#include "eval/eval/attribute_trail.h"

#include "absl/status/status.h"

#include "eval/public/cel_value.h"

#include "absl/status/statusor.h"

namespace google {

namespace api {

namespace expr {

namespace runtime {

// Creates AttributeTrail with attribute path incremented by "qualifier".

AttributeTrail AttributeTrail::Step(CelAttributeQualifier qualifier,

google::protobuf::Arena* arena) const {

// Cannot continue void trail

if (empty()) return AttributeTrail();

std::vector<CelAttributeQualifier> qualifiers = attribute_->qualifier_path();

qualifiers.push_back(qualifier);

return AttributeTrail(google::protobuf::Arena::Create<CelAttribute>(

arena, attribute_->variable(), std::move(qualifiers)));

}

} // namespace runtime

} // namespace expr

} // namespace api

} // namespace google