diff options
Diffstat (limited to 'contrib/src/boost/type_index/ctti_type_index.hpp')
-rw-r--r-- | contrib/src/boost/type_index/ctti_type_index.hpp | 424 |
1 files changed, 212 insertions, 212 deletions
diff --git a/contrib/src/boost/type_index/ctti_type_index.hpp b/contrib/src/boost/type_index/ctti_type_index.hpp index 611ad92..de7be74 100644 --- a/contrib/src/boost/type_index/ctti_type_index.hpp +++ b/contrib/src/boost/type_index/ctti_type_index.hpp @@ -1,212 +1,212 @@ -// -// Copyright (c) Antony Polukhin, 2013-2016. -// -// -// Distributed under the Boost Software License, Version 1.0. (See accompanying -// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -// - -#ifndef BOOST_TYPE_INDEX_CTTI_TYPE_INDEX_HPP -#define BOOST_TYPE_INDEX_CTTI_TYPE_INDEX_HPP - -/// \file ctti_type_index.hpp -/// \brief Contains boost::typeindex::ctti_type_index class that is constexpr if C++14 constexpr is supported by compiler. -/// -/// boost::typeindex::ctti_type_index class can be used as a drop-in replacement -/// for std::type_index. -/// -/// It is used in situations when typeid() method is not available or -/// BOOST_TYPE_INDEX_FORCE_NO_RTTI_COMPATIBILITY macro is defined. - -#include <boost/type_index/type_index_facade.hpp> -#include <boost/type_index/detail/compile_time_type_info.hpp> - -#include <cstring> -#include <boost/static_assert.hpp> -#include <boost/type_traits/remove_cv.hpp> -#include <boost/type_traits/remove_reference.hpp> - -#ifdef BOOST_HAS_PRAGMA_ONCE -# pragma once -#endif - -namespace boost { namespace typeindex { - -namespace detail { - -// That's the most trickiest part of the TypeIndex library: -// 1) we do not want to give user ability to manually construct and compare `struct-that-represents-type` -// 2) we need to distinguish between `struct-that-represents-type` and `const char*` -// 3) we need a thread-safe way to have references to instances `struct-that-represents-type` -// 4) we need a compile-time control to make sure that user does not copy or -// default construct `struct-that-represents-type` -// -// Solution would be the following: - -/// \class ctti_data -/// Standard-layout class with private constructors and assignment operators. -/// -/// You can not work with this class directly. The purpose of this class is to hold type info -/// \b when \b RTTI \b is \b off and allow ctti_type_index construction from itself. -/// -/// \b Example: -/// \code -/// const detail::ctti_data& foo(); -/// ... -/// type_index ti = type_index(foo()); -/// std::cout << ti.pretty_name(); -/// \endcode -class ctti_data { -#ifndef BOOST_NO_CXX11_DELETED_FUNCTIONS -public: - ctti_data() = delete; - ctti_data(const ctti_data&) = delete; - ctti_data& operator=(const ctti_data&) = delete; -#else -private: - ctti_data(); - ctti_data(const ctti_data&); - ctti_data& operator=(const ctti_data&); -#endif -}; - -} // namespace detail - -/// Helper method for getting detail::ctti_data of a template parameter T. -template <class T> -inline const detail::ctti_data& ctti_construct() BOOST_NOEXCEPT { - // Standard C++11, 5.2.10 Reinterpret cast: - // An object pointer can be explicitly converted to an object pointer of a different type. When a prvalue - // v of type "pointer to T1" is converted to the type "pointer to cv T2", the result is static_cast<cv - // T2*>(static_cast<cv void*>(v)) if both T1 and T2 are standard-layout types (3.9) and the alignment - // requirements of T2 are no stricter than those of T1, or if either type is void. Converting a prvalue of type - // "pointer to T1" to the type "pointer to T2" (where T1 and T2 are object types and where the alignment - // requirements of T2 are no stricter than those of T1) and back to its original type yields the original pointer - // value. - // - // Alignments are checked in `type_index_test_ctti_alignment.cpp` test. - return *reinterpret_cast<const detail::ctti_data*>(boost::detail::ctti<T>::n()); -} - -/// \class ctti_type_index -/// This class is a wrapper that pretends to work exactly like stl_type_index, but does -/// not require RTTI support. \b For \b description \b of \b functions \b see type_index_facade. -/// -/// This class on C++14 compatible compilers has following functions marked as constexpr: -/// * default constructor -/// * copy constructors and assignemnt operations -/// * class methods: name(), before(const ctti_type_index& rhs), equal(const ctti_type_index& rhs) -/// * static methods type_id<T>(), type_id_with_cvr<T>() -/// * comparison operators -/// -/// This class produces slightly longer type names, so consider using stl_type_index -/// in situations when typeid() is working. -class ctti_type_index: public type_index_facade<ctti_type_index, detail::ctti_data> { - const char* data_; - - inline std::size_t get_raw_name_length() const BOOST_NOEXCEPT; - - BOOST_CXX14_CONSTEXPR inline explicit ctti_type_index(const char* data) BOOST_NOEXCEPT - : data_(data) - {} - -public: - typedef detail::ctti_data type_info_t; - - BOOST_CXX14_CONSTEXPR inline ctti_type_index() BOOST_NOEXCEPT - : data_(boost::detail::ctti<void>::n()) - {} - - inline ctti_type_index(const type_info_t& data) BOOST_NOEXCEPT - : data_(reinterpret_cast<const char*>(&data)) - {} - - inline const type_info_t& type_info() const BOOST_NOEXCEPT; - BOOST_CXX14_CONSTEXPR inline const char* raw_name() const BOOST_NOEXCEPT; - BOOST_CXX14_CONSTEXPR inline const char* name() const BOOST_NOEXCEPT; - inline std::string pretty_name() const; - inline std::size_t hash_code() const BOOST_NOEXCEPT; - - BOOST_CXX14_CONSTEXPR inline bool equal(const ctti_type_index& rhs) const BOOST_NOEXCEPT; - BOOST_CXX14_CONSTEXPR inline bool before(const ctti_type_index& rhs) const BOOST_NOEXCEPT; - - template <class T> - BOOST_CXX14_CONSTEXPR inline static ctti_type_index type_id() BOOST_NOEXCEPT; - - template <class T> - BOOST_CXX14_CONSTEXPR inline static ctti_type_index type_id_with_cvr() BOOST_NOEXCEPT; - - template <class T> - inline static ctti_type_index type_id_runtime(const T& variable) BOOST_NOEXCEPT; -}; - - -inline const ctti_type_index::type_info_t& ctti_type_index::type_info() const BOOST_NOEXCEPT { - return *reinterpret_cast<const detail::ctti_data*>(data_); -} - - -BOOST_CXX14_CONSTEXPR inline bool ctti_type_index::equal(const ctti_type_index& rhs) const BOOST_NOEXCEPT { - const char* const left = raw_name(); - const char* const right = rhs.raw_name(); - return /*left == right ||*/ !boost::typeindex::detail::constexpr_strcmp(left, right); -} - -BOOST_CXX14_CONSTEXPR inline bool ctti_type_index::before(const ctti_type_index& rhs) const BOOST_NOEXCEPT { - const char* const left = raw_name(); - const char* const right = rhs.raw_name(); - return /*left != right &&*/ boost::typeindex::detail::constexpr_strcmp(left, right) < 0; -} - - -template <class T> -BOOST_CXX14_CONSTEXPR inline ctti_type_index ctti_type_index::type_id() BOOST_NOEXCEPT { - typedef BOOST_DEDUCED_TYPENAME boost::remove_reference<T>::type no_ref_t; - typedef BOOST_DEDUCED_TYPENAME boost::remove_cv<no_ref_t>::type no_cvr_t; - return ctti_type_index(boost::detail::ctti<no_cvr_t>::n()); -} - - - -template <class T> -BOOST_CXX14_CONSTEXPR inline ctti_type_index ctti_type_index::type_id_with_cvr() BOOST_NOEXCEPT { - return ctti_type_index(boost::detail::ctti<T>::n()); -} - - -template <class T> -inline ctti_type_index ctti_type_index::type_id_runtime(const T& variable) BOOST_NOEXCEPT { - return variable.boost_type_index_type_id_runtime_(); -} - - -BOOST_CXX14_CONSTEXPR inline const char* ctti_type_index::raw_name() const BOOST_NOEXCEPT { - return data_; -} - - -BOOST_CXX14_CONSTEXPR inline const char* ctti_type_index::name() const BOOST_NOEXCEPT { - return data_; -} - -inline std::size_t ctti_type_index::get_raw_name_length() const BOOST_NOEXCEPT { - return std::strlen(raw_name() + detail::ctti_skip_size_at_end); -} - - -inline std::string ctti_type_index::pretty_name() const { - std::size_t len = get_raw_name_length(); - while (raw_name()[len - 1] == ' ') --len; // MSVC sometimes adds whitespaces - return std::string(raw_name(), len); -} - - -inline std::size_t ctti_type_index::hash_code() const BOOST_NOEXCEPT { - return boost::hash_range(raw_name(), raw_name() + get_raw_name_length()); -} - - -}} // namespace boost::typeindex - -#endif // BOOST_TYPE_INDEX_CTTI_TYPE_INDEX_HPP - +//
+// Copyright (c) Antony Polukhin, 2013-2016.
+//
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BOOST_TYPE_INDEX_CTTI_TYPE_INDEX_HPP
+#define BOOST_TYPE_INDEX_CTTI_TYPE_INDEX_HPP
+
+/// \file ctti_type_index.hpp
+/// \brief Contains boost::typeindex::ctti_type_index class that is constexpr if C++14 constexpr is supported by compiler.
+///
+/// boost::typeindex::ctti_type_index class can be used as a drop-in replacement
+/// for std::type_index.
+///
+/// It is used in situations when typeid() method is not available or
+/// BOOST_TYPE_INDEX_FORCE_NO_RTTI_COMPATIBILITY macro is defined.
+
+#include <boost/type_index/type_index_facade.hpp>
+#include <boost/type_index/detail/compile_time_type_info.hpp>
+
+#include <cstring>
+#include <boost/static_assert.hpp>
+#include <boost/type_traits/remove_cv.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+# pragma once
+#endif
+
+namespace boost { namespace typeindex {
+
+namespace detail {
+
+// That's the most trickiest part of the TypeIndex library:
+// 1) we do not want to give user ability to manually construct and compare `struct-that-represents-type`
+// 2) we need to distinguish between `struct-that-represents-type` and `const char*`
+// 3) we need a thread-safe way to have references to instances `struct-that-represents-type`
+// 4) we need a compile-time control to make sure that user does not copy or
+// default construct `struct-that-represents-type`
+//
+// Solution would be the following:
+
+/// \class ctti_data
+/// Standard-layout class with private constructors and assignment operators.
+///
+/// You can not work with this class directly. The purpose of this class is to hold type info
+/// \b when \b RTTI \b is \b off and allow ctti_type_index construction from itself.
+///
+/// \b Example:
+/// \code
+/// const detail::ctti_data& foo();
+/// ...
+/// type_index ti = type_index(foo());
+/// std::cout << ti.pretty_name();
+/// \endcode
+class ctti_data {
+#ifndef BOOST_NO_CXX11_DELETED_FUNCTIONS
+public:
+ ctti_data() = delete;
+ ctti_data(const ctti_data&) = delete;
+ ctti_data& operator=(const ctti_data&) = delete;
+#else
+private:
+ ctti_data();
+ ctti_data(const ctti_data&);
+ ctti_data& operator=(const ctti_data&);
+#endif
+};
+
+} // namespace detail
+
+/// Helper method for getting detail::ctti_data of a template parameter T.
+template <class T>
+inline const detail::ctti_data& ctti_construct() BOOST_NOEXCEPT {
+ // Standard C++11, 5.2.10 Reinterpret cast:
+ // An object pointer can be explicitly converted to an object pointer of a different type. When a prvalue
+ // v of type "pointer to T1" is converted to the type "pointer to cv T2", the result is static_cast<cv
+ // T2*>(static_cast<cv void*>(v)) if both T1 and T2 are standard-layout types (3.9) and the alignment
+ // requirements of T2 are no stricter than those of T1, or if either type is void. Converting a prvalue of type
+ // "pointer to T1" to the type "pointer to T2" (where T1 and T2 are object types and where the alignment
+ // requirements of T2 are no stricter than those of T1) and back to its original type yields the original pointer
+ // value.
+ //
+ // Alignments are checked in `type_index_test_ctti_alignment.cpp` test.
+ return *reinterpret_cast<const detail::ctti_data*>(boost::detail::ctti<T>::n());
+}
+
+/// \class ctti_type_index
+/// This class is a wrapper that pretends to work exactly like stl_type_index, but does
+/// not require RTTI support. \b For \b description \b of \b functions \b see type_index_facade.
+///
+/// This class on C++14 compatible compilers has following functions marked as constexpr:
+/// * default constructor
+/// * copy constructors and assignemnt operations
+/// * class methods: name(), before(const ctti_type_index& rhs), equal(const ctti_type_index& rhs)
+/// * static methods type_id<T>(), type_id_with_cvr<T>()
+/// * comparison operators
+///
+/// This class produces slightly longer type names, so consider using stl_type_index
+/// in situations when typeid() is working.
+class ctti_type_index: public type_index_facade<ctti_type_index, detail::ctti_data> {
+ const char* data_;
+
+ inline std::size_t get_raw_name_length() const BOOST_NOEXCEPT;
+
+ BOOST_CXX14_CONSTEXPR inline explicit ctti_type_index(const char* data) BOOST_NOEXCEPT
+ : data_(data)
+ {}
+
+public:
+ typedef detail::ctti_data type_info_t;
+
+ BOOST_CXX14_CONSTEXPR inline ctti_type_index() BOOST_NOEXCEPT
+ : data_(boost::detail::ctti<void>::n())
+ {}
+
+ inline ctti_type_index(const type_info_t& data) BOOST_NOEXCEPT
+ : data_(reinterpret_cast<const char*>(&data))
+ {}
+
+ inline const type_info_t& type_info() const BOOST_NOEXCEPT;
+ BOOST_CXX14_CONSTEXPR inline const char* raw_name() const BOOST_NOEXCEPT;
+ BOOST_CXX14_CONSTEXPR inline const char* name() const BOOST_NOEXCEPT;
+ inline std::string pretty_name() const;
+ inline std::size_t hash_code() const BOOST_NOEXCEPT;
+
+ BOOST_CXX14_CONSTEXPR inline bool equal(const ctti_type_index& rhs) const BOOST_NOEXCEPT;
+ BOOST_CXX14_CONSTEXPR inline bool before(const ctti_type_index& rhs) const BOOST_NOEXCEPT;
+
+ template <class T>
+ BOOST_CXX14_CONSTEXPR inline static ctti_type_index type_id() BOOST_NOEXCEPT;
+
+ template <class T>
+ BOOST_CXX14_CONSTEXPR inline static ctti_type_index type_id_with_cvr() BOOST_NOEXCEPT;
+
+ template <class T>
+ inline static ctti_type_index type_id_runtime(const T& variable) BOOST_NOEXCEPT;
+};
+
+
+inline const ctti_type_index::type_info_t& ctti_type_index::type_info() const BOOST_NOEXCEPT {
+ return *reinterpret_cast<const detail::ctti_data*>(data_);
+}
+
+
+BOOST_CXX14_CONSTEXPR inline bool ctti_type_index::equal(const ctti_type_index& rhs) const BOOST_NOEXCEPT {
+ const char* const left = raw_name();
+ const char* const right = rhs.raw_name();
+ return /*left == right ||*/ !boost::typeindex::detail::constexpr_strcmp(left, right);
+}
+
+BOOST_CXX14_CONSTEXPR inline bool ctti_type_index::before(const ctti_type_index& rhs) const BOOST_NOEXCEPT {
+ const char* const left = raw_name();
+ const char* const right = rhs.raw_name();
+ return /*left != right &&*/ boost::typeindex::detail::constexpr_strcmp(left, right) < 0;
+}
+
+
+template <class T>
+BOOST_CXX14_CONSTEXPR inline ctti_type_index ctti_type_index::type_id() BOOST_NOEXCEPT {
+ typedef BOOST_DEDUCED_TYPENAME boost::remove_reference<T>::type no_ref_t;
+ typedef BOOST_DEDUCED_TYPENAME boost::remove_cv<no_ref_t>::type no_cvr_t;
+ return ctti_type_index(boost::detail::ctti<no_cvr_t>::n());
+}
+
+
+
+template <class T>
+BOOST_CXX14_CONSTEXPR inline ctti_type_index ctti_type_index::type_id_with_cvr() BOOST_NOEXCEPT {
+ return ctti_type_index(boost::detail::ctti<T>::n());
+}
+
+
+template <class T>
+inline ctti_type_index ctti_type_index::type_id_runtime(const T& variable) BOOST_NOEXCEPT {
+ return variable.boost_type_index_type_id_runtime_();
+}
+
+
+BOOST_CXX14_CONSTEXPR inline const char* ctti_type_index::raw_name() const BOOST_NOEXCEPT {
+ return data_;
+}
+
+
+BOOST_CXX14_CONSTEXPR inline const char* ctti_type_index::name() const BOOST_NOEXCEPT {
+ return data_;
+}
+
+inline std::size_t ctti_type_index::get_raw_name_length() const BOOST_NOEXCEPT {
+ return std::strlen(raw_name() + detail::ctti_skip_size_at_end);
+}
+
+
+inline std::string ctti_type_index::pretty_name() const {
+ std::size_t len = get_raw_name_length();
+ while (raw_name()[len - 1] == ' ') --len; // MSVC sometimes adds whitespaces
+ return std::string(raw_name(), len);
+}
+
+
+inline std::size_t ctti_type_index::hash_code() const BOOST_NOEXCEPT {
+ return boost::hash_range(raw_name(), raw_name() + get_raw_name_length());
+}
+
+
+}} // namespace boost::typeindex
+
+#endif // BOOST_TYPE_INDEX_CTTI_TYPE_INDEX_HPP
+
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