bool Reflection::accum_conv_path(const Type& source, const Type& dest, ConverterList& conv, std::vector<const Type* > &chain, CastType castType)
{
// break unwanted loops
if (std::find(chain.begin(), chain.end(), &source) != chain.end())
return false;
// store the type being processed to avoid loops
chain.push_back(&source);
// search a converter from "source"
StaticData::ConverterMapMap::const_iterator i = getOrCreateStaticData().convmap.find(&source);
if (i == getOrCreateStaticData().convmap.end())
return false;
// search a converter to "dest"
const StaticData::ConverterMap& cmap = i->second;
StaticData::ConverterMap::const_iterator j = cmap.find(&dest);
if (j != cmap.end() && (j->second->getCastType() == castType))
{
conv.push_back(j->second);
return true;
}
// search a undirect converter from "source" to ... to "dest"
for (j=cmap.begin(); j!=cmap.end(); ++j)
{
if ((j->second->getCastType() == castType) && accum_conv_path(*j->first, dest, conv, chain, castType))
{
conv.push_front(j->second);
return true;
}
}
return false;
}
const AdapterChain::ConverterList AdapterChain::translateConverterids(const AdapterChain::ConverteridList &&ids)
{
ConverterList ret;
ret.reserve(ids.size());
for (const auto id : ids)
{
ret.push_back(&global.converters.get(id));
}
return ret;
}
bool Reflection::getConversionPath(const Type& source, const Type& dest, ConverterList& conv)
{
ConverterList temp;
std::vector<const Type* > chain;
if (accum_conv_path(source, dest, temp, chain, STATIC_CAST))
{
conv.swap(temp);
return true;
}
if (source.isPointer() && dest.isPointer())
{
chain.clear();
temp.clear();
if (accum_conv_path(source, dest, temp, chain, DYNAMIC_CAST))
{
conv.swap(temp);
return true;
}
}
return false;
}