ceph/src/boost/libs/property_tree/include/boost/property_tree/exceptions.hpp

   1 // ----------------------------------------------------------------------------
   2 // Copyright (C) 2002-2006 Marcin Kalicinski
   3 // Copyright (C) 2009 Sebastian Redl
   4 //
   5 // Distributed under the Boost Software License, Version 1.0.
   6 // (See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8 //
   9 // For more information, see www.boost.org
  10 // ----------------------------------------------------------------------------
  11
  12 #ifndef BOOST_PROPERTY_TREE_EXCEPTIONS_HPP_INCLUDED
  13 #define BOOST_PROPERTY_TREE_EXCEPTIONS_HPP_INCLUDED
  14
  15 #include <boost/property_tree/ptree_fwd.hpp>
  16
  17 #include <boost/any.hpp>
  18 #include <string>
  19 #include <stdexcept>
  20
  21 namespace boost { namespace property_tree
  22 {
  23
  24     /// Base class for all property tree errors. Derives from
  25     /// @c std::runtime_error. Call member function @c what to get human
  26     /// readable message associated with the error.
  27     class ptree_error : public std::runtime_error
  28     {
  29     public:
  30         /// Instantiate a ptree_error instance with the given message.
  31         /// @param what The message to associate with this error.
  32         ptree_error(const std::string &what);
  33
  34         ~ptree_error() throw();
  35     };
  36
  37
  38     /// Error indicating that translation from given value to the property tree
  39     /// data_type (or vice versa) failed. Derives from ptree_error.
  40     class ptree_bad_data : public ptree_error
  41     {
  42     public:
  43         /// Instantiate a ptree_bad_data instance with the given message and
  44         /// data.
  45         /// @param what The message to associate with this error.
  46         /// @param data The value associated with this error that was the source
  47         ///             of the translation failure.
  48         template<class T> ptree_bad_data(const std::string &what,
  49                                          const T &data);
  50
  51         ~ptree_bad_data() throw();
  52
  53         /// Retrieve the data associated with this error. This is the source
  54         /// value that failed to be translated. You need to explicitly
  55         /// specify its type.
  56         template<class T> T data() const;
  57     private:
  58         boost::any m_data;
  59     };
  60
  61
  62     /// Error indicating that specified path does not exist. Derives from
  63     /// ptree_error.
  64     class ptree_bad_path : public ptree_error
  65     {
  66     public:
  67         /// Instantiate a ptree_bad_path with the given message and path data.
  68         /// @param what The message to associate with this error.
  69         /// @param path The path that could not be found in the property_tree.
  70         template<class T> ptree_bad_path(const std::string &what,
  71                                          const T &path);
  72
  73         ~ptree_bad_path() throw();
  74
  75         /// Retrieve the invalid path. You need to explicitly specify the
  76         /// type of path.
  77         template<class T> T path() const;
  78     private:
  79         boost::any m_path;
  80     };
  81
  82 }}
  83
  84 #include <boost/property_tree/detail/exception_implementation.hpp>
  85
  86 #endif