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path: root/src/tools/moc/moc.cpp
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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "moc.h"
#include "generator.h"
#include "qdatetime.h"
#include "utils.h"
#include "outputrevision.h"

// for normalizeTypeInternal
#include <private/qmetaobject_p.h>

QT_BEGIN_NAMESPACE

// only moc needs this function
static QByteArray normalizeType(const char *s, bool fixScope = false)
{
    int len = qstrlen(s);
    char stackbuf[64];
    char *buf = (len >= 64 ? new char[len + 1] : stackbuf);
    char *d = buf;
    char last = 0;
    while(*s && is_space(*s))
        s++;
    while (*s) {
        while (*s && !is_space(*s))
            last = *d++ = *s++;
        while (*s && is_space(*s))
            s++;
        if (*s && ((is_ident_char(*s) && is_ident_char(last))
                   || ((*s == ':') && (last == '<')))) {
            last = *d++ = ' ';
        }
    }
    *d = '\0';
    QByteArray result;
    if (strncmp("void", buf, d - buf) != 0)
        result = normalizeTypeInternal(buf, d, fixScope);
    if (buf != stackbuf)
        delete [] buf;
    return result;
}

bool Moc::parseClassHead(ClassDef *def)
{
    // figure out whether this is a class declaration, or only a
    // forward or variable declaration.
    int i = 0;
    Token token;
    do {
        token = lookup(i++);
        if (token == COLON || token == LBRACE)
            break;
        if (token == SEMIC || token == RANGLE)
            return false;
    } while (token);

    if (!test(IDENTIFIER)) // typedef struct { ... }
        return false;
    QByteArray name = lexem();

    // support "class IDENT name" and "class IDENT(IDENT) name"
    if (test(LPAREN)) {
        until(RPAREN);
        if (!test(IDENTIFIER))
            return false;
        name = lexem();
    } else  if (test(IDENTIFIER)) {
        name = lexem();
    }

    def->qualified += name;
    while (test(SCOPE)) {
        def->qualified += lexem();
        if (test(IDENTIFIER)) {
            name = lexem();
            def->qualified += name;
        }
    }
    def->classname = name;
    if (test(COLON)) {
        do {
            test(VIRTUAL);
            FunctionDef::Access access = FunctionDef::Public;
            if (test(PRIVATE))
                access = FunctionDef::Private;
            else if (test(PROTECTED))
                access = FunctionDef::Protected;
            else
                test(PUBLIC);
            test(VIRTUAL);
            const QByteArray type = parseType().name;
            // ignore the 'class Foo : BAR(Baz)' case
            if (test(LPAREN)) {
                until(RPAREN);
            } else {
                def->superclassList += qMakePair(type, access);
            }
        } while (test(COMMA));
    }
    if (!test(LBRACE))
        return false;
    def->begin = index - 1;
    bool foundRBrace = until(RBRACE);
    def->end = index;
    index = def->begin + 1;
    return foundRBrace;
}

Type Moc::parseType()
{
    Type type;
    bool hasSignedOrUnsigned = false;
    bool isVoid = false;
    type.firstToken = lookup();
    for (;;) {
        switch (next()) {
            case SIGNED:
            case UNSIGNED:
                hasSignedOrUnsigned = true;
                // fall through
            case CONST:
            case VOLATILE:
                type.name += lexem();
                type.name += ' ';
                if (lookup(0) == VOLATILE)
                    type.isVolatile = true;
                continue;
            case Q_MOC_COMPAT_TOKEN:
            case Q_QT3_SUPPORT_TOKEN:
            case Q_INVOKABLE_TOKEN:
            case Q_SCRIPTABLE_TOKEN:
            case Q_SIGNALS_TOKEN:
            case Q_SLOTS_TOKEN:
            case Q_SIGNAL_TOKEN:
            case Q_SLOT_TOKEN:
                type.name += lexem();
                return type;
            default:
                prev();
                break;
        }
        break;
    }
    test(ENUM) || test(CLASS) || test(STRUCT);
    for(;;) {
        switch (next()) {
        case IDENTIFIER:
            // void mySlot(unsigned myArg)
            if (hasSignedOrUnsigned) {
                prev();
                break;
            }
        case CHAR:
        case SHORT:
        case INT:
        case LONG:
            type.name += lexem();
            // preserve '[unsigned] long long', 'short int', 'long int', 'long double'
            if (test(LONG) || test(INT) || test(DOUBLE)) {
                type.name += ' ';
                prev();
                continue;
            }
            break;
        case FLOAT:
        case DOUBLE:
        case VOID:
        case BOOL:
            type.name += lexem();
            isVoid |= (lookup(0) == VOID);
            break;
        default:
            prev();
            ;
        }
        if (test(LANGLE)) {
            QByteArray templ = lexemUntil(RANGLE);
            for (int i = 0; i < templ.size(); ++i) {
                type.name += templ.at(i);
                if ((templ.at(i) == '<' && i < templ.size()-1 && templ.at(i+1) == ':')
                    || (templ.at(i) == '>' && i < templ.size()-1 && templ.at(i+1) == '>')) {
                    type.name += ' ';
                }
            }
        }
        if (test(SCOPE)) {
            type.name += lexem();
            type.isScoped = true;
        } else {
            break;
        }
    }
    while (test(CONST) || test(VOLATILE) || test(SIGNED) || test(UNSIGNED)
           || test(STAR) || test(AND) || test(ANDAND)) {
        type.name += ' ';
        type.name += lexem();
        if (lookup(0) == AND)
            type.referenceType = Type::Reference;
        else if (lookup(0) == ANDAND)
            type.referenceType = Type::RValueReference;
        else if (lookup(0) == STAR)
            type.referenceType = Type::Pointer;
    }
    // transform stupid things like 'const void' or 'void const' into 'void'
    if (isVoid && type.referenceType == Type::NoReference) {
        type.name = "void";
    }
    return type;
}

bool Moc::parseEnum(EnumDef *def)
{
    bool isTypdefEnum = false; // typedef enum { ... } Foo;

    if (test(IDENTIFIER)) {
        def->name = lexem();
    } else {
        if (lookup(-1) != TYPEDEF)
            return false; // anonymous enum
        isTypdefEnum = true;
    }
    if (!test(LBRACE))
        return false;
    do {
        if (lookup() == RBRACE) // accept trailing comma
            break;
        next(IDENTIFIER);
        def->values += lexem();
    } while (test(EQ) ? until(COMMA) : test(COMMA));
    next(RBRACE);
    if (isTypdefEnum) {
        if (!test(IDENTIFIER))
            return false;
        def->name = lexem();
    }
    return true;
}

void Moc::parseFunctionArguments(FunctionDef *def)
{
    Q_UNUSED(def);
    while (hasNext()) {
        ArgumentDef  arg;
        arg.type = parseType();
        if (arg.type.name == "void")
            break;
        if (test(IDENTIFIER))
            arg.name = lexem();
        while (test(LBRACK)) {
            arg.rightType += lexemUntil(RBRACK);
        }
        if (test(CONST) || test(VOLATILE)) {
            arg.rightType += ' ';
            arg.rightType += lexem();
        }
        arg.normalizedType = normalizeType(arg.type.name + ' ' + arg.rightType);
        arg.typeNameForCast = normalizeType(noRef(arg.type.name) + "(*)" + arg.rightType);
        if (test(EQ))
            arg.isDefault = true;
        def->arguments += arg;
        if (!until(COMMA))
            break;
    }
}

bool Moc::testFunctionAttribute(FunctionDef *def)
{
    if (index < symbols.size() && testFunctionAttribute(symbols.at(index).token, def)) {
        ++index;
        return true;
    }
    return false;
}

bool Moc::testFunctionAttribute(Token tok, FunctionDef *def)
{
    switch (tok) {
        case Q_MOC_COMPAT_TOKEN:
        case Q_QT3_SUPPORT_TOKEN:
            def->isCompat = true;
            return true;
        case Q_INVOKABLE_TOKEN:
            def->isInvokable = true;
            return true;
        case Q_SIGNAL_TOKEN:
            def->isSignal = true;
            return true;
        case Q_SLOT_TOKEN:
            def->isSlot = true;
            return true;
        case Q_SCRIPTABLE_TOKEN:
            def->isInvokable = def->isScriptable = true;
            return true;
        default: break;
    }
    return false;
}

bool Moc::testFunctionRevision(FunctionDef *def)
{
    if (test(Q_REVISION_TOKEN)) {
        next(LPAREN);
        QByteArray revision = lexemUntil(RPAREN);
        revision.remove(0, 1);
        revision.chop(1);
        bool ok = false;
        def->revision = revision.toInt(&ok);
        if (!ok || def->revision < 0)
            error("Invalid revision");
        return true;
    }

    return false;
}

// returns false if the function should be ignored
bool Moc::parseFunction(FunctionDef *def, bool inMacro)
{
    def->isVirtual = false;
    //skip modifiers and attributes
    while (test(INLINE) || test(STATIC) ||
        (test(VIRTUAL) && (def->isVirtual = true)) //mark as virtual
        || testFunctionAttribute(def) || testFunctionRevision(def)) {}
    bool templateFunction = (lookup() == TEMPLATE);
    def->type = parseType();
    if (def->type.name.isEmpty()) {
        if (templateFunction)
            error("Template function as signal or slot");
        else
            error();
    }
    bool scopedFunctionName = false;
    if (test(LPAREN)) {
        def->name = def->type.name;
        scopedFunctionName = def->type.isScoped;
        def->type = Type("int");
    } else {
        Type tempType = parseType();;
        while (!tempType.name.isEmpty() && lookup() != LPAREN) {
            if (testFunctionAttribute(def->type.firstToken, def))
                ; // fine
            else if (def->type.firstToken == Q_SIGNALS_TOKEN)
                error();
            else if (def->type.firstToken == Q_SLOTS_TOKEN)
                error();
            else {
                if (!def->tag.isEmpty())
                    def->tag += ' ';
                def->tag += def->type.name;
            }
            def->type = tempType;
            tempType = parseType();
        }
        next(LPAREN, "Not a signal or slot declaration");
        def->name = tempType.name;
        scopedFunctionName = tempType.isScoped;
    }

    // we don't support references as return types, it's too dangerous
    if (def->type.referenceType == Type::Reference)
        def->type = Type("void");

    def->normalizedType = normalizeType(def->type.name);

    if (!test(RPAREN)) {
        parseFunctionArguments(def);
        next(RPAREN);
    }

    // support optional macros with compiler specific options
    while (test(IDENTIFIER))
        ;

    def->isConst = test(CONST);

    while (test(IDENTIFIER))
        ;

    if (inMacro) {
        next(RPAREN);
        prev();
    } else {
        if (test(THROW)) {
            next(LPAREN);
            until(RPAREN);
        }
        if (test(SEMIC))
            ;
        else if ((def->inlineCode = test(LBRACE)))
            until(RBRACE);
        else if ((def->isAbstract = test(EQ)))
            until(SEMIC);
        else
            error();
    }

    if (scopedFunctionName) {
        QByteArray msg("Function declaration ");
        msg += def->name;
        msg += " contains extra qualification. Ignoring as signal or slot.";
        warning(msg.constData());
        return false;
    }
    return true;
}

// like parseFunction, but never aborts with an error
bool Moc::parseMaybeFunction(const ClassDef *cdef, FunctionDef *def)
{
    def->isVirtual = false;
    //skip modifiers and attributes
    while (test(EXPLICIT) || test(INLINE) || test(STATIC) ||
        (test(VIRTUAL) && (def->isVirtual = true)) //mark as virtual
        || testFunctionAttribute(def) || testFunctionRevision(def)) {}
    bool tilde = test(TILDE);
    def->type = parseType();
    if (def->type.name.isEmpty())
        return false;
    bool scopedFunctionName = false;
    if (test(LPAREN)) {
        def->name = def->type.name;
        scopedFunctionName = def->type.isScoped;
        if (def->name == cdef->classname) {
            def->isDestructor = tilde;
            def->isConstructor = !tilde;
            def->type = Type();
        } else {
            def->type = Type("int");
        }
    } else {
        Type tempType = parseType();;
        while (!tempType.name.isEmpty() && lookup() != LPAREN) {
            if (testFunctionAttribute(def->type.firstToken, def))
                ; // fine
            else if (def->type.name == "Q_SIGNAL")
                def->isSignal = true;
            else if (def->type.name == "Q_SLOT")
                def->isSlot = true;
            else {
                if (!def->tag.isEmpty())
                    def->tag += ' ';
                def->tag += def->type.name;
            }
            def->type = tempType;
            tempType = parseType();
        }
        if (!test(LPAREN))
            return false;
        def->name = tempType.name;
        scopedFunctionName = tempType.isScoped;
    }

    // we don't support references as return types, it's too dangerous
    if (def->type.referenceType == Type::Reference)
        def->type = Type("void");

    def->normalizedType = normalizeType(def->type.name);

    if (!test(RPAREN)) {
        parseFunctionArguments(def);
        if (!test(RPAREN))
            return false;
    }
    def->isConst = test(CONST);
    if (scopedFunctionName
        && (def->isSignal || def->isSlot || def->isInvokable)) {
        QByteArray msg("parsemaybe: Function declaration ");
        msg += def->name;
        msg += " contains extra qualification. Ignoring as signal or slot.";
        warning(msg.constData());
        return false;
    }
    return true;
}


void Moc::parse()
{
    QList<NamespaceDef> namespaceList;
    bool templateClass = false;
    while (hasNext()) {
        Token t = next();
        switch (t) {
            case NAMESPACE: {
                int rewind = index;
                if (test(IDENTIFIER)) {
                    if (test(EQ)) {
                        // namespace Foo = Bar::Baz;
                        until(SEMIC);
                    } else if (!test(SEMIC)) {
                        NamespaceDef def;
                        def.name = lexem();
                        next(LBRACE);
                        def.begin = index - 1;
                        until(RBRACE);
                        def.end = index;
                        index = def.begin + 1;
                        namespaceList += def;
                        index = rewind;
                    }
                }
                break;
            }
            case SEMIC:
            case RBRACE:
                templateClass = false;
                break;
            case TEMPLATE:
                templateClass = true;
                break;
            case MOC_INCLUDE_BEGIN:
                currentFilenames.push(symbol().unquotedLexem());
                break;
            case MOC_INCLUDE_END:
                currentFilenames.pop();
                break;
            case Q_DECLARE_INTERFACE_TOKEN:
                parseDeclareInterface();
                break;
            case Q_DECLARE_METATYPE_TOKEN:
                parseDeclareMetatype();
                break;
            case USING:
                if (test(NAMESPACE)) {
                    while (test(SCOPE) || test(IDENTIFIER))
                        ;
                    next(SEMIC);
                }
                break;
            case CLASS:
            case STRUCT: {
                if (currentFilenames.size() <= 1)
                    break;

                ClassDef def;
                if (!parseClassHead(&def))
                    continue;

                while (inClass(&def) && hasNext()) {
                    if (next() == Q_OBJECT_TOKEN) {
                        def.hasQObject = true;
                        break;
                    }
                }

                if (!def.hasQObject)
                    continue;

                for (int i = namespaceList.size() - 1; i >= 0; --i)
                    if (inNamespace(&namespaceList.at(i)))
                        def.qualified.prepend(namespaceList.at(i).name + "::");

                knownQObjectClasses.insert(def.classname);
                knownQObjectClasses.insert(def.qualified);

                continue; }
            default: break;
        }
        if ((t != CLASS && t != STRUCT)|| currentFilenames.size() > 1)
            continue;
        ClassDef def;
        if (parseClassHead(&def)) {
            FunctionDef::Access access = FunctionDef::Private;
            for (int i = namespaceList.size() - 1; i >= 0; --i)
                if (inNamespace(&namespaceList.at(i)))
                    def.qualified.prepend(namespaceList.at(i).name + "::");
            while (inClass(&def) && hasNext()) {
                switch ((t = next())) {
                case PRIVATE:
                    access = FunctionDef::Private;
                    if (test(Q_SIGNALS_TOKEN))
                        error("Signals cannot have access specifier");
                    break;
                case PROTECTED:
                    access = FunctionDef::Protected;
                    if (test(Q_SIGNALS_TOKEN))
                        error("Signals cannot have access specifier");
                    break;
                case PUBLIC:
                    access = FunctionDef::Public;
                    if (test(Q_SIGNALS_TOKEN))
                        error("Signals cannot have access specifier");
                    break;
                case CLASS: {
                    ClassDef nestedDef;
                    if (parseClassHead(&nestedDef)) {
                        while (inClass(&nestedDef) && inClass(&def)) {
                            t = next();
                            if (t >= Q_META_TOKEN_BEGIN && t < Q_META_TOKEN_END)
                                error("Meta object features not supported for nested classes");
                        }
                    }
                } break;
                case Q_SIGNALS_TOKEN:
                    parseSignals(&def);
                    break;
                case Q_SLOTS_TOKEN:
                    switch (lookup(-1)) {
                    case PUBLIC:
                    case PROTECTED:
                    case PRIVATE:
                        parseSlots(&def, access);
                        break;
                    default:
                        error("Missing access specifier for slots");
                    }
                    break;
                case Q_OBJECT_TOKEN:
                    def.hasQObject = true;
                    if (templateClass)
                        error("Template classes not supported by Q_OBJECT");
                    if (def.classname != "Qt" && def.classname != "QObject" && def.superclassList.isEmpty())
                        error("Class contains Q_OBJECT macro but does not inherit from QObject");
                    break;
                case Q_GADGET_TOKEN:
                    def.hasQGadget = true;
                    if (templateClass)
                        error("Template classes not supported by Q_GADGET");
                    break;
                case Q_PROPERTY_TOKEN:
                    parseProperty(&def);
                    break;
                case Q_ENUMS_TOKEN:
                    parseEnumOrFlag(&def, false);
                    break;
                case Q_FLAGS_TOKEN:
                    parseEnumOrFlag(&def, true);
                    break;
                case Q_DECLARE_FLAGS_TOKEN:
                    parseFlag(&def);
                    break;
                case Q_CLASSINFO_TOKEN:
                    parseClassInfo(&def);
                    break;
                case Q_INTERFACES_TOKEN:
                    parseInterfaces(&def);
                    break;
                case Q_PRIVATE_SLOT_TOKEN:
                    parseSlotInPrivate(&def, access);
                    break;
                case Q_PRIVATE_PROPERTY_TOKEN:
                    parsePrivateProperty(&def);
                    break;
                case ENUM: {
                    EnumDef enumDef;
                    if (parseEnum(&enumDef))
                        def.enumList += enumDef;
                } break;
                default:
                    FunctionDef funcDef;
                    funcDef.access = access;
                    int rewind = index;
                    if (parseMaybeFunction(&def, &funcDef)) {
                        if (funcDef.isConstructor) {
                            if ((access == FunctionDef::Public) && funcDef.isInvokable) {
                                def.constructorList += funcDef;
                                while (funcDef.arguments.size() > 0 && funcDef.arguments.last().isDefault) {
                                    funcDef.wasCloned = true;
                                    funcDef.arguments.removeLast();
                                    def.constructorList += funcDef;
                                }
                            }
                        } else if (funcDef.isDestructor) {
                            // don't care about destructors
                        } else {
                            if (access == FunctionDef::Public)
                                def.publicList += funcDef;
                            if (funcDef.isSlot) {
                                def.slotList += funcDef;
                                while (funcDef.arguments.size() > 0 && funcDef.arguments.last().isDefault) {
                                    funcDef.wasCloned = true;
                                    funcDef.arguments.removeLast();
                                    def.slotList += funcDef;
                                }
                                if (funcDef.revision > 0)
                                    ++def.revisionedMethods;
                            } else if (funcDef.isSignal) {
                                def.signalList += funcDef;
                                while (funcDef.arguments.size() > 0 && funcDef.arguments.last().isDefault) {
                                    funcDef.wasCloned = true;
                                    funcDef.arguments.removeLast();
                                    def.signalList += funcDef;
                                }
                                if (funcDef.revision > 0)
                                    ++def.revisionedMethods;
                            } else if (funcDef.isInvokable) {
                                def.methodList += funcDef;
                                while (funcDef.arguments.size() > 0 && funcDef.arguments.last().isDefault) {
                                    funcDef.wasCloned = true;
                                    funcDef.arguments.removeLast();
                                    def.methodList += funcDef;
                                }
                                if (funcDef.revision > 0)
                                    ++def.revisionedMethods;
                            }
                        }
                    } else {
                        index = rewind;
                    }
                }
            }

            next(RBRACE);

            if (!def.hasQObject && !def.hasQGadget && def.signalList.isEmpty() && def.slotList.isEmpty()
                && def.propertyList.isEmpty() && def.enumDeclarations.isEmpty())
                continue; // no meta object code required


            if (!def.hasQObject && !def.hasQGadget)
                error("Class declarations lacks Q_OBJECT macro.");

            checkSuperClasses(&def);
            checkProperties(&def);

            classList += def;
            knownQObjectClasses.insert(def.classname);
            knownQObjectClasses.insert(def.qualified);
        }
    }
}

void Moc::generate(FILE *out)
{

    QDateTime dt = QDateTime::currentDateTime();
    QByteArray dstr = dt.toString().toLatin1();
    QByteArray fn = filename;
    int i = filename.length()-1;
    while (i>0 && filename[i-1] != '/' && filename[i-1] != '\\')
        --i;                                // skip path
    if (i >= 0)
        fn = filename.mid(i);
    fprintf(out, "/****************************************************************************\n"
            "** Meta object code from reading C++ file '%s'\n**\n" , (const char*)fn);
    fprintf(out, "** Created: %s\n"
            "**      by: The Qt Meta Object Compiler version %d (Qt %s)\n**\n" , dstr.data(), mocOutputRevision, QT_VERSION_STR);
    fprintf(out, "** WARNING! All changes made in this file will be lost!\n"
            "*****************************************************************************/\n\n");


    if (!noInclude) {
        if (includePath.size() && !includePath.endsWith('/'))
            includePath += '/';
        for (int i = 0; i < includeFiles.size(); ++i) {
            QByteArray inc = includeFiles.at(i);
            if (inc[0] != '<' && inc[0] != '"') {
                if (includePath.size() && includePath != "./")
                    inc.prepend(includePath);
                inc = '\"' + inc + '\"';
            }
            fprintf(out, "#include %s\n", inc.constData());
        }
    }
    if (classList.size() && classList.first().classname == "Qt")
        fprintf(out, "#include <QtCore/qobject.h>\n");

    if (mustIncludeQMetaTypeH)
        fprintf(out, "#include <QtCore/qmetatype.h>\n");

    fprintf(out, "#if !defined(Q_MOC_OUTPUT_REVISION)\n"
            "#error \"The header file '%s' doesn't include <QObject>.\"\n", (const char *)fn);
    fprintf(out, "#elif Q_MOC_OUTPUT_REVISION != %d\n", mocOutputRevision);
    fprintf(out, "#error \"This file was generated using the moc from %s."
            " It\"\n#error \"cannot be used with the include files from"
            " this version of Qt.\"\n#error \"(The moc has changed too"
            " much.)\"\n", QT_VERSION_STR);
    fprintf(out, "#endif\n\n");

    fprintf(out, "QT_BEGIN_MOC_NAMESPACE\n");

    for (i = 0; i < classList.size(); ++i) {
        Generator generator(&classList[i], metaTypes, out);
        generator.generateCode();
    }

    fprintf(out, "QT_END_MOC_NAMESPACE\n");
}


QList<QMetaObject*> Moc::generate(bool ignoreProperties)
{
    QList<QMetaObject*> result;
    for (int i = 0; i < classList.size(); ++i) {
        Generator generator(&classList[i], metaTypes);
        result << generator.generateMetaObject(ignoreProperties);
    }
    return result;
}

void Moc::parseSlots(ClassDef *def, FunctionDef::Access access)
{
    int defaultRevision = -1;
    if (test(Q_REVISION_TOKEN)) {
        next(LPAREN);
        QByteArray revision = lexemUntil(RPAREN);
        revision.remove(0, 1);
        revision.chop(1);
        bool ok = false;
        defaultRevision = revision.toInt(&ok);
        if (!ok || defaultRevision < 0)
            error("Invalid revision");
    }

    next(COLON);
    while (inClass(def) && hasNext()) {
        switch (next()) {
        case PUBLIC:
        case PROTECTED:
        case PRIVATE:
        case Q_SIGNALS_TOKEN:
        case Q_SLOTS_TOKEN:
            prev();
            return;
        case SEMIC:
            continue;
        case FRIEND:
            until(SEMIC);
            continue;
        case USING:
            error("'using' directive not supported in 'slots' section");
        default:
            prev();
        }

        FunctionDef funcDef;
        funcDef.access = access;
        if (!parseFunction(&funcDef))
            continue;
        if (funcDef.revision > 0) {
            ++def->revisionedMethods;
        } else if (defaultRevision != -1) {
            funcDef.revision = defaultRevision;
            ++def->revisionedMethods;
        }
        def->slotList += funcDef;
        while (funcDef.arguments.size() > 0 && funcDef.arguments.last().isDefault) {
            funcDef.wasCloned = true;
            funcDef.arguments.removeLast();
            def->slotList += funcDef;
        }
    }
}

void Moc::parseSignals(ClassDef *def)
{
    int defaultRevision = -1;
    if (test(Q_REVISION_TOKEN)) {
        next(LPAREN);
        QByteArray revision = lexemUntil(RPAREN);
        revision.remove(0, 1);
        revision.chop(1);
        bool ok = false;
        defaultRevision = revision.toInt(&ok);
        if (!ok || defaultRevision < 0)
            error("Invalid revision");
    }

    next(COLON);
    while (inClass(def) && hasNext()) {
        switch (next()) {
        case PUBLIC:
        case PROTECTED:
        case PRIVATE:
        case Q_SIGNALS_TOKEN:
        case Q_SLOTS_TOKEN:
            prev();
            return;
        case SEMIC:
            continue;
        case FRIEND:
            until(SEMIC);
            continue;
        case USING:
            error("'using' directive not supported in 'signals' section");
        default:
            prev();
        }
        FunctionDef funcDef;
        funcDef.access = FunctionDef::Protected;
        parseFunction(&funcDef);
        if (funcDef.isVirtual)
            warning("Signals cannot be declared virtual");
        if (funcDef.inlineCode)
            error("Not a signal declaration");
        if (funcDef.revision > 0) {
            ++def->revisionedMethods;
        } else if (defaultRevision != -1) {
            funcDef.revision = defaultRevision;
            ++def->revisionedMethods;
        }
        def->signalList += funcDef;
        while (funcDef.arguments.size() > 0 && funcDef.arguments.last().isDefault) {
            funcDef.wasCloned = true;
            funcDef.arguments.removeLast();
            def->signalList += funcDef;
        }
    }
}

void Moc::createPropertyDef(PropertyDef &propDef)
{
    QByteArray type = parseType().name;
    if (type.isEmpty())
        error();
    propDef.designable = propDef.scriptable = propDef.stored = "true";
    propDef.user = "false";
    /*
      The Q_PROPERTY construct cannot contain any commas, since
      commas separate macro arguments. We therefore expect users
      to type "QMap" instead of "QMap<QString, QVariant>". For
      coherence, we also expect the same for
      QValueList<QVariant>, the other template class supported by
      QVariant.
    */
    type = normalizeType(type);
    if (type == "QMap")
        type = "QMap<QString,QVariant>";
    else if (type == "QValueList")
        type = "QValueList<QVariant>";
    else if (type == "LongLong")
        type = "qlonglong";
    else if (type == "ULongLong")
        type = "qulonglong";
    else if (type == "qreal")
        mustIncludeQMetaTypeH = true;

    propDef.type = type;

    next();
    propDef.name = lexem();
    while (test(IDENTIFIER)) {
        QByteArray l = lexem();
        if (l[0] == 'C' && l == "CONSTANT") {
            propDef.constant = true;
            continue;
        } else if(l[0] == 'F' && l == "FINAL") {
            propDef.final = true;
            continue;
        }

        QByteArray v, v2;
        if (test(LPAREN)) {
            v = lexemUntil(RPAREN);
        } else if (test(INTEGER_LITERAL)) {
            v = lexem();
            if (l != "REVISION")
                error(1);
        } else {
            next(IDENTIFIER);
            v = lexem();
            if (test(LPAREN))
                v2 = lexemUntil(RPAREN);
            else if (v != "true" && v != "false")
                v2 = "()";
        }
        switch (l[0]) {
        case 'R':
            if (l == "READ")
                propDef.read = v;
            else if (l == "RESET")
                propDef.reset = v + v2;
            else if (l == "REVISION") {
                bool ok = false;
                propDef.revision = v.toInt(&ok);
                if (!ok || propDef.revision < 0)
                    error(1);
            } else
                error(2);
            break;
        case 'S':
            if (l == "SCRIPTABLE")
                propDef.scriptable = v + v2;
            else if (l == "STORED")
                propDef.stored = v + v2;
            else
                error(2);
            break;
        case 'W': if (l != "WRITE") error(2);
            propDef.write = v;
            break;
        case 'D': if (l != "DESIGNABLE") error(2);
            propDef.designable = v + v2;
            break;
        case 'E': if (l != "EDITABLE") error(2);
            propDef.editable = v + v2;
            break;
        case 'N': if (l != "NOTIFY") error(2);
            propDef.notify = v;
            break;
        case 'U': if (l != "USER") error(2);
            propDef.user = v + v2;
            break;
        default:
            error(2);
        }
    }
    if (propDef.read.isNull()) {
        QByteArray msg;
        msg += "Property declaration ";
        msg += propDef.name;
        msg += " has no READ accessor function. The property will be invalid.";
        warning(msg.constData());
    }
    if (propDef.constant && !propDef.write.isNull()) {
        QByteArray msg;
        msg += "Property declaration ";
        msg += propDef.name;
        msg += " is both WRITEable and CONSTANT. CONSTANT will be ignored.";
        propDef.constant = false;
        warning(msg.constData());
    }
    if (propDef.constant && !propDef.notify.isNull()) {
        QByteArray msg;
        msg += "Property declaration ";
        msg += propDef.name;
        msg += " is both NOTIFYable and CONSTANT. CONSTANT will be ignored.";
        propDef.constant = false;
        warning(msg.constData());
    }
}

void Moc::parseProperty(ClassDef *def)
{
    next(LPAREN);
    PropertyDef propDef;
    createPropertyDef(propDef);
    next(RPAREN);


    if(!propDef.notify.isEmpty())
        def->notifyableProperties++;
    if (propDef.revision > 0)
        ++def->revisionedProperties;
    def->propertyList += propDef;
}

void Moc::parsePrivateProperty(ClassDef *def)
{
    next(LPAREN);
    PropertyDef propDef;
    next(IDENTIFIER);
    propDef.inPrivateClass = lexem();
    while (test(SCOPE)) {
        propDef.inPrivateClass += lexem();
        next(IDENTIFIER);
        propDef.inPrivateClass += lexem();
    }
    // also allow void functions
    if (test(LPAREN)) {
        next(RPAREN);
        propDef.inPrivateClass += "()";
    }

    next(COMMA);

    createPropertyDef(propDef);

    if(!propDef.notify.isEmpty())
        def->notifyableProperties++;
    if (propDef.revision > 0)
        ++def->revisionedProperties;

    def->propertyList += propDef;
}

void Moc::parseEnumOrFlag(ClassDef *def, bool isFlag)
{
    next(LPAREN);
    QByteArray identifier;
    while (test(IDENTIFIER)) {
        identifier = lexem();
        while (test(SCOPE) && test(IDENTIFIER)) {
            identifier += "::";
            identifier += lexem();
        }
        def->enumDeclarations[identifier] = isFlag;
    }
    next(RPAREN);
}

void Moc::parseFlag(ClassDef *def)
{
    next(LPAREN);
    QByteArray flagName, enumName;
    while (test(IDENTIFIER)) {
        flagName = lexem();
        while (test(SCOPE) && test(IDENTIFIER)) {
            flagName += "::";
            flagName += lexem();
        }
    }
    next(COMMA);
    while (test(IDENTIFIER)) {
        enumName = lexem();
        while (test(SCOPE) && test(IDENTIFIER)) {
            enumName += "::";
            enumName += lexem();
        }
    }

    def->flagAliases.insert(enumName, flagName);
    next(RPAREN);
}

void Moc::parseClassInfo(ClassDef *def)
{
    next(LPAREN);
    ClassInfoDef infoDef;
    next(STRING_LITERAL);
    infoDef.name = symbol().unquotedLexem();
    next(COMMA);
    if (test(STRING_LITERAL)) {
        infoDef.value = symbol().unquotedLexem();
    } else {
        // support Q_CLASSINFO("help", QT_TR_NOOP("blah"))
        next(IDENTIFIER);
        next(LPAREN);
        next(STRING_LITERAL);
        infoDef.value = symbol().unquotedLexem();
        next(RPAREN);
    }
    next(RPAREN);
    def->classInfoList += infoDef;
}

void Moc::parseInterfaces(ClassDef *def)
{
    next(LPAREN);
    while (test(IDENTIFIER)) {
        QList<ClassDef::Interface> iface;
        iface += ClassDef::Interface(lexem());
        while (test(SCOPE)) {
            iface.last().className += lexem();
            next(IDENTIFIER);
            iface.last().className += lexem();
        }
        while (test(COLON)) {
            next(IDENTIFIER);
            iface += ClassDef::Interface(lexem());
            while (test(SCOPE)) {
                iface.last().className += lexem();
                next(IDENTIFIER);
                iface.last().className += lexem();
            }
        }
        // resolve from classnames to interface ids
        for (int i = 0; i < iface.count(); ++i) {
            const QByteArray iid = interface2IdMap.value(iface.at(i).className);
            if (iid.isEmpty())
                error("Undefined interface");

            iface[i].interfaceId = iid;
        }
        def->interfaceList += iface;
    }
    next(RPAREN);
}

void Moc::parseDeclareInterface()
{
    next(LPAREN);
    QByteArray interface;
    next(IDENTIFIER);
    interface += lexem();
    while (test(SCOPE)) {
        interface += lexem();
        next(IDENTIFIER);
        interface += lexem();
    }
    next(COMMA);
    QByteArray iid;
    if (test(STRING_LITERAL)) {
        iid = lexem();
    } else {
        next(IDENTIFIER);
        iid = lexem();
    }
    interface2IdMap.insert(interface, iid);
    next(RPAREN);
}

void Moc::parseDeclareMetatype()
{
    next(LPAREN);
    QByteArray typeName = lexemUntil(RPAREN);
    typeName.remove(0, 1);
    typeName.chop(1);
    metaTypes.append(typeName);
}

void Moc::parseSlotInPrivate(ClassDef *def, FunctionDef::Access access)
{
    next(LPAREN);
    FunctionDef funcDef;
    next(IDENTIFIER);
    funcDef.inPrivateClass = lexem();
    // also allow void functions
    if (test(LPAREN)) {
        next(RPAREN);
        funcDef.inPrivateClass += "()";
    }
    next(COMMA);
    funcDef.access = access;
    parseFunction(&funcDef, true);
    def->slotList += funcDef;
    while (funcDef.arguments.size() > 0 && funcDef.arguments.last().isDefault) {
        funcDef.wasCloned = true;
        funcDef.arguments.removeLast();
        def->slotList += funcDef;
    }
    if (funcDef.revision > 0)
        ++def->revisionedMethods;

}

QByteArray Moc::lexemUntil(Token target)
{
    int from = index;
    until(target);
    QByteArray s;
    while (from <= index) {
        QByteArray n = symbols.at(from++-1).lexem();
        if (s.size() && n.size()
            && is_ident_char(s.at(s.size()-1))
            && is_ident_char(n.at(0)))
            s += ' ';
        s += n;
    }
    return s;
}

bool Moc::until(Token target) {
    int braceCount = 0;
    int brackCount = 0;
    int parenCount = 0;
    int angleCount = 0;
    if (index) {
        switch(symbols.at(index-1).token) {
        case LBRACE: ++braceCount; break;
        case LBRACK: ++brackCount; break;
        case LPAREN: ++parenCount; break;
        case LANGLE: ++angleCount; break;
        default: break;
        }
    }

    //when searching commas within the default argument, we should take care of template depth (anglecount)
    // unfortunatelly, we do not have enough semantic information to know if '<' is the operator< or
    // the beginning of a template type. so we just use heuristics.
    int possible = -1;

    while (index < symbols.size()) {
        Token t = symbols.at(index++).token;
        switch (t) {
        case LBRACE: ++braceCount; break;
        case RBRACE: --braceCount; break;
        case LBRACK: ++brackCount; break;
        case RBRACK: --brackCount; break;
        case LPAREN: ++parenCount; break;
        case RPAREN: --parenCount; break;
        case LANGLE: ++angleCount; break;
        case RANGLE: --angleCount; break;
        case GTGT: angleCount -= 2; t = RANGLE; break;
        default: break;
        }
        if (t == target
            && braceCount <= 0
            && brackCount <= 0
            && parenCount <= 0
            && (target != RANGLE || angleCount <= 0)) {
            if (target != COMMA || angleCount <= 0)
                return true;
            possible = index;
        }

        if (target == COMMA && t == EQ && possible != -1) {
            index = possible;
            return true;
        }

        if (braceCount < 0 || brackCount < 0 || parenCount < 0
            || (target == RANGLE && angleCount < 0)) {
            --index;
            break;
        }
    }

    if(target == COMMA && angleCount != 0 && possible != -1) {
        index = possible;
        return true;
    }

    return false;
}

void Moc::checkSuperClasses(ClassDef *def)
{
    const QByteArray firstSuperclass = def->superclassList.value(0).first;

    if (!knownQObjectClasses.contains(firstSuperclass)) {
        // enable once we /require/ include paths
#if 0
        QByteArray msg;
        msg += "Class ";
        msg += def->className;
        msg += " contains the Q_OBJECT macro and inherits from ";
        msg += def->superclassList.value(0);
        msg += " but that is not a known QObject subclass. You may get compilation errors.";
        warning(msg.constData());
#endif
        return;
    }
    for (int i = 1; i < def->superclassList.count(); ++i) {
        const QByteArray superClass = def->superclassList.at(i).first;
        if (knownQObjectClasses.contains(superClass)) {
            QByteArray msg;
            msg += "Class ";
            msg += def->classname;
            msg += " inherits from two QObject subclasses ";
            msg += firstSuperclass;
            msg += " and ";
            msg += superClass;
            msg += ". This is not supported!";
            warning(msg.constData());
        }

        if (interface2IdMap.contains(superClass)) {
            bool registeredInterface = false;
            for (int i = 0; i < def->interfaceList.count(); ++i)
                if (def->interfaceList.at(i).first().className == superClass) {
                    registeredInterface = true;
                    break;
                }

            if (!registeredInterface) {
                QByteArray msg;
                msg += "Class ";
                msg += def->classname;
                msg += " implements the interface ";
                msg += superClass;
                msg += " but does not list it in Q_INTERFACES. qobject_cast to ";
                msg += superClass;
                msg += " will not work!";
                warning(msg.constData());
            }
        }
    }
}

void Moc::checkProperties(ClassDef *cdef)
{
    //
    // specify get function, for compatibiliy we accept functions
    // returning pointers, or const char * for QByteArray.
    //
    for (int i = 0; i < cdef->propertyList.count(); ++i) {
        PropertyDef &p = cdef->propertyList[i];
        if (p.read.isEmpty())
            continue;
        for (int j = 0; j < cdef->publicList.count(); ++j) {
            const FunctionDef &f = cdef->publicList.at(j);
            if (f.name != p.read)
                continue;
            if (!f.isConst) // get  functions must be const
                continue;
            if (f.arguments.size()) // and must not take any arguments
                continue;
            PropertyDef::Specification spec = PropertyDef::ValueSpec;
            QByteArray tmp = f.normalizedType;
            if (p.type == "QByteArray" && tmp == "const char *")
                tmp = "QByteArray";
            if (tmp.left(6) == "const ")
                tmp = tmp.mid(6);
            if (p.type != tmp && tmp.endsWith('*')) {
                tmp.chop(1);
                spec = PropertyDef::PointerSpec;
            } else if (f.type.name.endsWith('&')) { // raw type, not normalized type
                spec = PropertyDef::ReferenceSpec;
            }
            if (p.type != tmp)
                continue;
            p.gspec = spec;
            break;
        }
        if(!p.notify.isEmpty()) {
            int notifyId = -1;
            for (int j = 0; j < cdef->signalList.count(); ++j) {
                const FunctionDef &f = cdef->signalList.at(j);
                if(f.name != p.notify) {
                    continue;
                } else {
                    notifyId = j /* Signal indexes start from 0 */;
                    break;
                }
            }
            p.notifyId = notifyId;
            if (notifyId == -1) {
                QByteArray msg = "NOTIFY signal '" + p.notify + "' of property '" + p.name
                        + "' does not exist in class " + cdef->classname + ".";
                error(msg.constData());
            }
        }
    }
}



QT_END_NAMESPACE