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#include "name_service.h"
namespace NSQLComplete {
namespace {
class TNameService: public INameService {
public:
TNameService(IDocumentation::TPtr docs, INameService::TPtr origin)
: Docs_(std::move(docs))
, Origin_(std::move(origin))
{
}
NThreading::TFuture<TNameResponse> Lookup(const TNameRequest& request) const override {
return Origin_->Lookup(request).Apply([docs = Docs_, constraints = request.Constraints](auto f) {
TNameResponse response = f.ExtractValue();
for (TGenericName& name : response.RankedNames) {
name = std::visit([&](auto&& name) -> TGenericName {
using T = std::decay_t<decltype(name)>;
if constexpr (std::is_base_of_v<TDescribed, T> &&
std::is_base_of_v<TIdentifier, T>) {
T qualified = std::get<T>(constraints.Qualified(name));
name.Description = docs->Lookup(qualified.Identifier);
}
return std::move(name);
}, std::move(name));
}
return response;
});
}
private:
IDocumentation::TPtr Docs_;
INameService::TPtr Origin_;
};
} // namespace
INameService::TPtr MakeDocumentingNameService(IDocumentation::TPtr docs, INameService::TPtr origin) {
return new TNameService(std::move(docs), std::move(origin));
}
} // namespace NSQLComplete
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