| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (C) 2016 by Joseph Mirabel, CNRS. | ||
| 3 | // | ||
| 4 | |||
| 5 | // Redistribution and use in source and binary forms, with or without | ||
| 6 | // modification, are permitted provided that the following conditions are | ||
| 7 | // met: | ||
| 8 | // | ||
| 9 | // 1. Redistributions of source code must retain the above copyright | ||
| 10 | // notice, this list of conditions and the following disclaimer. | ||
| 11 | // | ||
| 12 | // 2. Redistributions in binary form must reproduce the above copyright | ||
| 13 | // notice, this list of conditions and the following disclaimer in the | ||
| 14 | // documentation and/or other materials provided with the distribution. | ||
| 15 | // | ||
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| 20 | // HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | ||
| 27 | // DAMAGE. | ||
| 28 | // | ||
| 29 | // This software is provided "as is" without warranty of any kind, | ||
| 30 | // either expressed or implied, including but not limited to the | ||
| 31 | // implied warranties of fitness for a particular purpose. | ||
| 32 | // | ||
| 33 | // See the COPYING file for more information. | ||
| 34 | |||
| 35 | #ifndef HPP_UTIL_EXCEPTION_FACTORY_HH | ||
| 36 | #define HPP_UTIL_EXCEPTION_FACTORY_HH | ||
| 37 | |||
| 38 | #include <hpp/util/config.hh> | ||
| 39 | #include <sstream> | ||
| 40 | |||
| 41 | namespace hpp { | ||
| 42 | /// \cond | ||
| 43 | struct ThrowException {}; | ||
| 44 | |||
| 45 | template <typename exception> | ||
| 46 | struct ExceptionFactory; | ||
| 47 | |||
| 48 | namespace internal { | ||
| 49 | template <typename exception, typename In> | ||
| 50 | struct conditional_insertion_operator { | ||
| 51 | typedef ExceptionFactory<exception>& type; | ||
| 52 | |||
| 53 | 20 | static inline type run(ExceptionFactory<exception>& be, const In& t) { | |
| 54 | 20 | be.ss << t; | |
| 55 | 20 | return be; | |
| 56 | } | ||
| 57 | }; | ||
| 58 | } // namespace internal | ||
| 59 | /// \endcond | ||
| 60 | |||
| 61 | /// \brief Class to ease exception creation. | ||
| 62 | /// | ||
| 63 | /// You can use equivalently | ||
| 64 | /// \code | ||
| 65 | /// throw ::hpp::ExceptionFactory<std::runtime_error>() << "message" << | ||
| 66 | /// variable << ::hpp::ThrowException(); | ||
| 67 | /// \endcode | ||
| 68 | /// or | ||
| 69 | /// \code | ||
| 70 | /// HPP_THROW(std::runtime_error>, "message" << variable); | ||
| 71 | /// \endcode | ||
| 72 | template <typename exception> | ||
| 73 | struct HPP_UTIL_DLLAPI ExceptionFactory { | ||
| 74 | std::stringstream ss; | ||
| 75 | |||
| 76 | template <typename T> | ||
| 77 | inline typename internal::conditional_insertion_operator<exception, T>::type | ||
| 78 | 26 | operator<<(const T& t) { | |
| 79 | 20 | return internal::conditional_insertion_operator<exception, T>::run(*this, | |
| 80 | 26 | t); | |
| 81 | } | ||
| 82 | }; | ||
| 83 | |||
| 84 | /// \cond | ||
| 85 | // ---------------------------------------- | ||
| 86 | // ExceptionFactory - template specialization | ||
| 87 | // ---------------------------------------- | ||
| 88 | namespace internal { | ||
| 89 | template <typename exception> | ||
| 90 | struct conditional_insertion_operator<exception, ThrowException> { | ||
| 91 | typedef exception type; | ||
| 92 | |||
| 93 | 3 | static inline type run(ExceptionFactory<exception>& be, | |
| 94 | const ThrowException&) { | ||
| 95 |
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3 | return exception(be.ss.str().c_str()); |
| 96 | } | ||
| 97 | }; | ||
| 98 | } // namespace internal | ||
| 99 | /// \endcond | ||
| 100 | } // end of namespace hpp. | ||
| 101 | |||
| 102 | /// \addtogroup hpp_util_exceptions | ||
| 103 | /// \{ | ||
| 104 | |||
| 105 | /// \brief Throw an exception of type using MSG as a string stream | ||
| 106 | /// \code | ||
| 107 | /// HPP_THROW(std::runtime_error, "message" << variable); | ||
| 108 | /// \endcode | ||
| 109 | #define HPP_THROW(TYPE, MSG) \ | ||
| 110 | throw ::hpp::ExceptionFactory<TYPE>() << MSG << ::hpp::ThrowException() | ||
| 111 | |||
| 112 | /// \brief Throw an exception of type using MSG as a string stream | ||
| 113 | /// \code | ||
| 114 | /// HPP_THROW_WITH_LINEINFO(std::runtime_error>, "message" << variable); | ||
| 115 | /// \endcode | ||
| 116 | #define HPP_THROW_WITH_LINEINFO(TYPE, MSG) \ | ||
| 117 | HPP_THROW(TYPE, MSG << " at " << __FILE__ << ":" << __LINE__) | ||
| 118 | |||
| 119 | /// \} | ||
| 120 | |||
| 121 | #endif //! HPP_UTIL_EXCEPTION_FACTORY_HH | ||
| 122 |