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#pragma once
#include <ATen/core/symbol.h>
#include <c10/util/ArrayRef.h>
#include <c10/util/Optional.h>
#include <ostream>
namespace at {
enum class NameType: uint8_t { BASIC, WILDCARD };
struct TORCH_API Dimname {
static Dimname fromSymbol(Symbol name);
static Dimname wildcard();
static bool isValidName(const std::string& name);
NameType type() const { return type_; }
Symbol symbol() const { return name_; }
bool isBasic() const { return type_ == NameType::BASIC; }
bool isWildcard() const { return type_ == NameType::WILDCARD; }
bool matches(Dimname other) const;
c10::optional<Dimname> unify(Dimname other) const;
private:
Dimname(Symbol name)
: name_(name), type_(NameType::BASIC) {}
Dimname(Symbol name, NameType type)
: name_(name), type_(type) {}
Symbol name_;
NameType type_;
};
using DimnameList = c10::ArrayRef<Dimname>;
TORCH_API std::ostream& operator<<(std::ostream& out, const Dimname& dimname);
inline bool operator==(const Dimname& lhs, const Dimname& rhs) {
return lhs.symbol() == rhs.symbol();
}
inline bool operator!=(const Dimname& lhs, const Dimname& rhs) {
return !(lhs == rhs);
}
} // namespace at
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