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// Debug-mode error formatting implementation -*- C++ -*- |
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|
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// Copyright (C) 2003-2021 Free Software Foundation, Inc. |
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// |
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// This file is part of the GNU ISO C++ Library. This library is free |
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// software; you can redistribute it and/or modify it under the |
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// terms of the GNU General Public License as published by the |
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// Free Software Foundation; either version 3, or (at your option) |
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// any later version. |
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|
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// This library is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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// GNU General Public License for more details. |
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|
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// Under Section 7 of GPL version 3, you are granted additional |
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// permissions described in the GCC Runtime Library Exception, version |
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// 3.1, as published by the Free Software Foundation. |
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|
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// You should have received a copy of the GNU General Public License and |
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// a copy of the GCC Runtime Library Exception along with this program; |
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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// <http://www.gnu.org/licenses/>. |
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|
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/** @file debug/formatter.h |
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* This file is a GNU debug extension to the Standard C++ Library. |
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*/ |
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|
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#ifndef _GLIBCXX_DEBUG_FORMATTER_H |
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#define _GLIBCXX_DEBUG_FORMATTER_H 1 |
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|
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#include <bits/c++config.h> |
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|
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#if __cpp_rtti |
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# include <typeinfo> |
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# define _GLIBCXX_TYPEID(_Type) &typeid(_Type) |
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#else |
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namespace std |
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{ |
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class type_info; |
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} |
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# define _GLIBCXX_TYPEID(_Type) 0 |
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#endif |
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|
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#if __cplusplus >= 201103L |
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namespace __gnu_cxx |
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{ |
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_GLIBCXX_BEGIN_NAMESPACE_VERSION |
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|
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template<typename _Iterator, typename _Container> |
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class __normal_iterator; |
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|
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_GLIBCXX_END_NAMESPACE_VERSION |
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} |
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|
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namespace std |
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{ |
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_GLIBCXX_BEGIN_NAMESPACE_VERSION |
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|
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template<typename _Iterator> |
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class reverse_iterator; |
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|
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template<typename _Iterator> |
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class move_iterator; |
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|
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_GLIBCXX_END_NAMESPACE_VERSION |
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} |
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#endif |
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|
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namespace __gnu_debug |
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{ |
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using std::type_info; |
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|
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template<typename _Iterator> |
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_GLIBCXX_CONSTEXPR |
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bool __check_singular(_Iterator const&); |
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|
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class _Safe_sequence_base; |
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|
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template<typename _Iterator, typename _Sequence, typename _Category> |
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class _Safe_iterator; |
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|
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template<typename _Iterator, typename _Sequence> |
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class _Safe_local_iterator; |
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|
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template<typename _Sequence> |
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class _Safe_sequence; |
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|
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enum _Debug_msg_id |
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{ |
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// General checks |
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__msg_valid_range, |
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__msg_insert_singular, |
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__msg_insert_different, |
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__msg_erase_bad, |
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__msg_erase_different, |
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__msg_subscript_oob, |
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__msg_empty, |
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__msg_unpartitioned, |
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__msg_unpartitioned_pred, |
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__msg_unsorted, |
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__msg_unsorted_pred, |
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__msg_not_heap, |
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__msg_not_heap_pred, |
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// std::bitset checks |
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__msg_bad_bitset_write, |
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__msg_bad_bitset_read, |
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__msg_bad_bitset_flip, |
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// std::list checks |
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__msg_self_splice, |
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__msg_splice_alloc, |
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__msg_splice_bad, |
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__msg_splice_other, |
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__msg_splice_overlap, |
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// iterator checks |
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__msg_init_singular, |
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__msg_init_copy_singular, |
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__msg_init_const_singular, |
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__msg_copy_singular, |
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__msg_bad_deref, |
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__msg_bad_inc, |
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__msg_bad_dec, |
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__msg_iter_subscript_oob, |
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__msg_advance_oob, |
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__msg_retreat_oob, |
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__msg_iter_compare_bad, |
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__msg_compare_different, |
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__msg_iter_order_bad, |
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__msg_order_different, |
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__msg_distance_bad, |
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__msg_distance_different, |
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// istream_iterator |
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__msg_deref_istream, |
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__msg_inc_istream, |
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// ostream_iterator |
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__msg_output_ostream, |
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// istreambuf_iterator |
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__msg_deref_istreambuf, |
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__msg_inc_istreambuf, |
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// forward_list |
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__msg_insert_after_end, |
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__msg_erase_after_bad, |
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__msg_valid_range2, |
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// unordered container local iterators |
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__msg_local_iter_compare_bad, |
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__msg_non_empty_range, |
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// self move assign (no longer used) |
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__msg_self_move_assign, |
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// unordered container buckets |
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__msg_bucket_index_oob, |
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__msg_valid_load_factor, |
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// others |
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__msg_equal_allocs, |
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__msg_insert_range_from_self, |
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__msg_irreflexive_ordering |
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}; |
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|
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class _Error_formatter |
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{ |
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// Tags denoting the type of parameter for construction |
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struct _Is_iterator { }; |
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struct _Is_iterator_value_type { }; |
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struct _Is_sequence { }; |
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struct _Is_instance { }; |
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|
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public: |
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/// Whether an iterator is constant, mutable, or unknown |
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enum _Constness |
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{ |
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__unknown_constness, |
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__const_iterator, |
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__mutable_iterator, |
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__last_constness |
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}; |
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|
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// The state of the iterator (fine-grained), if we know it. |
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enum _Iterator_state |
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{ |
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__unknown_state, |
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__singular, // singular, may still be attached to a sequence |
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__begin, // dereferenceable, and at the beginning |
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__middle, // dereferenceable, not at the beginning |
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__end, // past-the-end, may be at beginning if sequence empty |
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__before_begin, // before begin |
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__rbegin, // dereferenceable, and at the reverse-beginning |
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__rmiddle, // reverse-dereferenceable, not at the reverse-beginning |
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__rend, // reverse-past-the-end |
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__last_state |
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}; |
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|
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// A parameter that may be referenced by an error message |
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struct _Parameter |
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{ |
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enum |
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{ |
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__unused_param, |
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__iterator, |
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__sequence, |
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__integer, |
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__string, |
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__instance, |
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__iterator_value_type |
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} _M_kind; |
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|
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struct _Type |
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{ |
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const char* _M_name; |
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const type_info* _M_type; |
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}; |
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|
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struct _Instance : _Type |
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{ |
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const void* _M_address; |
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}; |
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|
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union |
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{ |
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// When _M_kind == __iterator |
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struct : _Instance |
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{ |
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_Constness _M_constness; |
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_Iterator_state _M_state; |
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const void* _M_sequence; |
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const type_info* _M_seq_type; |
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} _M_iterator; |
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|
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// When _M_kind == __sequence |
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_Instance _M_sequence; |
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|
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// When _M_kind == __integer |
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struct |
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{ |
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const char* _M_name; |
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long _M_value; |
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} _M_integer; |
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|
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// When _M_kind == __string |
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struct |
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{ |
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const char* _M_name; |
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const char* _M_value; |
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} _M_string; |
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|
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// When _M_kind == __instance |
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_Instance _M_instance; |
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|
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// When _M_kind == __iterator_value_type |
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_Type _M_iterator_value_type; |
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} _M_variant; |
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|
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_Parameter() : _M_kind(__unused_param), _M_variant() { } |
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|
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_Parameter(long __value, const char* __name) |
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: _M_kind(__integer), _M_variant() |
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{ |
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_M_variant._M_integer._M_name = __name; |
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_M_variant._M_integer._M_value = __value; |
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} |
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|
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_Parameter(const char* __value, const char* __name) |
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: _M_kind(__string), _M_variant() |
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{ |
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_M_variant._M_string._M_name = __name; |
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_M_variant._M_string._M_value = __value; |
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} |
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|
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template<typename _Iterator, typename _Sequence, typename _Category> |
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_Parameter(_Safe_iterator<_Iterator, _Sequence, _Category> const& __it, |
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const char* __name, _Is_iterator) |
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: _M_kind(__iterator), _M_variant() |
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{ |
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_M_variant._M_iterator._M_name = __name; |
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_M_variant._M_iterator._M_address = std::__addressof(__it); |
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_M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(_Iterator); |
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_M_variant._M_iterator._M_constness = |
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__it._S_constant() ? __const_iterator : __mutable_iterator; |
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_M_variant._M_iterator._M_sequence = __it._M_get_sequence(); |
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_M_variant._M_iterator._M_seq_type = _GLIBCXX_TYPEID(_Sequence); |
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|
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if (__it._M_singular()) |
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_M_variant._M_iterator._M_state = __singular; |
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else |
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{ |
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if (__it._M_is_before_begin()) |
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_M_variant._M_iterator._M_state = __before_begin; |
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else if (__it._M_is_end()) |
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_M_variant._M_iterator._M_state = __end; |
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else if (__it._M_is_begin()) |
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_M_variant._M_iterator._M_state = __begin; |
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else |
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_M_variant._M_iterator._M_state = __middle; |
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} |
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} |
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|
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template<typename _Iterator, typename _Sequence> |
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_Parameter(_Safe_local_iterator<_Iterator, _Sequence> const& __it, |
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const char* __name, _Is_iterator) |
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: _M_kind(__iterator), _M_variant() |
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{ |
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_M_variant._M_iterator._M_name = __name; |
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_M_variant._M_iterator._M_address = std::__addressof(__it); |
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_M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(_Iterator); |
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_M_variant._M_iterator._M_constness = |
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__it._S_constant() ? __const_iterator : __mutable_iterator; |
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_M_variant._M_iterator._M_sequence = __it._M_get_sequence(); |
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_M_variant._M_iterator._M_seq_type = _GLIBCXX_TYPEID(_Sequence); |
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|
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if (__it._M_singular()) |
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_M_variant._M_iterator._M_state = __singular; |
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else |
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{ |
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if (__it._M_is_end()) |
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_M_variant._M_iterator._M_state = __end; |
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else if (__it._M_is_begin()) |
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_M_variant._M_iterator._M_state = __begin; |
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else |
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_M_variant._M_iterator._M_state = __middle; |
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} |
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} |
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|
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template<typename _Type> |
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_Parameter(const _Type* const& __it, const char* __name, _Is_iterator) |
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: _M_kind(__iterator), _M_variant() |
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{ |
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_M_variant._M_iterator._M_name = __name; |
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_M_variant._M_iterator._M_address = std::__addressof(__it); |
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_M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); |
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_M_variant._M_iterator._M_constness = __const_iterator; |
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_M_variant._M_iterator._M_state = __it ? __unknown_state : __singular; |
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_M_variant._M_iterator._M_sequence = 0; |
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_M_variant._M_iterator._M_seq_type = 0; |
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} |
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|
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template<typename _Type> |
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_Parameter(_Type* const& __it, const char* __name, _Is_iterator) |
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: _M_kind(__iterator), _M_variant() |
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{ |
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_M_variant._M_iterator._M_name = __name; |
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_M_variant._M_iterator._M_address = std::__addressof(__it); |
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_M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); |
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_M_variant._M_iterator._M_constness = __mutable_iterator; |
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_M_variant._M_iterator._M_state = __it ? __unknown_state : __singular; |
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_M_variant._M_iterator._M_sequence = 0; |
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_M_variant._M_iterator._M_seq_type = 0; |
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} |
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|
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template<typename _Iterator> |
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_Parameter(_Iterator const& __it, const char* __name, _Is_iterator) |
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: _M_kind(__iterator), _M_variant() |
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{ |
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_M_variant._M_iterator._M_name = __name; |
| 352 |
_M_variant._M_iterator._M_address = std::__addressof(__it); |
| 353 |
_M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); |
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_M_variant._M_iterator._M_constness = __unknown_constness; |
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_M_variant._M_iterator._M_state = |
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__gnu_debug::__check_singular(__it) ? __singular : __unknown_state; |
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_M_variant._M_iterator._M_sequence = 0; |
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_M_variant._M_iterator._M_seq_type = 0; |
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} |
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|
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#if __cplusplus >= 201103L |
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// The following constructors are only defined in C++11 to take |
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// advantage of the constructor delegation feature. |
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template<typename _Iterator, typename _Container> |
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_Parameter( |
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__gnu_cxx::__normal_iterator<_Iterator, _Container> const& __it, |
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const char* __name, _Is_iterator) |
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: _Parameter(__it.base(), __name, _Is_iterator{}) |
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{ _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); } |
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|
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template<typename _Iterator> |
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_Parameter(std::reverse_iterator<_Iterator> const& __it, |
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const char* __name, _Is_iterator) |
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: _Parameter(__it.base(), __name, _Is_iterator{}) |
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{ |
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_M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); |
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_M_variant._M_iterator._M_state |
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= _S_reverse_state(_M_variant._M_iterator._M_state); |
| 379 |
} |
| 380 |
|
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template<typename _Iterator, typename _Sequence, typename _Category> |
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_Parameter(std::reverse_iterator<_Safe_iterator<_Iterator, _Sequence, |
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_Category>> const& __it, |
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const char* __name, _Is_iterator) |
| 385 |
: _Parameter(__it.base(), __name, _Is_iterator{}) |
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{ |
| 387 |
_M_variant._M_iterator._M_type |
| 388 |
= _GLIBCXX_TYPEID(std::reverse_iterator<_Iterator>); |
| 389 |
_M_variant._M_iterator._M_state |
| 390 |
= _S_reverse_state(_M_variant._M_iterator._M_state); |
| 391 |
} |
| 392 |
|
| 393 |
template<typename _Iterator> |
| 394 |
_Parameter(std::move_iterator<_Iterator> const& __it, |
| 395 |
const char* __name, _Is_iterator) |
| 396 |
: _Parameter(__it.base(), __name, _Is_iterator{}) |
| 397 |
{ _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); } |
| 398 |
|
| 399 |
template<typename _Iterator, typename _Sequence, typename _Category> |
| 400 |
_Parameter(std::move_iterator<_Safe_iterator<_Iterator, _Sequence, |
| 401 |
_Category>> const& __it, |
| 402 |
const char* __name, _Is_iterator) |
| 403 |
: _Parameter(__it.base(), __name, _Is_iterator{}) |
| 404 |
{ |
| 405 |
_M_variant._M_iterator._M_type |
| 406 |
= _GLIBCXX_TYPEID(std::move_iterator<_Iterator>); |
| 407 |
} |
| 408 |
|
| 409 |
private: |
| 410 |
_Iterator_state |
| 411 |
_S_reverse_state(_Iterator_state __state) |
| 412 |
{ |
| 413 |
switch (__state) |
| 414 |
{ |
| 415 |
case __begin: |
| 416 |
return __rend; |
| 417 |
case __middle: |
| 418 |
return __rmiddle; |
| 419 |
case __end: |
| 420 |
return __rbegin; |
| 421 |
default: |
| 422 |
return __state; |
| 423 |
} |
| 424 |
} |
| 425 |
|
| 426 |
public: |
| 427 |
#endif |
| 428 |
|
| 429 |
template<typename _Sequence> |
| 430 |
_Parameter(const _Safe_sequence<_Sequence>& __seq, |
| 431 |
const char* __name, _Is_sequence) |
| 432 |
: _M_kind(__sequence), _M_variant() |
| 433 |
{ |
| 434 |
_M_variant._M_sequence._M_name = __name; |
| 435 |
_M_variant._M_sequence._M_address = |
| 436 |
static_cast<const _Sequence*>(std::__addressof(__seq)); |
| 437 |
_M_variant._M_sequence._M_type = _GLIBCXX_TYPEID(_Sequence); |
| 438 |
} |
| 439 |
|
| 440 |
template<typename _Sequence> |
| 441 |
_Parameter(const _Sequence& __seq, const char* __name, _Is_sequence) |
| 442 |
: _M_kind(__sequence), _M_variant() |
| 443 |
{ |
| 444 |
_M_variant._M_sequence._M_name = __name; |
| 445 |
_M_variant._M_sequence._M_address = std::__addressof(__seq); |
| 446 |
_M_variant._M_sequence._M_type = _GLIBCXX_TYPEID(_Sequence); |
| 447 |
} |
| 448 |
|
| 449 |
template<typename _Iterator> |
| 450 |
_Parameter(const _Iterator& __it, const char* __name, |
| 451 |
_Is_iterator_value_type) |
| 452 |
: _M_kind(__iterator_value_type), _M_variant() |
| 453 |
{ |
| 454 |
_M_variant._M_iterator_value_type._M_name = __name; |
| 455 |
_M_variant._M_iterator_value_type._M_type = |
| 456 |
_GLIBCXX_TYPEID(typename std::iterator_traits<_Iterator>::value_type); |
| 457 |
} |
| 458 |
|
| 459 |
template<typename _Type> |
| 460 |
_Parameter(const _Type& __inst, const char* __name, _Is_instance) |
| 461 |
: _M_kind(__instance), _M_variant() |
| 462 |
{ |
| 463 |
_M_variant._M_instance._M_name = __name; |
| 464 |
_M_variant._M_instance._M_address = &__inst; |
| 465 |
_M_variant._M_instance._M_type = _GLIBCXX_TYPEID(_Type); |
| 466 |
} |
| 467 |
|
| 468 |
#if !_GLIBCXX_INLINE_VERSION |
| 469 |
void |
| 470 |
_M_print_field(const _Error_formatter* __formatter, |
| 471 |
const char* __name) const _GLIBCXX_DEPRECATED; |
| 472 |
|
| 473 |
void |
| 474 |
_M_print_description(const _Error_formatter* __formatter) |
| 475 |
const _GLIBCXX_DEPRECATED; |
| 476 |
#endif |
| 477 |
}; |
| 478 |
|
| 479 |
template<typename _Iterator> |
| 480 |
_Error_formatter& |
| 481 |
_M_iterator(const _Iterator& __it, const char* __name = 0) |
| 482 |
{ |
| 483 |
if (_M_num_parameters < std::size_t(__max_parameters)) |
| 484 |
_M_parameters[_M_num_parameters++] = _Parameter(__it, __name, |
| 485 |
_Is_iterator()); |
| 486 |
return *this; |
| 487 |
} |
| 488 |
|
| 489 |
template<typename _Iterator> |
| 490 |
_Error_formatter& |
| 491 |
_M_iterator_value_type(const _Iterator& __it, |
| 492 |
const char* __name = 0) |
| 493 |
{ |
| 494 |
if (_M_num_parameters < __max_parameters) |
| 495 |
_M_parameters[_M_num_parameters++] = |
| 496 |
_Parameter(__it, __name, _Is_iterator_value_type()); |
| 497 |
return *this; |
| 498 |
} |
| 499 |
|
| 500 |
_Error_formatter& |
| 501 |
_M_integer(long __value, const char* __name = 0) |
| 502 |
{ |
| 503 |
if (_M_num_parameters < __max_parameters) |
| 504 |
_M_parameters[_M_num_parameters++] = _Parameter(__value, __name); |
| 505 |
return *this; |
| 506 |
} |
| 507 |
|
| 508 |
_Error_formatter& |
| 509 |
_M_string(const char* __value, const char* __name = 0) |
| 510 |
{ |
| 511 |
if (_M_num_parameters < __max_parameters) |
| 512 |
_M_parameters[_M_num_parameters++] = _Parameter(__value, __name); |
| 513 |
return *this; |
| 514 |
} |
| 515 |
|
| 516 |
template<typename _Sequence> |
| 517 |
_Error_formatter& |
| 518 |
_M_sequence(const _Sequence& __seq, const char* __name = 0) |
| 519 |
{ |
| 520 |
if (_M_num_parameters < __max_parameters) |
| 521 |
_M_parameters[_M_num_parameters++] = _Parameter(__seq, __name, |
| 522 |
_Is_sequence()); |
| 523 |
return *this; |
| 524 |
} |
| 525 |
|
| 526 |
template<typename _Type> |
| 527 |
_Error_formatter& |
| 528 |
_M_instance(const _Type& __inst, const char* __name = 0) |
| 529 |
{ |
| 530 |
if (_M_num_parameters < __max_parameters) |
| 531 |
_M_parameters[_M_num_parameters++] = _Parameter(__inst, __name, |
| 532 |
_Is_instance()); |
| 533 |
return *this; |
| 534 |
} |
| 535 |
|
| 536 |
_Error_formatter& |
| 537 |
_M_message(const char* __text) |
| 538 |
{ _M_text = __text; return *this; } |
| 539 |
|
| 540 |
// Kept const qualifier for backward compatibility, to keep the same |
| 541 |
// exported symbol. |
| 542 |
_Error_formatter& |
| 543 |
_M_message(_Debug_msg_id __id) const throw (); |
| 544 |
|
| 545 |
_GLIBCXX_NORETURN void |
| 546 |
_M_error() const; |
| 547 |
|
| 548 |
#if !_GLIBCXX_INLINE_VERSION |
| 549 |
template<typename _Tp> |
| 550 |
void |
| 551 |
_M_format_word(char*, int, const char*, _Tp) |
| 552 |
const throw () _GLIBCXX_DEPRECATED; |
| 553 |
|
| 554 |
void |
| 555 |
_M_print_word(const char* __word) const _GLIBCXX_DEPRECATED; |
| 556 |
|
| 557 |
void |
| 558 |
_M_print_string(const char* __string) const _GLIBCXX_DEPRECATED; |
| 559 |
#endif |
| 560 |
|
| 561 |
private: |
| 562 |
_Error_formatter(const char* __file, unsigned int __line, |
| 563 |
const char* __function) |
| 564 |
: _M_file(__file), _M_line(__line), _M_num_parameters(0), _M_text(0) |
| 565 |
, _M_function(__function) |
| 566 |
{ } |
| 567 |
|
| 568 |
#if !_GLIBCXX_INLINE_VERSION |
| 569 |
void |
| 570 |
_M_get_max_length() const throw () _GLIBCXX_DEPRECATED; |
| 571 |
#endif |
| 572 |
|
| 573 |
enum { __max_parameters = 9 }; |
| 574 |
|
| 575 |
const char* _M_file; |
| 576 |
unsigned int _M_line; |
| 577 |
_Parameter _M_parameters[__max_parameters]; |
| 578 |
unsigned int _M_num_parameters; |
| 579 |
const char* _M_text; |
| 580 |
const char* _M_function; |
| 581 |
|
| 582 |
public: |
| 583 |
static _Error_formatter& |
| 584 |
_S_at(const char* __file, unsigned int __line, const char* __function) |
| 585 |
{ |
| 586 |
static _Error_formatter __formatter(__file, __line, __function); |
| 587 |
return __formatter; |
| 588 |
} |
| 589 |
}; |
| 590 |
} // namespace __gnu_debug |
| 591 |
|
| 592 |
#undef _GLIBCXX_TYPEID |
| 593 |
|
| 594 |
#endif |
