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#ifndef __netenum_H
#define __netenum_H
/*
* Copyright (c) 2010 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
# include "ivl_target.h"
# include "verinum.h"
# include "StringHeap.h"
# include <vector>
# include <map>
class NetScope;
class netenum_t {
public:
explicit netenum_t(ivl_variable_type_t base_type, bool signed_flag,
long msb, long lsb, size_t name_count);
~netenum_t();
ivl_variable_type_t base_type() const;
unsigned base_width() const;
// The size() is the number of enumeration literals.
size_t size() const;
// Insert the name (and value) at the specific place in the
// enumeration. This must be done exactly once for each
// enumeration value.
bool insert_name(size_t idx, perm_string name, const verinum&val);
typedef std::map<perm_string,verinum>::const_iterator iterator;
iterator find_name(perm_string name) const;
iterator end_name() const;
// These methods roughly match the .first() and .last() methods.
iterator first_name() const;
iterator last_name() const;
perm_string name_at(size_t idx) const;
perm_string bits_at(size_t idx);
private:
ivl_variable_type_t base_type_;
bool signed_flag_;
long msb_, lsb_;
std::map<perm_string,verinum> names_map_;
std::vector<perm_string> names_;
std::vector<perm_string> bits_;
};
inline ivl_variable_type_t netenum_t::base_type() const
{ return base_type_; }
inline unsigned netenum_t::base_width() const
{
if (msb_ >= lsb_)
return msb_ - lsb_ + 1;
else
return lsb_ - msb_ + 1;
}
inline size_t netenum_t::size() const { return names_.size(); }
#endif
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