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variant.cpp
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variant.cpp
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#include <algorithm>
#include <string>
#include <limits>
#include <boost/scoped_array.hpp>
#include <fc/variant.hpp>
#include <fc/variant_object.hpp>
#include <fc/exception/exception.hpp>
#include <fc/crypto/base64.hpp>
#include <fc/crypto/hex.hpp>
#include <fc/reflect/variant.hpp>
#include <fc/io/json.hpp>
namespace {
const double DOUBLE_ACCURACY = 0.0000001;
}
#ifdef __APPLE__
# if __apple_build_version__ < 9020039 || __clang_major__ == 4 // 902.00.39 is clang 5, not actually checked, is it works there
# define ABSENT__INT128_TYPEID
# endif
#endif
template<typename A>
inline __int128 lexical_cast_128(const A& arg) {
#ifdef ABSENT__INT128_TYPEID
__int128 result = 0;
if (!boost::conversion::detail::try_lexical_convert(arg, result)) {
boost::throw_exception(boost::bad_lexical_cast()); // don't pass typeid(__int128), which prevents linking
}
return result;
#else
return boost::lexical_cast<__int128>(arg);
#endif
}
namespace fc {
variant::variant( uint8_t val )
{
type_ = type_id::uint64_type;
value_.as_uint64 = val;
}
variant::variant( int8_t val )
{
type_ = type_id::int64_type;
value_.as_int64 = val;
}
variant::variant( uint16_t val )
{
type_ = type_id::uint64_type;
value_.as_uint64 = val;
}
variant::variant( int16_t val )
{
type_ = type_id::int64_type;
value_.as_int64 = val;
}
variant::variant( uint32_t val )
{
type_ = type_id::uint64_type;
value_.as_uint64 = val;
}
variant::variant( int32_t val )
{
type_ = type_id::int64_type;
value_.as_int64 = val;
}
variant::variant( uint64_t val )
{
type_ = type_id::uint64_type;
value_.as_uint64 = val;
}
variant::variant( int64_t val )
{
type_ = type_id::int64_type;
value_.as_int64 = val;
}
variant::variant( float val )
{
type_ = type_id::double_type;
value_.as_double = val;
}
variant::variant( double val )
{
type_ = type_id::double_type;
value_.as_double = val;
}
variant::variant( bool val )
{
type_ = type_id::bool_type;
value_.as_bool = val;
}
variant::variant( char* str )
{
type_ = type_id::string_type;
value_.as_string = new std::string(str);
}
variant::variant( const char* str )
{
type_ = type_id::string_type;
value_.as_string = new std::string(str);;
}
variant::variant( fc::string val )
{
type_ = type_id::string_type;
value_.as_string = new std::string(std::move(val));
}
variant::variant( blob val )
{
type_ = type_id::blob_type;
value_.as_blob = new blob(std::move(val));
}
variant::variant( variant_object obj)
{
type_ = type_id::object_type;
value_.as_object = new variant_object(std::move(obj));
}
variant::variant( mutable_variant_object obj)
{
type_ = type_id::object_type;
value_.as_object = new variant_object(std::move(obj));
}
variant::variant( variants arr )
{
type_ = type_id::array_type;
value_.as_array = new variants(std::move(arr));
}
variant::variant(const time_point& time)
{
type_ = type_id::time_type;
value_.as_time = time;
}
variant::variant(const time_point_sec& time)
{
type_ = type_id::time_type;
value_.as_time = time;
}
variant::variant(const __int128& val)
{
type_ = type_id::int128_type;
value_.as_int128 = val;
}
variant::variant(const __uint128& val)
{
type_ = type_id::uint128_type;
value_.as_uint128 = val;
}
variant::variant( const variant& v )
{
*this = v;
}
void variant::clear()
{
switch (type_) {
case type_id::array_type: delete value_.as_array; break;
case type_id::blob_type: delete value_.as_blob; break;
case type_id::object_type: delete value_.as_object; break;
case type_id::string_type: delete value_.as_string; break;
default: break;
}
type_ = type_id::null_type;
}
variant& variant::operator=( const variant& v )
{
if( this == &v )
return *this;
clear();
type_ = v.type_;
switch( v.get_type() )
{
case type_id::object_type:
value_.as_object = new variant_object(*v.value_.as_object);
break;
case type_id::array_type:
value_.as_array = new variants(*v.value_.as_array);
break;
case type_id::string_type:
value_.as_string = new std::string(*v.value_.as_string);
break;
case type_id::blob_type:
value_.as_blob = new blob(*v.value_.as_blob);
break;
default:
value_.as_int128 = v.value_.as_int128;
}
return *this;
}
void variant::visit( const visitor& v )const
{
switch( get_type() )
{
case type_id::null_type:
v.handle();
return;
case type_id::int64_type:
v.handle(value_.as_int64);
return;
case type_id::uint64_type:
v.handle(value_.as_uint64);
return;
case type_id::double_type:
v.handle(value_.as_double);
return;
case type_id::bool_type:
v.handle(value_.as_bool);
return;
case type_id::string_type:
v.handle(*value_.as_string);
return;
case type_id::blob_type:
v.handle(as_string());
case type_id::time_type:
v.handle(value_.as_time);
return;
case type_id::array_type:
v.handle(*value_.as_array);
return;
case type_id::object_type:
v.handle(*value_.as_object);
return;
case type_id::int128_type:
v.handle(value_.as_int128);
return;
case type_id::uint128_type:
v.handle(value_.as_uint128);
return;
default:
FC_THROW_EXCEPTION( assert_exception, "Invalid Type / Corrupted Memory" );
}
}
bool variant::is_string()const
{
return get_type() == type_id::string_type || get_type() == type_id::blob_type;
}
bool variant::is_integer()const
{
switch( get_type() )
{
case type_id::int64_type:
case type_id::uint64_type:
case type_id::int128_type:
case type_id::uint128_type:
case type_id::bool_type:
return true;
default:
return false;
}
return false;
}
bool variant::is_numeric()const
{
switch( get_type() )
{
case type_id::int64_type:
case type_id::uint64_type:
case type_id::int128_type:
case type_id::uint128_type:
case type_id::double_type:
case type_id::bool_type:
return true;
default:
return false;
}
return false;
}
bool variant::is_blob()const
{
return get_type() == type_id::blob_type;
}
int64_t variant::as_int64() const try {
return to_uint64();
} catch (const bad_cast_exception&) {
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from ${type} to int64", ("type", get_type()) );
}
uint64_t variant::as_uint64() const try {
return to_uint64();
} catch (const bad_cast_exception&) {
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from ${type} to uint64", ("type", get_type()) );
}
uint64_t variant::to_uint64() const {
switch( get_type() )
{
case type_id::string_type:
return fc::to_uint64(*value_.as_string);
case type_id::double_type:
return int64_t(value_.as_double);
case type_id::int64_type:
case type_id::uint64_type:
return value_.as_int64;
case type_id::bool_type:
return value_.as_bool;
case type_id::null_type:
return 0;
case type_id::uint128_type:
case type_id::int128_type:
return uint128_to_uint64();
default:
throw bad_cast_exception();
}
}
uint64_t variant::uint128_to_uint64() const {
if (value_.as_uint128 > std::numeric_limits<uint64_t>::max()) {
throw bad_cast_exception();
}
return value_.as_uint128;
}
double variant::as_double()const
{
switch( get_type() )
{
case type_id::string_type:
return to_double(*value_.as_string);
case type_id::double_type:
return value_.as_double;
case type_id::int64_type:
return static_cast<double>(value_.as_int64);
case type_id::uint64_type:
return static_cast<double>(value_.as_uint64);
case type_id::bool_type:
return static_cast<double>(value_.as_bool);
case type_id::null_type:
return 0;
case type_id::uint128_type:
case type_id::int128_type:
return uint128_to_double();
default:
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from ${type} to double", ("type",get_type()) );
}
}
double variant::uint128_to_double() const {
const __uint128 val = value_.as_uint128;
if (val > std::numeric_limits<uint64_t>::max()) {
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from ${type} to double", ("type", get_type()));
}
return static_cast<double>(val);
}
bool variant::as_bool() const
{
switch( get_type() )
{
case type_id::string_type:
{
if( *value_.as_string == "true" )
return true;
if( *value_.as_string == "false" )
return false;
FC_THROW_EXCEPTION( bad_cast_exception, "Cannot convert string to bool (only \"true\" or \"false\" can be converted)" );
}
case type_id::double_type:
return std::abs(value_.as_double - 0.0) < DOUBLE_ACCURACY;
case type_id::int64_type:
case type_id::uint64_type:
return value_.as_int64 != 0;
case type_id::bool_type:
return value_.as_bool;
case type_id::null_type:
return false;
case type_id::uint128_type:
case type_id::int128_type:
return value_.as_int128 != 0;
default:
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from ${type} to bool" , ("type",get_type()));
}
}
string variant::as_string() const
{
switch( get_type() )
{
case type_id::string_type:
return *value_.as_string;
case type_id::double_type:
return to_string(value_.as_double);
case type_id::int64_type:
return to_string(value_.as_int64);
case type_id::uint64_type:
return to_string(value_.as_uint64);
case type_id::bool_type:
return value_.as_bool ? "true" : "false";
case type_id::blob_type:
if(!value_.as_blob->data.empty())
return to_hex(value_.as_blob->data);
//return base64_encode(value_.as_blob->data) + "=";
return string();
case type_id::null_type:
return string();
case type_id::time_type:
return static_cast<std::string>(value_.as_time);
case type_id::int128_type:
return boost::lexical_cast<std::string>(value_.as_int128);
case type_id::uint128_type:
return boost::lexical_cast<std::string>(value_.as_uint128);
default:
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from ${type} to string", ("type", get_type() ) );
}
}
blob& variant::get_mutable_blob()
{
if( get_type() == type_id::blob_type )
return *value_.as_blob;
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from ${type} to Blob", ("type",get_type()) );
}
const blob& variant::get_blob() const
{
return const_cast<variant*>(this)->get_mutable_blob();
}
blob variant::as_blob() const
{
switch( get_type() )
{
case type_id::null_type: return blob();
case type_id::blob_type: return *value_.as_blob;
case type_id::string_type:
{
if( value_.as_string->empty()) return blob();
// if( value_.as_string->back() == '=' )
// {
// const std::string b64 = base64_decode(*value_.as_string);
// return blob({std::vector<char>(b64.begin(), b64.end())});
// }
if (value_.as_string->size() % 2 == 0) try {
blob b;
b.data.resize(value_.as_string->size() / 2);
from_hex(*value_.as_string, b.data.data(), b.data.size());
return b;
} catch(...) {
// skip
}
return blob( { std::vector<char>( value_.as_string->begin(), value_.as_string->end() ) } );
}
default:
case type_id::array_type:
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from ${type} to Blob", ("type",get_type()) );
}
}
time_point variant::as_time_point() const {
if (get_type() == type_id::time_type) {
return value_.as_time;
} else if(get_type() == type_id::string_type) {
return fc::time_point::from_iso_string(*value_.as_string);
}
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from ${type} to Time Point", ("type", get_type()) );
}
time_point_sec variant::as_time_point_sec() const {
return as_time_point();
}
__uint128_t variant::as_uint128() const {
try {
return to_uint128();
} catch (...) {
FC_THROW_EXCEPTION( bad_cast_exception, "Cannot convert variant of type '${type}' into a uint128", ("type", get_type()) );
}
}
__int128 variant::as_int128() const {
try {
return to_uint128();
} catch (...) {
FC_THROW_EXCEPTION( bad_cast_exception, "Cannot convert variant of type '${type}' into a int128", ("type", get_type()) );
}
}
__uint128 variant::to_uint128() const {
if( is_uint128() || is_int128()) {
return value_.as_uint128;
} else if (is_string()) {
return lexical_cast_128(value_.as_string);
} else {
return as_uint64();
}
}
/// @throw if get_type() != array_type
const variants& variant::get_array() const {
return const_cast<variant*>(this)->get_mutable_array();
}
const variant& variant::operator[]( const char* key )const
{
return get_object()[key];
}
const variant& variant::operator[]( size_t pos )const
{
return get_array()[pos];
}
/// @pre is_array()
size_t variant::size()const
{
return get_array().size();
}
variants& variant::get_mutable_array() {
if( get_type() == type_id::array_type )
return *value_.as_array;
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from ${type} to an Array", ("type",get_type()) );
}
string& variant::get_mutable_string() {
if( get_type() == type_id::blob_type ) {
auto v = variant(as_string());
this->operator=(fc::move(v));
}
if( get_type() == type_id::string_type )
return *value_.as_string;
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from type '${type}' to string", ("type",get_type()) );
}
const string& variant::get_string() const {
return const_cast<variant*>(this)->get_mutable_string();
}
/// @throw if get_type() != object_type
const variant_object& variant::get_object() const {
if( get_type() == type_id::object_type )
return *value_.as_object;
FC_THROW_EXCEPTION( bad_cast_exception, "Invalid cast from type '${type}' to Object", ("type",get_type()) );
}
bool variant::has_value(const variant& v) const {
if( get_type() != v.get_type() )
return false;
if( is_double() ) return std::abs(as_double() - v.as_double()) < DOUBLE_ACCURACY;
if( is_int64() ) return as_int64() == v.as_int64();
if( is_uint64() ) return as_uint64() == v.as_uint64();
if( is_int128() ) return as_int128() == v.as_int128();
if( is_uint128() ) return as_uint128() == v.as_uint128();
if( is_time() ) return as_time_point() == v.as_time_point();
if( is_array() ) return get_array() == v.get_array();
if( is_bool() ) return as_bool() == v.as_bool();
if( is_object() ) return get_object().has_value(v.get_object());
if( get_type() == type_id::string_type ) return get_string() == get_string();
if( get_type() == type_id::blob_type ) return get_blob() == get_blob();
return false;
}
void from_variant( const variant& var, variants& vo )
{
vo = var.get_array();
}
//void from_variant( const variant& var, variant_object& vo )
//{
// vo = var.get_object();
//}
void from_variant( const variant& var, variant& vo ) { vo = var; }
void to_variant( const uint8_t& var, variant& vo ) { vo = uint64_t(var); }
// TODO: warn on overflow?
void from_variant( const variant& var, uint8_t& vo ){ vo = static_cast<uint8_t>(var.as_uint64()); }
void to_variant( const int8_t& var, variant& vo ) { vo = int64_t(var); }
// TODO: warn on overflow?
void from_variant( const variant& var, int8_t& vo ){ vo = static_cast<int8_t>(var.as_int64()); }
void to_variant( const uint16_t& var, variant& vo ) { vo = uint64_t(var); }
// TODO: warn on overflow?
void from_variant( const variant& var, uint16_t& vo ){ vo = static_cast<uint16_t>(var.as_uint64()); }
void to_variant( const int16_t& var, variant& vo ) { vo = int64_t(var); }
// TODO: warn on overflow?
void from_variant( const variant& var, int16_t& vo ){ vo = static_cast<int16_t>(var.as_int64()); }
void to_variant( const uint32_t& var, variant& vo ) { vo = uint64_t(var); }
void from_variant( const variant& var, uint32_t& vo )
{
vo = static_cast<uint32_t>(var.as_uint64());
}
void to_variant( const int32_t& var, variant& vo ) {
vo = int64_t(var);
}
void from_variant( const variant& var, int32_t& vo )
{
vo = static_cast<int32_t>(var.as_int64());
}
void to_variant( const unsigned __int128& var, variant& vo ) {
vo = var;
}
void from_variant( const variant& var, unsigned __int128& vo )
{
vo = var.as_uint128();
}
void to_variant( const __int128& var, variant& vo ) {
vo = var;
}
void from_variant( const variant& var, __int128& vo )
{
vo = var.as_int128();
}
void from_variant( const variant& var, int64_t& vo )
{
vo = var.as_int64();
}
void from_variant( const variant& var, uint64_t& vo )
{
vo = var.as_uint64();
}
void from_variant( const variant& var, bool& vo )
{
vo = var.as_bool();
}
void from_variant( const variant& var, double& vo )
{
vo = var.as_double();
}
void from_variant( const variant& var, float& vo )
{
vo = static_cast<float>(var.as_double());
}
void to_variant( const std::string& s, variant& v )
{
v = variant( fc::string(s) );
}
void from_variant( const variant& var, string& vo )
{
vo = var.as_string();
}
void to_variant( const std::vector<char>& var, variant& vo )
{
if( var.size() )
// vo = variant(to_hex(var.data(),var.size()));
vo = variant(blob{var});
else vo = "";
}
void from_variant( const variant& var, std::vector<char>& vo )
{
vo = var.as_blob().data;
// auto str = var.as_string();
// vo.resize( str.size() / 2 );
// if( vo.size() )
// {
// size_t r = from_hex( str, vo.data(), vo.size() );
// FC_ASSERT( r == vo.size() );
// }
// std::string b64 = base64_decode( var.as_string() );
// vo = std::vector<char>( b64.c_str(), b64.c_str() + b64.size() );
}
void to_variant( const UInt<8>& n, variant& v ) { v = uint64_t(n); }
// TODO: warn on overflow?
void from_variant( const variant& v, UInt<8>& n ) { n = static_cast<uint8_t>(v.as_uint64()); }
void to_variant( const UInt<16>& n, variant& v ) { v = uint64_t(n); }
// TODO: warn on overflow?
void from_variant( const variant& v, UInt<16>& n ) { n = static_cast<uint16_t>(v.as_uint64()); }
void to_variant( const UInt<32>& n, variant& v ) { v = uint64_t(n); }
// TODO: warn on overflow?
void from_variant( const variant& v, UInt<32>& n ) { n = static_cast<uint32_t>(v.as_uint64()); }
void to_variant( const UInt<64>& n, variant& v ) { v = uint64_t(n); }
void from_variant( const variant& v, UInt<64>& n ) { n = v.as_uint64(); }
string format_string( const string& format, const variant_object& args )
{
std::stringstream ss;
size_t prev = 0;
auto next = format.find( '$' );
while( prev != size_t(string::npos) && prev < size_t(format.size()) )
{
ss << format.substr( prev, size_t(next-prev) );
// if we got to the end, return it.
if( next == size_t(string::npos) )
return ss.str();
// if we are not at the end, then update the start
prev = next + 1;
if( format[prev] == '{' )
{
// if the next char is a open, then find close
next = format.find( '}', prev );
// if we found close...
if( next != size_t(string::npos) )
{
// the key is between prev and next
string key = format.substr( prev+1, (next-prev-1) );
auto val = args.find( key );
if( val != args.end() )
{
if( val->value().is_object() || val->value().is_array() )
{
ss << json::to_string( val->value() );
}
else
{
ss << val->value().as_string();
}
}
else
{
ss << "${"<<key<<"}";
}
prev = next + 1;
// find the next $
next = format.find( '$', prev );
}
else
{
// we didn't find it.. continue to while...
}
}
else
{
ss << format[prev];
++prev;
next = format.find( '$', prev );
}
}
return ss.str();
}
#ifdef __APPLE__
#elif !defined(_MSC_VER)
void to_variant( long long int s, variant& v ) { v = variant( int64_t(s) ); }
void to_variant( unsigned long long int s, variant& v ) { v = variant( uint64_t(s)); }
#endif
bool operator == ( const variant& a, const variant& b )
{
if( a.is_string() || b.is_string() ) return a.as_string() == b.as_string();
if( a.is_double() || b.is_double() ) return std::abs(a.as_double() - b.as_double()) < DOUBLE_ACCURACY;
if( a.is_int64() || b.is_int64() ) return a.as_int64() == b.as_int64();
if( a.is_uint64() || b.is_uint64() ) return a.as_uint64() == b.as_uint64();
if( a.is_int128() || b.is_int128() ) return a.as_int128() == b.as_int128();
if( a.is_uint128() || b.is_uint128() ) return a.as_uint128() == b.as_uint128();
if( a.is_time() || b.is_time() ) return a.as_time_point() == b.as_time_point();
if( a.is_array() || b.is_array() ) return a.get_array() == b.get_array();
if( a.is_bool() || b.is_bool() ) return a.as_bool() == b.as_bool();
if( a.is_object() && b.is_object() ) return a.get_object() == b.get_object();
return false;
}
bool operator != ( const variant& a, const variant& b )
{
return !( a == b );
}
bool operator ! ( const variant& a )
{
return !a.as_bool();
}
bool operator < ( const variant& a, const variant& b )
{
if( a.is_string() || b.is_string() ) return a.as_string() < b.as_string();
if( a.is_double() || b.is_double() ) return a.as_double() < b.as_double();
if( a.is_int64() || b.is_int64() ) return a.as_int64() < b.as_int64();
if( a.is_uint64() || b.is_uint64() ) return a.as_uint64() < b.as_uint64();
FC_ASSERT( false, "Invalid operation" );
}
bool operator > ( const variant& a, const variant& b )
{
if( a.is_string() || b.is_string() ) return a.as_string() > b.as_string();
if( a.is_double() || b.is_double() ) return a.as_double() > b.as_double();
if( a.is_int64() || b.is_int64() ) return a.as_int64() > b.as_int64();
if( a.is_uint64() || b.is_uint64() ) return a.as_uint64() > b.as_uint64();
FC_ASSERT( false, "Invalid operation" );
}
bool operator <= ( const variant& a, const variant& b )
{
if( a.is_string() || b.is_string() ) return a.as_string() <= b.as_string();
if( a.is_double() || b.is_double() ) return a.as_double() <= b.as_double();
if( a.is_int64() || b.is_int64() ) return a.as_int64() <= b.as_int64();
if( a.is_uint64() || b.is_uint64() ) return a.as_uint64() <= b.as_uint64();
FC_ASSERT( false, "Invalid operation" );
}
variant operator + ( const variant& a, const variant& b )
{
if( a.is_array() && b.is_array() )
{
const variants& aa = a.get_array();
const variants& ba = b.get_array();
variants result;
result.reserve( std::max(aa.size(),ba.size()) );
auto num = std::max(aa.size(),ba.size());
for( unsigned i = 0; i < num; ++i )
{
if( aa.size() > i && ba.size() > i )
result[i] = aa[i] + ba[i];
else if( aa.size() > i )
result[i] = aa[i];
else
result[i] = ba[i];
}
return result;
}
if( a.is_string() || b.is_string() ) return a.as_string() + b.as_string();
if( a.is_double() || b.is_double() ) return a.as_double() + b.as_double();
if( a.is_int64() || b.is_int64() ) return a.as_int64() + b.as_int64();
if( a.is_uint64() || b.is_uint64() ) return a.as_uint64() + b.as_uint64();
FC_ASSERT( false, "invalid operation ${a} + ${b}", ("a",a)("b",b) );
}
variant operator - ( const variant& a, const variant& b )
{
if( a.is_array() && b.is_array() )
{
const variants& aa = a.get_array();
const variants& ba = b.get_array();
variants result;
result.reserve( std::max(aa.size(),ba.size()) );
auto num = std::max(aa.size(),ba.size());
for( unsigned i = 0; i < num; --i )
{
if( aa.size() > i && ba.size() > i )
result[i] = aa[i] - ba[i];
else if( aa.size() > i )
result[i] = aa[i];
else
result[i] = ba[i];
}
return result;
}
if( a.is_string() || b.is_string() ) return a.as_string() - b.as_string();
if( a.is_double() || b.is_double() ) return a.as_double() - b.as_double();
if( a.is_int64() || b.is_int64() ) return a.as_int64() - b.as_int64();
if( a.is_uint64() || b.is_uint64() ) return a.as_uint64() - b.as_uint64();
FC_ASSERT( false, "invalid operation ${a} + ${b}", ("a",a)("b",b) );
}
variant operator * ( const variant& a, const variant& b )
{
if( a.is_double() || b.is_double() ) return a.as_double() * b.as_double();
if( a.is_int64() || b.is_int64() ) return a.as_int64() * b.as_int64();
if( a.is_uint64() || b.is_uint64() ) return a.as_uint64() * b.as_uint64();
if( a.is_array() && b.is_array() )
{
const variants& aa = a.get_array();
const variants& ba = b.get_array();
variants result;
result.reserve( std::max(aa.size(),ba.size()) );
auto num = std::max(aa.size(),ba.size());
for( unsigned i = 0; i < num; ++i )
{
if( aa.size() > i && ba.size() > i )
result[i] = aa[i] * ba[i];
else if( aa.size() > i )
result[i] = aa[i];
else
result[i] = ba[i];
}
return result;
}
FC_ASSERT( false, "invalid operation ${a} * ${b}", ("a",a)("b",b) );
}
variant operator / ( const variant& a, const variant& b )
{
if( a.is_double() || b.is_double() ) return a.as_double() / b.as_double();
if( a.is_int64() || b.is_int64() ) return a.as_int64() / b.as_int64();
if( a.is_uint64() || b.is_uint64() ) return a.as_uint64() / b.as_uint64();
if( a.is_array() && b.is_array() )
{
const variants& aa = a.get_array();
const variants& ba = b.get_array();
variants result;
result.reserve( std::max(aa.size(),ba.size()) );
auto num = std::max(aa.size(),ba.size());
for( unsigned i = 0; i < num; ++i )
{
if( aa.size() > i && ba.size() > i )
result[i] = aa[i] / ba[i];
else if( aa.size() > i )
result[i] = aa[i];
else
result[i] = ba[i];
}
return result;
}
FC_ASSERT( false, "invalid operation ${a} / ${b}", ("a",a)("b",b) );
}
} // namespace fc