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/* Support for selftests involving diagnostic_show_locus.
Copyright (C) 1999-2024 Free Software Foundation, Inc.
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_SELFTEST_DIAGNOSTIC_SHOW_LOCUS_H
#define GCC_SELFTEST_DIAGNOSTIC_SHOW_LOCUS_H
#include "selftest.h"
/* The selftest code should entirely disappear in a production
configuration, hence we guard all of it with #if CHECKING_P. */
#if CHECKING_P
namespace selftest {
/* RAII class for use in selftests involving diagnostic_show_locus.
Manages creating and cleaning up the following:
- writing out a temporary .c file containing CONTENT
- temporarily override the global "line_table" (using CASE_) and
push a line_map starting at the first line of the temporary file
- provide a file_cache. */
struct diagnostic_show_locus_fixture
{
diagnostic_show_locus_fixture (const line_table_case &case_,
const char *content);
const char *get_filename () const
{
return m_tmp_source_file.get_filename ();
}
const char *m_content;
temp_source_file m_tmp_source_file;
line_table_test m_ltt;
file_cache m_fc;
};
/* Fixture for one-liner tests exercising multibyte awareness. For
simplicity we stick to using two multibyte characters in the test, U+1F602
== "\xf0\x9f\x98\x82", which uses 4 bytes and 2 display columns, and U+03C0
== "\xcf\x80", which uses 2 bytes and 1 display column.
This works with the following 1-line source file:
.0000000001111111111222222 display
.1234567890123456789012345 columns
"SS_foo = P_bar.SS_fieldP;\n"
.0000000111111111222222223 byte
.1356789012456789134567891 columns
Here SS represents the two display columns for the U+1F602 emoji and
P represents the one display column for the U+03C0 pi symbol. */
struct diagnostic_show_locus_fixture_one_liner_utf8
: public diagnostic_show_locus_fixture
{
diagnostic_show_locus_fixture_one_liner_utf8 (const line_table_case &case_);
};
} // namespace selftest
#endif /* #if CHECKING_P */
#endif /* GCC_SELFTEST_DIAGNOSTIC_SHOW_LOCUS_H */
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