libabigail/tools/bidiff.cc
Dodji Seketeli 1cdc283b1d Add diff support for typedef_decl and type_decl
* include/abg-ir.h (operator<<(std::ostream&,
	decl_base::visibility)): Declare new streaming operator.
	* src/abg-ir.cc (operator<<(std::ostream&,
	decl_base::visibility)): Define it.
	(type_decl::{operator==, get_pretty_representation}): Likewise,
	define these new overloads.
	(decl_base::{operator==, get_pretty_representation}): New overloads.
	* include/abg-comparison.h (type_decl_diff type_decl_diff_sptr,
	typedef_diff, typedef_diff_sptr): Declare new classes and
	typedefs.
	* src/abg-comparison.cc (type_decl_diff::{type_decl_diff,
	first_type_decl, second_type_decl, length, report}): New methods
	definitions.
	(compute_diff): New function definition that takes pointers of
	type_decl.
	(typedef_diff::{typedef_diff, first_typedef_decl,
	second_typedef_decl, underlying_type_diff, length, report}): New
	methods.
	(compute_diff): New function definition that takes pointers of
	typedef_decl.
	(try_to_diff_types): New template function, factorized out of ...
	(compute_diff_for_types): ... this.  Add support diffing type_decl
	and typedef_decl.
	(pointer_diff::report): Fix indentation of emitted report.
	* tools/bidiff.cc (parse_command_line): Fix style.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2013-11-19 11:28:00 +01:00

133 lines
3.1 KiB
C++

// -*- Mode: C++ -*-
//
// Copyright (C) 2013 Red Hat, Inc.
//
// This file is part of the GNU Application Binary Interface Generic
// Analysis and Instrumentation Library (libabigail). This library is
// free software; you can redistribute it and/or modify it under the
// terms of the GNU Lesser General Public License as published by the
// Free Software Foundation; either version 3, or (at your option) any
// later version.
// This library 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 Lesser Public License for more details.
// You should have received a copy of the GNU Lesser General Public
// License along with this program; see the file COPYING-LGPLV3. If
// not, see <http://www.gnu.org/licenses/>.
//
// Author: Dodji Seketeli
/// @file
#include <cstring>
#include <string>
#include <iostream>
#include "abg-comparison.h"
#include "abg-tools-utils.h"
using std::string;
using std::ostream;
using std::cout;
using std::cerr;
using abigail::translation_unit;
using abigail::translation_unit_sptr;
using abigail::comparison::translation_unit_diff_sptr;
using abigail::comparison::compute_diff;
using abigail::tools::check_file;
struct options
{
string file1;
string file2;
};//end struct options;
void
display_usage(const string prog_name, ostream& out)
{
out << "usage: " << prog_name << "[options] [<bi-file1> <bi-file2>]\n"
<< " where options can be:\n"
<< " --help display this message\n";
}
/// Parse the command line and set the options accordingly.
///
/// @param argc the number of words on the command line
///
/// @param argv the command line, which is an array of words.
///
/// @param opts the options data structure. This is set by the
/// function iff it returns true.
///
/// @return true if the command line could be parsed and opts filed,
/// false otherwise.
bool
parse_command_line(int argc, char* argv[], options& opts)
{
if (argc < 2)
return false;
for (int i = 1; i < argc; ++i)
{
if (argv[i][0] != '-')
{
if (opts.file1.empty())
opts.file1 = argv[i];
else if (opts.file2.empty())
opts.file2 = argv[i];
else
return false;
}
else if (!strcmp(argv[i], "--help"))
return false;
else
return false;
}
return true;
}
int
main(int argc, char* argv[])
{
options opts;
if (!parse_command_line(argc, argv, opts))
{
display_usage(argv[0], cerr);
return true;
}
if (!opts.file1.empty() && !opts.file2.empty())
{
if (!check_file(opts.file1, cerr))
return true;
if (!check_file(opts.file2, cerr))
return true;
translation_unit_sptr t1(new translation_unit(opts.file1));
translation_unit_sptr t2(new translation_unit(opts.file2));
if (!t1->read())
{
cerr << "failed to read input file " << t1->get_path() << "\n";
return true;
}
if (!t2->read())
{
cerr << "failed to read input file" << t2->get_path() << "\n";
return true;
}
translation_unit_diff_sptr changes = compute_diff(t1, t2);
changes->report(cout);
return false;
}
return true;
}