/usr/include/camp/function.hpp is in libcamp0.7-dev 0.7.1.1-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 | /****************************************************************************
**
** Copyright (C) 2009-2010 TECHNOGERMA Systems France and/or its subsidiary(-ies).
** Contact: Technogerma Systems France Information (contact@technogerma.fr)
**
** This file is part of the CAMP library.
**
** CAMP is free software: you can redistribute it and/or modify
** it under the terms of the GNU Lesser General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** CAMP is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU Lesser General Public License for more details.
**
** You should have received a copy of the GNU Lesser General Public License
** along with CAMP. If not, see <http://www.gnu.org/licenses/>.
**
****************************************************************************/
#ifndef CAMP_FUNCTION_HPP
#define CAMP_FUNCTION_HPP
#include <camp/config.hpp>
#include <camp/detail/getter.hpp>
#include <camp/args.hpp>
#include <camp/tagholder.hpp>
#include <camp/type.hpp>
#include <camp/value.hpp>
#include <string>
#include <vector>
namespace camp
{
template <typename T> class ClassBuilder;
class UserObject;
class ClassVisitor;
/**
* \brief Abstract representation of a function
*
* Functions are members of metaclasses. Their main purpose is to be called; they also provide
* detailed informations about their prototype.
*/
class CAMP_API Function : public TagHolder
{
public:
/**
* \brief Destructor
*/
virtual ~Function();
/**
* \brief Get the name of the function
*
* \return Name of the function
*/
const std::string& name() const;
/**
* \brief Get the number of arguments of the function
*
* \return Total number of arguments taken by the function
*/
std::size_t argCount() const;
/**
* \brief Get the type of variable returned by the function
*
* \return Type of the result of the function
*/
Type returnType() const;
/**
* \brief Get the type of an argument given by its index
*
* \param index Index of the argument
*
* \return Type of the index-th argument
*
* \throw OutOfRange index is out of range
*/
Type argType(std::size_t index) const;
/**
* \brief Check if the function is currently callable for a given object
*
* \param object Object
*
* \return True if the function can be called, false otherwise
*
* \throw NullObject object is invalid
*/
bool callable(const UserObject& object) const;
/**
* \brief Call the function
*
* \param object Object
* \param args Arguments to pass to the function (empty list by default)
*
* \return Value returned by the function call
*
* \throw ForbiddenCall the function is not callable
* \throw NullObject object is invalid
* \throw NotEnoughArguments too few arguments are provided
* \throw BadArgument one of the arguments can't be converted to the requested type
*/
Value call(const UserObject& object, const Args& args = Args::empty) 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;
/**
* \brief Construct the function from its description
*
* \param name Name of the function
* \param returnType Type of the function result
* \param argTypes Types of the function arguments (empty array by default)
*
* \return Value returned by the function call
*/
Function(const std::string& name, Type returnType, const std::vector<Type>& argTypes = std::vector<Type>());
/**
* \brief Do the actual call
*
* This function is a pure virtual which has to be implemented in derived classes.
*
* \param object Object
* \param args Arguments to pass to the function
*
* \return Value returned by the function call
*
* \throw NullObject object is invalid
* \throw BadArgument one of the arguments can't be converted to the requested type
*/
virtual Value execute(const UserObject& object, const Args& args) const = 0;
private:
std::string m_name; ///< Name of the function
Type m_returnType; ///< Return type
std::vector<Type> m_argTypes; ///< Type of all the function arguments
detail::Getter<bool> m_callable; ///< Accessor to get the callable state of the function
};
} // namespace camp
#endif // CAMP_FUNCTION_HPP
|