalizeTypeInternal(const char *t, const char *e, bool fixScope = false, bool adjustConst = true)

{

    int len = e - t;

    /*

      Convert 'char const *' into 'const char *'. Start at index 1,

      not 0, because 'const char *' is already OK.

    */

    QByteArray constbuf;

    for (int i = 1; i < len; i++) {

        if ( t[i] == 'c'

             && strncmp(t + i + 1, "onst", 4) == 0

             && (i + 5 >= len || !is_ident_char(t[i + 5]))

             && !is_ident_char(t[i-1])

             ) {

            constbuf = QByteArray(t, len);

            if (is_space(t[i-1]))

                constbuf.remove(i-1, 6);

            else

                constbuf.remove(i, 5);

            constbuf.prepend("const ");

            t = constbuf.data();

            e = constbuf.data() + constbuf.length();

            break;

        }

        /*

          We musn't convert 'char * const *' into 'const char **'

          and we must beware of 'Bar<const Bla>'.

        */

        if (t[i] == '&' || t[i] == '*' ||t[i] == '<')

            break;

    }

    if (adjustConst && e > t + 6 && strncmp("const ", t, 6) == 0) {

        if (*(e-1) == '&') { // treat const reference as value

            t += 6;

            --e;

        } else if (is_ident_char(*(e-1)) || *(e-1) == '>') { // treat const value as value

            t += 6;

        }

    }

    QByteArray result;

    result.reserve(len);

#if 1

    // consume initial 'const '

    if (strncmp("const ", t, 6) == 0) {

        t+= 6;

        result += "const ";

    }

#endif

    // some type substitutions for 'unsigned x'

    if (strncmp("unsigned", t, 8) == 0) {

        // make sure "unsigned" is an isolated word before making substitutions

        if (!t[8] || !is_ident_char(t[8])) {

            if (strncmp(" int", t+8, 4) == 0) {

                t += 8+4;

                result += "uint";

            } else if (strncmp(" long", t+8, 5) == 0) {

                if ((strlen(t + 8 + 5) < 4 || strncmp(t + 8 + 5, " int", 4) != 0) // preserve '[unsigned] long int'

                    && (strlen(t + 8 + 5) < 5 || strncmp(t + 8 + 5, " long", 5) != 0) // preserve '[unsigned] long long'

                   ) {

                    t += 8+5;

                    result += "ulong";

                }

            } else if (strncmp(" short", t+8, 6) != 0  // preserve unsigned short

                && strncmp(" char", t+8, 5) != 0) {    // preserve unsigned char

                //  treat rest (unsigned) as uint

                t += 8;

                result += "uint";

            }

        }

    } else {

        // discard 'struct', 'class', and 'enum'; they are optional

        // and we don't want them in the normalized signature

        struct {

            const char *keyword;

            int len;

        } optional[] = {

            { "struct ", 7 },

            { "class ", 6 },

            { "enum ", 5 },

            { 0, 0 }

        };

        int i = 0;

        do {

            if (strncmp(optional[i].keyword, t, optional[i].len) == 0) {

                t += optional[i].len;

                break;

            }

        } while (optional[++i].keyword != 0);

    }

    bool star = false;

    while (t != e) {

        char c = *t++;

        if (fixScope && c == ':' && *t == ':' ) {

            ++t;

            c = *t++;

            int i = result.size() - 1;

            while (i >= 0 && is_ident_char(result.at(i)))

                --i;

            result.resize(i + 1);

        }

        star = star || c == '*';

        result += c;

        if (c == '<') {

            //template recursion

            const char* tt = t;

            int templdepth = 1;

            while (t != e) {

                c = *t++;

                if (c == '<')

                    ++templdepth;

                if (c == '>')

                    --templdepth;

                if (templdepth == 0 || (templdepth == 1 && c == ',')) {

                    result += normalizeTypeInternal(tt, t-1, fixScope, false);

                    result += c;

                    if (templdepth == 0) {

                        if (*t == '>')

                            result += ' '; // avoid >>

                        break;

                    }

                    tt = t;

                }

            }

        }

        // cv qualifers can appear after the type as well

        if (!is_ident_char(c) && t != e && (e - t >= 5 && strncmp("const", t, 5) == 0)

            && (e - t == 5 || !is_ident_char(t[5]))) {

            t += 5;

            while (t != e && is_space(*t))

                ++t;

            if (adjustConst && t != e && *t == '&') {

                // treat const ref as value

                ++t;

            } else if (adjustConst && !star) {

                // treat const as value

            } else if (!star) {

                // move const to the front (but not if const comes after a *)

                result.prepend("const ");

            } else {

                // keep const after a *

                result += "const";

            }

        }

    }

    return result;

}

QT_END_NAMESPACE

#endif