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/* Determining the results of applying fix-it hints.
Copyright (C) 2016-2022 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_EDIT_CONTEXT_H
#define GCC_EDIT_CONTEXT_H
#include "typed-splay-tree.h"
class edit_context;
class edited_file;
/* A set of changes to the source code.
The changes are "atomic" - if any changes can't be applied,
none of them can be (tracked by the m_valid flag).
Similarly, attempts to add the changes from a rich_location flagged
as containing invalid changes mean that the whole of the edit_context
is flagged as invalid.
A complication here is that fix-its are expressed relative to coordinates
in the files when they were parsed, before any changes have been made, and
so if there's more that one fix-it to be applied, we have to adjust
later fix-its to allow for the changes made by earlier ones. This
is done by the various "get_effective_column" methods. */
class edit_context
{
public:
edit_context ();
bool valid_p () const { return m_valid; }
void add_fixits (rich_location *richloc);
char *get_content (const char *filename);
int get_effective_column (const char *filename, int line, int column);
char *generate_diff (bool show_filenames);
void print_diff (pretty_printer *pp, bool show_filenames);
private:
bool apply_fixit (const fixit_hint *hint);
edited_file *get_file (const char *filename);
edited_file &get_or_insert_file (const char *filename);
bool m_valid;
typed_splay_tree<const char *, edited_file *> m_files;
};
#endif /* GCC_EDIT_CONTEXT_H. */
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