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/* Pedantic checking of DWARF files.
Copyright (C) 2009 Red Hat, Inc.
This file is part of elfutils.
Written by Petr Machata <pmachata@redhat.com>, 2009.
This file is part of elfutils.
This file 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 of the License, or
(at your option) any later version.
elfutils 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 this program. If not, see <http://www.gnu.org/licenses/>. */
#include <map>
#include <set>
#include <stdexcept>
#include <sstream>
#include <cassert>
#include "../libdw/c++/dwarf"
enum optionality
{
opt_optional = 0, // may or may not be present
opt_required, // bogus if missing
opt_expected, // suspicious if missing
};
template <class T>
std::string
string_of (T x)
{
std::ostringstream o;
o << x;
return o.str();
}
struct expected_set
{
typedef std::map <int, optionality> expectation_map;
private:
expectation_map m_map;
public:
#define DEF_FILLER(WHAT) \
expected_set &WHAT (int attribute) \
{ \
assert (m_map.find (attribute) == m_map.end ()); \
m_map.insert (std::make_pair (attribute, opt_##WHAT)); \
return *this; \
} \
expected_set &WHAT (std::set <int> const &attributes) \
{ \
for (std::set <int>::const_iterator it = attributes.begin (); \
it != attributes.end (); ++it) \
WHAT (*it); \
return *this; \
}
DEF_FILLER (required)
DEF_FILLER (expected)
DEF_FILLER (optional)
#undef DEF_FILLER
expectation_map const &map () const
{
return m_map;
}
};
class expected_map
{
typedef std::map <int, expected_set> expected_map_t;
protected:
expected_map_t m_map;
expected_map () {}
public:
expected_set::expectation_map const &map (int tag) const
{
expected_map_t::const_iterator it = m_map.find (tag);
if (it == m_map.end ())
throw std::runtime_error ("Unknown tag "
+ elfutils::dwarf::tags::identifier (tag));
return it->second.map ();
}
};
struct expected_at_map
: public expected_map
{
expected_at_map ();
};
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