/usr/include/camp/property.hpp is in libcamp-dev 0.8.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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**
** Copyright (C) 2009-2014 TEGESO/TEGESOFT and/or its subsidiary(-ies) and mother company.
** Contact: Tegesoft Information (contact@tegesoft.com)
**
** This file is part of the CAMP library.
**
** The MIT License (MIT)
**
** Copyright (C) 2009-2014 TEGESO/TEGESOFT and/or its subsidiary(-ies) and mother company.
**
** Permission is hereby granted, free of charge, to any person obtaining a copy
** of this software and associated documentation files (the "Software"), to deal
** in the Software without restriction, including without limitation the rights
** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
** copies of the Software, and to permit persons to whom the Software is
** furnished to do so, subject to the following conditions:
**
** The above copyright notice and this permission notice shall be included in
** all copies or substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
** THE SOFTWARE.
**
****************************************************************************/
#ifndef CAMP_PROPERTY_HPP
#define CAMP_PROPERTY_HPP
#include <camp/config.hpp>
#include <camp/detail/getter.hpp>
#include <camp/tagholder.hpp>
#include <camp/type.hpp>
#include <string>
namespace camp
{
template <typename T> class ClassBuilder;
class Value;
class UserObject;
class ClassVisitor;
/**
* \brief Abstract representation of a property
*
* Properties are members of metaclasses. Their main purpose is to be get and/or set;
* They also provide detailed informations about their type.
*
* \sa PSimpleroperty, ArrayProperty, EnumProperty, ObjectProperty
*/
class CAMP_API Property : public TagHolder
{
public:
/**
* \brief Destructor
*/
virtual ~Property();
/**
* \brief Get the name of the property
*
* \return Name of the property
*/
const std::string& name() const;
/**
* \brief Get the type of the property
*
* \return Type of the property
*/
Type type() const;
/**
* \brief Check if the property is currently readable for a given object
*
* \param object Object
*
* \return True if the property can be read, false otherwise
*
* \throw NullObject object is invalid
*/
bool readable(const UserObject& object) const;
/**
* \brief Check if the property is currently writable for a given object
*
* \param object Object
*
* \return True if the property can be written, false otherwise
*
* \throw NullObject object is invalid
*/
bool writable(const UserObject& object) const;
/**
* \brief Get the current value of the property for a given object
*
* \param object Object
*
* \return Value of the property
*
* \throw NullObject object is invalid
* \throw ForbiddenRead property is not readable
*/
Value get(const UserObject& object) const;
/**
* \brief Set the current value of the property for a given object
*
* \param object Object
* \param value New value to assign to the property
*
* \throw NullObject \a object is invalid
* \throw ForbiddenWrite property is not writable
* \throw BadType \a value can't be converted to the property's type
*/
void set(const UserObject& object, const Value& value) const;
/**
* \brief Accept the visitation of a ClassVisitor
*
* \param visitor Visitor to accept
*/
virtual void accept(ClassVisitor& visitor) const;
protected:
template <typename T> friend class ClassBuilder;
friend class UserObject;
/**
* \brief Construct the property from its description
*
* \param name Name of the property
* \param type Type of the property
*/
Property(const std::string& name, Type type);
/**
* \brief Do the actual reading of the value
*
* This function is a pure virtual which has to be implemented in derived classes.
*
* \param object Object
*
* \return Value of the property
*/
virtual Value getValue(const UserObject& object) const = 0;
/**
* \brief Do the actual writing of the value
*
* This function is a pure virtual which has to be implemented in derived classes.
*
* \param object Object
* \param value New value to assign to the property
*/
virtual void setValue(const UserObject& object, const Value& value) const = 0;
/**
* \brief Check if the property can be read
*
* \return True if the property can be read, false otherwise
*/
virtual bool isReadable() const;
/**
* \brief Check if the property can be written
*
* \return True if the property can be written, false otherwise
*/
virtual bool isWritable() const;
private:
std::string m_name; ///< Name of the property
Type m_type; ///< Type of the property
detail::Getter<bool> m_readable; ///< Accessor to get the readable state of the property
detail::Getter<bool> m_writable; ///< Accessor to get the writable state of the property
};
} // namespace camp
#endif // CAMP_PROPERTY_HPP
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