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#pragma once
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <torch/csrc/Export.h>
#include <torch/csrc/jit/tensorexpr/fwd_decls.h>
namespace torch::jit::tensorexpr {
class VarHandle;
class Var;
using VarNameMap = std::unordered_map<VarPtr, std::string>;
// A manager to get unique names from vars.
// It starts with the name hints of the var and append "_" + $counter until it
// hits a unique name.
class TORCH_API UniqueNameManager {
public:
const std::string& get_unique_name(const VarHandle& v);
const std::string& get_unique_name(const VarPtr& v);
private:
friend class ScopedVarName;
VarNameMap unique_name_mapping_;
std::unordered_map<std::string, int> unique_name_count_;
std::unordered_set<std::string> all_unique_names_;
};
} // namespace torch::jit::tensorexpr
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