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gostcoin
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Cryptocurrency with GOST R 34.11-2012 algo, GOST R 34.10-2012 signature
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gostcoin/src/json/json_spirit_value.h

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#ifndef JSON_SPIRIT_VALUE
#define JSON_SPIRIT_VALUE
// Copyright John W. Wilkinson 2007 - 2009.
// Distributed under the MIT License, see accompanying file LICENSE.txt
// json spirit version 4.03
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
#include <vector>
#include <map>
#include <string>
#include <cassert>
#include <sstream>
#include <stdexcept>
#include <boost/config.hpp>
#include <boost/cstdint.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/variant.hpp>
namespace json_spirit
{
enum Value_type{ obj_type, array_type, str_type, bool_type, int_type, real_type, null_type };
static const char* Value_type_name[]={"obj", "array", "str", "bool", "int", "real", "null"};
template< class Config > // Config determines whether the value uses std::string or std::wstring and
// whether JSON Objects are represented as vectors or maps
class Value_impl
{
public:
typedef Config Config_type;
typedef typename Config::String_type String_type;
typedef typename Config::Object_type Object;
typedef typename Config::Array_type Array;
typedef typename String_type::const_pointer Const_str_ptr; // eg const char*
Value_impl(); // creates null value
Value_impl( Const_str_ptr value );
Value_impl( const String_type& value );
Value_impl( const Object& value );
Value_impl( const Array& value );
Value_impl( bool value );
Value_impl( int value );
Value_impl( boost::int64_t value );
Value_impl( boost::uint64_t value );
Value_impl( double value );
Value_impl( const Value_impl& other );
bool operator==( const Value_impl& lhs ) const;
Value_impl& operator=( const Value_impl& lhs );
Value_type type() const;
bool is_uint64() const;
bool is_null() const;
const String_type& get_str() const;
const Object& get_obj() const;
const Array& get_array() const;
bool get_bool() const;
int get_int() const;
boost::int64_t get_int64() const;
boost::uint64_t get_uint64() const;
double get_real() const;
Object& get_obj();
Array& get_array();
template< typename T > T get_value() const; // example usage: int i = value.get_value< int >();
// or double d = value.get_value< double >();
static const Value_impl null;
private:
void check_type( const Value_type vtype ) const;
typedef boost::variant< String_type,
boost::recursive_wrapper< Object >, boost::recursive_wrapper< Array >,
bool, boost::int64_t, double > Variant;
Value_type type_;
Variant v_;
bool is_uint64_;
};
// vector objects
template< class Config >
struct Pair_impl
{
typedef typename Config::String_type String_type;
typedef typename Config::Value_type Value_type;
Pair_impl( const String_type& name, const Value_type& value );
bool operator==( const Pair_impl& lhs ) const;
String_type name_;
Value_type value_;
};
template< class String >
struct Config_vector
{
typedef String String_type;
typedef Value_impl< Config_vector > Value_type;
typedef Pair_impl < Config_vector > Pair_type;
typedef std::vector< Value_type > Array_type;
typedef std::vector< Pair_type > Object_type;
static Value_type& add( Object_type& obj, const String_type& name, const Value_type& value )
{
obj.push_back( Pair_type( name , value ) );
return obj.back().value_;
}
static String_type get_name( const Pair_type& pair )
{
return pair.name_;
}
static Value_type get_value( const Pair_type& pair )
{
return pair.value_;
}
};
// typedefs for ASCII
typedef Config_vector< std::string > Config;
typedef Config::Value_type Value;
typedef Config::Pair_type Pair;
typedef Config::Object_type Object;
typedef Config::Array_type Array;
// typedefs for Unicode
#ifndef BOOST_NO_STD_WSTRING
typedef Config_vector< std::wstring > wConfig;
typedef wConfig::Value_type wValue;
typedef wConfig::Pair_type wPair;
typedef wConfig::Object_type wObject;
typedef wConfig::Array_type wArray;
#endif
// map objects
template< class String >
struct Config_map
{
typedef String String_type;
typedef Value_impl< Config_map > Value_type;
typedef std::vector< Value_type > Array_type;
typedef std::map< String_type, Value_type > Object_type;
typedef typename Object_type::value_type Pair_type;
static Value_type& add( Object_type& obj, const String_type& name, const Value_type& value )
{
return obj[ name ] = value;
}
static String_type get_name( const Pair_type& pair )
{
return pair.first;
}
static Value_type get_value( const Pair_type& pair )
{
return pair.second;
}
};
// typedefs for ASCII
typedef Config_map< std::string > mConfig;
typedef mConfig::Value_type mValue;
typedef mConfig::Object_type mObject;
typedef mConfig::Array_type mArray;
// typedefs for Unicode
#ifndef BOOST_NO_STD_WSTRING
typedef Config_map< std::wstring > wmConfig;
typedef wmConfig::Value_type wmValue;
typedef wmConfig::Object_type wmObject;
typedef wmConfig::Array_type wmArray;
#endif
///////////////////////////////////////////////////////////////////////////////////////////////
//
// implementation
template< class Config >
const Value_impl< Config > Value_impl< Config >::null;
template< class Config >
Value_impl< Config >::Value_impl()
: type_( null_type )
, is_uint64_( false )
{
}
template< class Config >
Value_impl< Config >::Value_impl( const Const_str_ptr value )
: type_( str_type )
, v_( String_type( value ) )
, is_uint64_( false )
{
}
template< class Config >
Value_impl< Config >::Value_impl( const String_type& value )
: type_( str_type )
, v_( value )
, is_uint64_( false )
{
}
template< class Config >
Value_impl< Config >::Value_impl( const Object& value )
: type_( obj_type )
, v_( value )
, is_uint64_( false )
{
}
template< class Config >
Value_impl< Config >::Value_impl( const Array& value )
: type_( array_type )
, v_( value )
, is_uint64_( false )
{
}
template< class Config >
Value_impl< Config >::Value_impl( bool value )
: type_( bool_type )
, v_( value )
, is_uint64_( false )
{
}
template< class Config >
Value_impl< Config >::Value_impl( int value )
: type_( int_type )
, v_( static_cast< boost::int64_t >( value ) )
, is_uint64_( false )
{
}
template< class Config >
Value_impl< Config >::Value_impl( boost::int64_t value )
: type_( int_type )
, v_( value )
, is_uint64_( false )
{
}
template< class Config >
Value_impl< Config >::Value_impl( boost::uint64_t value )
: type_( int_type )
, v_( static_cast< boost::int64_t >( value ) )
, is_uint64_( true )
{
}
template< class Config >
Value_impl< Config >::Value_impl( double value )
: type_( real_type )
, v_( value )
, is_uint64_( false )
{
}
template< class Config >
Value_impl< Config >::Value_impl( const Value_impl< Config >& other )
: type_( other.type() )
, v_( other.v_ )
, is_uint64_( other.is_uint64_ )
{
}
template< class Config >
Value_impl< Config >& Value_impl< Config >::operator=( const Value_impl& lhs )
{
Value_impl tmp( lhs );
std::swap( type_, tmp.type_ );
std::swap( v_, tmp.v_ );
std::swap( is_uint64_, tmp.is_uint64_ );
return *this;
}
template< class Config >
bool Value_impl< Config >::operator==( const Value_impl& lhs ) const
{
if( this == &lhs ) return true;
if( type() != lhs.type() ) return false;
return v_ == lhs.v_;
}
template< class Config >
Value_type Value_impl< Config >::type() const
{
return type_;
}
template< class Config >
bool Value_impl< Config >::is_uint64() const
{
return is_uint64_;
}
template< class Config >
bool Value_impl< Config >::is_null() const
{
return type() == null_type;
}
template< class Config >
void Value_impl< Config >::check_type( const Value_type vtype ) const
{
if( type() != vtype )
{
std::ostringstream os;
///// Bitcoin: Tell the types by name instead of by number
os << "value is type " << Value_type_name[type()] << ", expected " << Value_type_name[vtype];
throw std::runtime_error( os.str() );
}
}
template< class Config >
const typename Config::String_type& Value_impl< Config >::get_str() const
{
check_type( str_type );
return *boost::get< String_type >( &v_ );
}
template< class Config >
const typename Value_impl< Config >::Object& Value_impl< Config >::get_obj() const
{
check_type( obj_type );
return *boost::get< Object >( &v_ );
}
template< class Config >
const typename Value_impl< Config >::Array& Value_impl< Config >::get_array() const
{
check_type( array_type );
return *boost::get< Array >( &v_ );
}
template< class Config >
bool Value_impl< Config >::get_bool() const
{
check_type( bool_type );
return boost::get< bool >( v_ );
}
template< class Config >
int Value_impl< Config >::get_int() const
{
check_type( int_type );
return static_cast< int >( get_int64() );
}
template< class Config >
boost::int64_t Value_impl< Config >::get_int64() const
{
check_type( int_type );
return boost::get< boost::int64_t >( v_ );
}
template< class Config >
boost::uint64_t Value_impl< Config >::get_uint64() const
{
check_type( int_type );
return static_cast< boost::uint64_t >( get_int64() );
}
template< class Config >
double Value_impl< Config >::get_real() const
{
if( type() == int_type )
{
return is_uint64() ? static_cast< double >( get_uint64() )
: static_cast< double >( get_int64() );
}
check_type( real_type );
return boost::get< double >( v_ );
}
template< class Config >
typename Value_impl< Config >::Object& Value_impl< Config >::get_obj()
{
check_type( obj_type );
return *boost::get< Object >( &v_ );
}
template< class Config >
typename Value_impl< Config >::Array& Value_impl< Config >::get_array()
{
check_type( array_type );
return *boost::get< Array >( &v_ );
}
template< class Config >
Pair_impl< Config >::Pair_impl( const String_type& name, const Value_type& value )
: name_( name )
, value_( value )
{
}
template< class Config >
bool Pair_impl< Config >::operator==( const Pair_impl< Config >& lhs ) const
{
if( this == &lhs ) return true;
return ( name_ == lhs.name_ ) && ( value_ == lhs.value_ );
}
// converts a C string, ie. 8 bit char array, to a string object
//
template < class String_type >
String_type to_str( const char* c_str )
{
String_type result;
for( const char* p = c_str; *p != 0; ++p )
{
result += *p;
}
return result;
}
//
namespace internal_
{
template< typename T >
struct Type_to_type
{
};
template< class Value >
int get_value( const Value& value, Type_to_type< int > )
{
return value.get_int();
}
template< class Value >
boost::int64_t get_value( const Value& value, Type_to_type< boost::int64_t > )
{
return value.get_int64();
}
template< class Value >
boost::uint64_t get_value( const Value& value, Type_to_type< boost::uint64_t > )
{
return value.get_uint64();
}
template< class Value >
double get_value( const Value& value, Type_to_type< double > )
{
return value.get_real();
}
template< class Value >
typename Value::String_type get_value( const Value& value, Type_to_type< typename Value::String_type > )
{
return value.get_str();
}
template< class Value >
typename Value::Array get_value( const Value& value, Type_to_type< typename Value::Array > )
{
return value.get_array();
}
template< class Value >
typename Value::Object get_value( const Value& value, Type_to_type< typename Value::Object > )
{
return value.get_obj();
}
template< class Value >
bool get_value( const Value& value, Type_to_type< bool > )
{
return value.get_bool();
}
}
template< class Config >
template< typename T >
T Value_impl< Config >::get_value() const
{
return internal_::get_value( *this, internal_::Type_to_type< T >() );
}
}
#endif