unique_name_supply.h

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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#ifndef TVM_IR_UNIQUE_NAME_SUPPLY_H_
#define TVM_IR_UNIQUE_NAME_SUPPLY_H_
 
#include <tvm/ffi/reflection/registry.h>
#include <tvm/ir/expr.h>
 
#include <cstdint>
#include <string>
#include <utility>
 
namespace tvm {
 
class UniqueNameSupplyObj : public ffi::Object {
 public:
  UniqueNameSupplyObj() = default;
 
  UniqueNameSupplyObj(const ffi::String& prefix, ffi::Map<ffi::String, int64_t> name_map)
      : prefix_(prefix), name_map(std::move(name_map)) {}
 
  ffi::String FreshName(const ffi::String& name, bool add_prefix = true,
                        bool add_underscore = true);
 
  ffi::String ReserveName(const ffi::String& name, bool add_prefix = true);
 
  bool ContainsName(const ffi::String& name, bool add_prefix = true);
 
  // Prefix for all GlobalVar names. It can be empty.
  std::string prefix_;
 
  static constexpr const bool _type_mutable = true;
 
  static void RegisterReflection() {
    namespace refl = tvm::ffi::reflection;
    refl::ObjectDef<UniqueNameSupplyObj>();
  }
 
  TVM_FFI_DECLARE_OBJECT_INFO_FINAL("ir.UniqueNameSupply", UniqueNameSupplyObj, ffi::Object);
 
 private:
  ffi::String AddPrefixToName(const ffi::String& name);
 
  std::string GetUniqueName(std::string name, bool add_underscore = true);
 
  ffi::Map<ffi::String, int64_t> name_map;
};
 
class UniqueNameSupply : public ffi::ObjectRef {
 public:
  TVM_TIRX_DLL explicit UniqueNameSupply(const ffi::String& prefix = "",
                                         ffi::Map<ffi::String, int64_t> name_map = {});
 
  template <typename Iter, typename Lambda>
  TVM_TIRX_DLL UniqueNameSupply(Iter begin, Iter end, Lambda f) : UniqueNameSupply("") {
    for (auto it = begin; it != end; ++it) {
      this->operator->()->ReserveName(f(*it), false);
    }
  }
 
  TVM_FFI_DEFINE_OBJECT_REF_METHODS_NOTNULLABLE(UniqueNameSupply, ffi::ObjectRef,
                                                UniqueNameSupplyObj);
};
 
}  // namespace tvm
 
#endif  // TVM_IR_UNIQUE_NAME_SUPPLY_H_