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|
/*-----------------------------------------------------------------------------
| Copyright (c) 2013-2017, Nucleic Development Team.
|
| Distributed under the terms of the Modified BSD License.
|
| The full license is in the file LICENSE, distributed with this software.
|----------------------------------------------------------------------------*/
#pragma once
#include <memory>
#include <string>
#include "shareddata.h"
namespace kiwi
{
class Variable
{
public:
class Context
{
public:
Context() = default;
virtual ~Context() {} // LCOV_EXCL_LINE
};
Variable(Context *context = 0) : m_data(new VariableData("", context)) {}
Variable(std::string name, Context *context = 0) : m_data(new VariableData(std::move(name), context)) {}
Variable(const char *name, Context *context = 0) : m_data(new VariableData(name, context)) {}
Variable(const Variable&) = default;
Variable(Variable&&) noexcept = default;
~Variable() = default;
const std::string &name() const
{
return m_data->m_name;
}
void setName(const char *name)
{
m_data->m_name = name;
}
void setName(const std::string &name)
{
m_data->m_name = name;
}
Context *context() const
{
return m_data->m_context.get();
}
void setContext(Context *context)
{
m_data->m_context.reset(context);
}
double value() const
{
return m_data->m_value;
}
void setValue(double value)
{
m_data->m_value = value;
}
// operator== is used for symbolics
bool equals(const Variable &other)
{
return m_data == other.m_data;
}
Variable& operator=(const Variable&) = default;
Variable& operator=(Variable&&) noexcept = default;
private:
class VariableData : public SharedData
{
public:
VariableData(std::string name, Context *context) : SharedData(),
m_name(std::move(name)),
m_context(context),
m_value(0.0) {}
VariableData(const char *name, Context *context) : SharedData(),
m_name(name),
m_context(context),
m_value(0.0) {}
~VariableData() = default;
std::string m_name;
std::unique_ptr<Context> m_context;
double m_value;
private:
VariableData(const VariableData &other);
VariableData &operator=(const VariableData &other);
};
SharedDataPtr<VariableData> m_data;
friend bool operator<(const Variable &lhs, const Variable &rhs)
{
return lhs.m_data < rhs.m_data;
}
};
} // namespace kiwi
|
