forked from OSchip/llvm-project
268 lines
7.5 KiB
C++
268 lines
7.5 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___DEBUG
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#define _LIBCPP___DEBUG
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#include <__assert>
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#include <__config>
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#include <cstddef>
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#include <type_traits>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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// Catch invalid uses of the legacy _LIBCPP_DEBUG toggle.
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#if defined(_LIBCPP_DEBUG) && _LIBCPP_DEBUG != 0 && !defined(_LIBCPP_ENABLE_DEBUG_MODE)
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# error "Enabling the debug mode now requires having configured the library with support for the debug mode"
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#endif
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#if defined(_LIBCPP_ENABLE_DEBUG_MODE) && !defined(_LIBCPP_CXX03_LANG) && !defined(_LIBCPP_DEBUG_RANDOMIZE_UNSPECIFIED_STABILITY)
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# define _LIBCPP_DEBUG_RANDOMIZE_UNSPECIFIED_STABILITY
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#endif
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#ifdef _LIBCPP_ENABLE_DEBUG_MODE
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# define _LIBCPP_DEBUG_ASSERT(x, m) _LIBCPP_ASSERT(::std::__libcpp_is_constant_evaluated() || (x), m)
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#else
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# define _LIBCPP_DEBUG_ASSERT(x, m) ((void)0)
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#endif
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#if defined(_LIBCPP_ENABLE_DEBUG_MODE) || defined(_LIBCPP_BUILDING_LIBRARY)
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_LIBCPP_BEGIN_NAMESPACE_STD
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struct _LIBCPP_TYPE_VIS __c_node;
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struct _LIBCPP_TYPE_VIS __i_node
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{
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void* __i_;
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__i_node* __next_;
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__c_node* __c_;
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__i_node(const __i_node&) = delete;
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__i_node& operator=(const __i_node&) = delete;
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_LIBCPP_INLINE_VISIBILITY
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__i_node(void* __i, __i_node* __next, __c_node* __c)
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: __i_(__i), __next_(__next), __c_(__c) {}
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~__i_node();
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};
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struct _LIBCPP_TYPE_VIS __c_node
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{
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void* __c_;
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__c_node* __next_;
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__i_node** beg_;
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__i_node** end_;
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__i_node** cap_;
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__c_node(const __c_node&) = delete;
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__c_node& operator=(const __c_node&) = delete;
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_LIBCPP_INLINE_VISIBILITY
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explicit __c_node(void* __c, __c_node* __next)
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: __c_(__c), __next_(__next), beg_(nullptr), end_(nullptr), cap_(nullptr) {}
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virtual ~__c_node();
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virtual bool __dereferenceable(const void*) const = 0;
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virtual bool __decrementable(const void*) const = 0;
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virtual bool __addable(const void*, ptrdiff_t) const = 0;
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virtual bool __subscriptable(const void*, ptrdiff_t) const = 0;
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void __add(__i_node* __i);
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_LIBCPP_HIDDEN void __remove(__i_node* __i);
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};
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template <class _Cont>
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struct _C_node
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: public __c_node
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{
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explicit _C_node(void* __c, __c_node* __n)
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: __c_node(__c, __n) {}
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virtual bool __dereferenceable(const void*) const;
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virtual bool __decrementable(const void*) const;
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virtual bool __addable(const void*, ptrdiff_t) const;
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virtual bool __subscriptable(const void*, ptrdiff_t) const;
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};
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template <class _Cont>
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inline bool
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_C_node<_Cont>::__dereferenceable(const void* __i) const
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{
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typedef typename _Cont::const_iterator iterator;
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const iterator* __j = static_cast<const iterator*>(__i);
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_Cont* _Cp = static_cast<_Cont*>(__c_);
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return _Cp->__dereferenceable(__j);
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}
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template <class _Cont>
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inline bool
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_C_node<_Cont>::__decrementable(const void* __i) const
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{
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typedef typename _Cont::const_iterator iterator;
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const iterator* __j = static_cast<const iterator*>(__i);
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_Cont* _Cp = static_cast<_Cont*>(__c_);
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return _Cp->__decrementable(__j);
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}
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template <class _Cont>
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inline bool
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_C_node<_Cont>::__addable(const void* __i, ptrdiff_t __n) const
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{
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typedef typename _Cont::const_iterator iterator;
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const iterator* __j = static_cast<const iterator*>(__i);
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_Cont* _Cp = static_cast<_Cont*>(__c_);
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return _Cp->__addable(__j, __n);
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}
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template <class _Cont>
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inline bool
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_C_node<_Cont>::__subscriptable(const void* __i, ptrdiff_t __n) const
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{
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typedef typename _Cont::const_iterator iterator;
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const iterator* __j = static_cast<const iterator*>(__i);
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_Cont* _Cp = static_cast<_Cont*>(__c_);
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return _Cp->__subscriptable(__j, __n);
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}
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class _LIBCPP_TYPE_VIS __libcpp_db
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{
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__c_node** __cbeg_;
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__c_node** __cend_;
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size_t __csz_;
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__i_node** __ibeg_;
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__i_node** __iend_;
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size_t __isz_;
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explicit __libcpp_db();
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public:
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__libcpp_db(const __libcpp_db&) = delete;
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__libcpp_db& operator=(const __libcpp_db&) = delete;
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~__libcpp_db();
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class __db_c_iterator;
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class __db_c_const_iterator;
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class __db_i_iterator;
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class __db_i_const_iterator;
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__db_c_const_iterator __c_end() const;
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__db_i_const_iterator __i_end() const;
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typedef __c_node*(_InsertConstruct)(void*, void*, __c_node*);
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template <class _Cont>
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_LIBCPP_INLINE_VISIBILITY static __c_node* __create_C_node(void *__mem, void *__c, __c_node *__next) {
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return ::new (__mem) _C_node<_Cont>(__c, __next);
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}
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template <class _Cont>
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_LIBCPP_INLINE_VISIBILITY
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void __insert_c(_Cont* __c)
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{
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__insert_c(static_cast<void*>(__c), &__create_C_node<_Cont>);
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}
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void __insert_i(void* __i);
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void __insert_c(void* __c, _InsertConstruct* __fn);
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void __erase_c(void* __c);
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void __insert_ic(void* __i, const void* __c);
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void __iterator_copy(void* __i, const void* __i0);
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void __erase_i(void* __i);
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void* __find_c_from_i(void* __i) const;
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void __invalidate_all(void* __c);
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__c_node* __find_c_and_lock(void* __c) const;
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__c_node* __find_c(void* __c) const;
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void unlock() const;
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void swap(void* __c1, void* __c2);
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bool __dereferenceable(const void* __i) const;
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bool __decrementable(const void* __i) const;
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bool __addable(const void* __i, ptrdiff_t __n) const;
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bool __subscriptable(const void* __i, ptrdiff_t __n) const;
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bool __less_than_comparable(const void* __i, const void* __j) const;
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private:
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_LIBCPP_HIDDEN
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__i_node* __insert_iterator(void* __i);
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_LIBCPP_HIDDEN
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__i_node* __find_iterator(const void* __i) const;
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friend _LIBCPP_FUNC_VIS __libcpp_db* __get_db();
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};
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_LIBCPP_FUNC_VIS __libcpp_db* __get_db();
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_LIBCPP_FUNC_VIS const __libcpp_db* __get_const_db();
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_LIBCPP_END_NAMESPACE_STD
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#endif // defined(_LIBCPP_ENABLE_DEBUG_MODE) || defined(_LIBCPP_BUILDING_LIBRARY)
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 inline void __debug_db_insert_c(_Tp* __c) {
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#ifdef _LIBCPP_ENABLE_DEBUG_MODE
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if (!__libcpp_is_constant_evaluated())
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__get_db()->__insert_c(__c);
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#else
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(void)(__c);
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#endif
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 inline void __debug_db_insert_i(_Tp* __i) {
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#ifdef _LIBCPP_ENABLE_DEBUG_MODE
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if (!__libcpp_is_constant_evaluated())
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__get_db()->__insert_i(__i);
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#else
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(void)(__i);
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#endif
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 inline void __debug_db_erase_c(_Tp* __c) {
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#ifdef _LIBCPP_ENABLE_DEBUG_MODE
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if (!__libcpp_is_constant_evaluated())
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__get_db()->__erase_c(__c);
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#else
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(void)(__c);
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#endif
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 inline void __debug_db_swap(_Tp* __lhs, _Tp* __rhs) {
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#ifdef _LIBCPP_ENABLE_DEBUG_MODE
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if (!__libcpp_is_constant_evaluated())
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__get_db()->swap(__lhs, __rhs);
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#else
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(void)(__lhs);
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(void)(__rhs);
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#endif
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}
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template <class _Tp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 inline void __debug_db_invalidate_all(_Tp* __c) {
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#ifdef _LIBCPP_ENABLE_DEBUG_MODE
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if (!__libcpp_is_constant_evaluated())
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__get_db()->__invalidate_all(__c);
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#else
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(void)(__c);
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#endif
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___DEBUG
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