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872dceaaff
Currently the source cache will only store highlighted text. However, there's no reason it could not also store plain text, when styling is turned off. This patch makes this change. This also simplifies the source cache code somewhat. gdb/ChangeLog 2019-08-06 Tom Tromey <tromey@adacore.com> * source-cache.c (source_cache::get_plain_source_lines): Remove "first_line" and "last_line" parameters. (source_cache::get_source_lines): Cache plain text. * source-cache.h (class source_cache) <get_plain_source_lines>: Update.
74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
/* Cache of styled source file text
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Copyright (C) 2018-2019 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef SOURCE_CACHE_H
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#define SOURCE_CACHE_H
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/* This caches highlighted source text, keyed by the source file's
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full name. A size-limited LRU cache is used.
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Highlighting depends on the GNU Source Highlight library. When not
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available, this cache will fall back on reading plain text from the
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appropriate file. */
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class source_cache
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{
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public:
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source_cache ()
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{
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}
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/* Get the source text for the source file in symtab S. FIRST_LINE
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and LAST_LINE are the first and last lines to return; line
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numbers are 1-based. If the file cannot be read, false is
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returned. Otherwise, LINES_OUT is set to the desired text. The
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returned text may include ANSI terminal escapes. */
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bool get_source_lines (struct symtab *s, int first_line,
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int last_line, std::string *lines_out);
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/* Remove all the items from the source cache. */
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void clear ()
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{
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m_source_map.clear ();
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}
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private:
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/* One element in the cache. */
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struct source_text
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{
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/* The full name of the file. */
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std::string fullname;
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/* The contents of the file. */
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std::string contents;
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};
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/* A helper function for get_source_lines reads a source file.
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Returns false on error. If no error, the contents of the file
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are put into *LINES_OUT, and returns true. */
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bool get_plain_source_lines (struct symtab *s, std::string *lines_out);
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/* The contents of the cache. */
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std::vector<source_text> m_source_map;
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};
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/* The global source cache. */
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extern source_cache g_source_cache;
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#endif /* SOURCE_CACHE_H */
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