OptionValueUInt64.h

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//===-- OptionValueUInt64.h --------------------------------------*- C++
//-*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
 
#ifndef LLDB_INTERPRETER_OPTIONVALUEUINT64_H
#define LLDB_INTERPRETER_OPTIONVALUEUINT64_H
 
#include "lldb/Interpreter/OptionValue.h"
 
namespace lldb_private {
 
class OptionValueUInt64 : public Cloneable<OptionValueUInt64, OptionValue> {
public:
  OptionValueUInt64() = default;
 
  OptionValueUInt64(uint64_t value)
      : m_current_value(value), m_default_value(value) {}
 
  OptionValueUInt64(uint64_t current_value, uint64_t default_value)
      : m_current_value(current_value), m_default_value(default_value) {}
 
  ~OptionValueUInt64() override = default;
 
  // Decode a uint64_t from "value_cstr" return a OptionValueUInt64 object
  // inside of a lldb::OptionValueSP object if all goes well. If the string
  // isn't a uint64_t value or any other error occurs, return an empty
  // lldb::OptionValueSP and fill error in with the correct stuff.
  static lldb::OptionValueSP Create(llvm::StringRef value_str, Status &error);
  // Virtual subclass pure virtual overrides
 
  OptionValue::Type GetType() const override { return eTypeUInt64; }
 
  void DumpValue(const ExecutionContext *exe_ctx, Stream &strm,
                 uint32_t dump_mask) override;
 
  llvm::json::Value ToJSON(const ExecutionContext *exe_ctx) override {
    return m_current_value;
  }
 
  Status
  SetValueFromString(llvm::StringRef value,
                     VarSetOperationType op = eVarSetOperationAssign) override;
 
  void Clear() override {
    m_current_value = m_default_value;
    m_value_was_set = false;
  }
 
  // Subclass specific functions
 
  const uint64_t &operator=(uint64_t value) {
    m_current_value = value;
    return m_current_value;
  }
 
  operator uint64_t() const { return m_current_value; }
 
  uint64_t GetCurrentValue() const { return m_current_value; }
 
  uint64_t GetDefaultValue() const { return m_default_value; }
 
  bool SetCurrentValue(uint64_t value) {
    if (value >= m_min_value && value <= m_max_value) {
      m_current_value = value;
      return true;
    }
    return false;
  }
 
  bool SetDefaultValue(uint64_t value) {
    if (value >= m_min_value && value <= m_max_value) {
      m_default_value = value;
      return true;
    }
    return false;
  }
 
  void SetMinimumValue(int64_t v) { m_min_value = v; }
 
  uint64_t GetMinimumValue() const { return m_min_value; }
 
  void SetMaximumValue(int64_t v) { m_max_value = v; }
 
  uint64_t GetMaximumValue() const { return m_max_value; }
 
protected:
  uint64_t m_current_value = 0;
  uint64_t m_default_value = 0;
  uint64_t m_min_value = std::numeric_limits<uint64_t>::min();
  uint64_t m_max_value = std::numeric_limits<uint64_t>::max();
};
 
} // namespace lldb_private
 
#endif // LLDB_INTERPRETER_OPTIONVALUEUINT64_H