mirror of git://gcc.gnu.org/git/gcc.git
86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
/* Support for selftests involving diagnostic_show_locus.
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Copyright (C) 1999-2025 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_DIAGNOSTICS_SELFTEST_SOURCE_PRINTING_H
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#define GCC_DIAGNOSTICS_SELFTEST_SOURCE_PRINTING_H
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#include "selftest.h"
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#include "diagnostics/file-cache.h"
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/* The selftest code should entirely disappear in a production
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configuration, hence we guard all of it with #if CHECKING_P. */
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#if CHECKING_P
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namespace diagnostics {
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namespace selftest {
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/* RAII class for use in selftests involving diagnostic_show_locus.
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Manages creating and cleaning up the following:
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- writing out a temporary .c file containing CONTENT
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- temporarily override the global "line_table" (using CASE_) and
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push a line_map starting at the first line of the temporary file
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- provide a file_cache. */
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struct source_printing_fixture
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{
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source_printing_fixture (const ::selftest::line_table_case &case_,
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const char *content);
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const char *get_filename () const
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{
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return m_tmp_source_file.get_filename ();
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}
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const char *m_content;
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::selftest::temp_source_file m_tmp_source_file;
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::selftest::line_table_test m_ltt;
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file_cache m_fc;
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};
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/* Fixture for one-liner tests exercising multibyte awareness. For
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simplicity we stick to using two multibyte characters in the test, U+1F602
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== "\xf0\x9f\x98\x82", which uses 4 bytes and 2 display columns, and U+03C0
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== "\xcf\x80", which uses 2 bytes and 1 display column.
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This works with the following 1-line source file:
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.0000000001111111111222222 display
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.1234567890123456789012345 columns
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"SS_foo = P_bar.SS_fieldP;\n"
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.0000000111111111222222223 byte
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.1356789012456789134567891 columns
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Here SS represents the two display columns for the U+1F602 emoji and
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P represents the one display column for the U+03C0 pi symbol. */
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struct source_printing_fixture_one_liner_utf8
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: public source_printing_fixture
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{
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source_printing_fixture_one_liner_utf8 (const ::selftest::line_table_case &case_);
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};
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} // namespace diagnostics::selftest
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} // namespace diagnostics
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#endif /* #if CHECKING_P */
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#endif /* GCC_DIAGNOSTICS_SELFTEST_SOURCE_PRINTING_H */
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