Mercurial > hg > CbC > CbC_gcc
diff gcc/diagnostic-event-id.h @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/diagnostic-event-id.h Thu Feb 13 11:34:05 2020 +0900 @@ -0,0 +1,61 @@ +/* A class for referring to events within a diagnostic_path. + Copyright (C) 2019-2020 Free Software Foundation, Inc. + Contributed by David Malcolm <dmalcolm@redhat.com> + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#ifndef GCC_DIAGNOSTIC_EVENT_ID_H +#define GCC_DIAGNOSTIC_EVENT_ID_H + +/* A class for referring to events within a diagnostic_path. + + They are stored as 0-based offsets into the events, but + printed (e.g. via %@) as 1-based numbers. + + For example, a 3-event path has event offsets 0, 1, and 2, + which would be shown to the user as "(1)", "(2)" and "(3)". + + This has its own header so that pretty-print.c can use this + to implement "%@" without bringing in all of diagnostic_path + (which e.g. refers to "tree"). */ + +class diagnostic_event_id_t +{ + public: + diagnostic_event_id_t () : m_index (UNKNOWN_EVENT_IDX) {} + diagnostic_event_id_t (int zero_based_idx) : m_index (zero_based_idx) {} + + bool known_p () const { return m_index != UNKNOWN_EVENT_IDX; } + + int one_based () const + { + gcc_assert (known_p ()); + return m_index + 1; + } + + private: + static const int UNKNOWN_EVENT_IDX = -1; + int m_index; // zero-based +}; + +/* A pointer to a diagnostic_event_id_t, for use with the "%@" format + code, which will print a 1-based representation for it, with suitable + colorization, e.g. "(1)". + The %@ format code requires that known_p be true for the event ID. */ +typedef diagnostic_event_id_t *diagnostic_event_id_ptr; + +#endif /* ! GCC_DIAGNOSTIC_EVENT_ID_H */