DataPtr Field::ShouldSerialize( void* instance ) const
{
// never write discard fields
if ( m_Flags & FieldFlags::Discard )
{
return NULL;
}
ObjectPtr object = Registry::GetInstance()->CreateInstance( m_DataClass );
DataPtr data = ThrowCast< Data >( object );
data->ConnectField( instance, this );
// always write force fields
if ( m_Flags & FieldFlags::Force )
{
return data;
}
// check for empty/null/invalid state
if ( !data->ShouldSerialize() )
{
return NULL;
}
// don't write field at the default value
DataPtr defaultData = CreateDefaultData();
if ( defaultData.ReferencesObject() && defaultData->Equals(data) )
{
return NULL;
}
return data;
}
bool Composite::Equals(void* a, void* b) const
{
if (a == b)
{
return true;
}
if (!a || !b)
{
return false;
}
DynArray< Field >::ConstIterator itr = m_Fields.Begin();
DynArray< Field >::ConstIterator end = m_Fields.End();
for ( ; itr != end; ++itr )
{
const Field* field = &*itr;
// create data objects
DataPtr aData = field->CreateData();
DataPtr bData = field->CreateData();
// connnect
aData->ConnectField(a, field);
bData->ConnectField(b, field);
bool equality = aData->Equals( bData );
// disconnect
aData->Disconnect();
bData->Disconnect();
if ( !equality )
{
return false;
}
}
return true;
}