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/*
* Copyright (C) 2007-2012 Xagasoft, All rights reserved.
*
* This file is part of the libgats library and is released under the
* terms of the license contained in the file LICENSE.
*/
#ifndef GATS_OBJECT_H
#define GATS_OBJECT_H
#include <bu/string.h>
namespace Bu
{
class Stream;
class Formatter;
};
namespace Gats
{
enum Type
{
typeDictionary,
typeList,
typeString,
typeInteger,
typeFloat,
typeBoolean,
typeNull
};
/**
* The baseclass for every type that can be stored in a packet.
*/
class Object
{
public:
Object();
virtual ~Object();
virtual Type getType() const =0;
virtual void write( Bu::Stream &rOut ) const=0;
virtual void read( Bu::Stream &rIn, char cType )=0;
virtual Object *clone() const=0;
static Object *read( Bu::Stream &rIn );
static Object *strToGats( const Bu::String &sStr );
private:
class StrPos
{
public:
StrPos( const Bu::String::const_iterator &i ) :
i( i ), iLine( 1 ), iChar( 1 )
{ }
Bu::String::const_iterator i;
int iLine;
int iChar;
char operator*()
{
return *i;
}
StrPos &operator++(int)
{
i++;
if( i )
{
if( *i == '\n' )
{
iLine++;
iChar = 0;
}
else
iChar++;
}
return *this;
}
operator bool()
{
return i;
}
};
class Thrower : public Bu::String::FormatProxyEndAction
{
public:
Thrower( Gats::Object::StrPos &i ) :
i( i )
{
}
virtual ~Thrower()
{
}
virtual void operator()( const Bu::String &sFinal )
{
throw Bu::ExceptionBase(
(Bu::String("%1: %2: ").arg(i.iLine).arg(i.iChar).end() + sFinal)
.getStr()
);
}
private:
Gats::Object::StrPos &i;
};
static Bu::String::FormatProxy posError( Gats::Object::StrPos &i, const Bu::String &msg );
static Object *strToGats( Gats::Object::StrPos &i );
static Bu::String token( Gats::Object::StrPos &i );
static void skipWs( Gats::Object::StrPos &i );
};
const char *typeToStr( Type t );
};
Bu::Formatter &operator<<( Bu::Formatter &f, const Gats::Object &obj );
Bu::Formatter &operator<<( Bu::Formatter &f, const Gats::Type &t );
#endif
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