Attrib.h

   1 #ifndef __Attrib_H
   2 #define __Attrib_H
   3 /*
   4  * Copyright (c) 2000 Stephen Williams (steve@icarus.com)
   5  *
   6  *    This source code is free software; you can redistribute it
   7  *    and/or modify it in source code form under the terms of the GNU
   8  *    General Public License as published by the Free Software
   9  *    Foundation; either version 2 of the License, or (at your option)
  10  *    any later version.
  11  *
  12  *    This program is distributed in the hope that it will be useful,
  13  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *    GNU General Public License for more details.
  16  *
  17  *    You should have received a copy of the GNU General Public License
  18  *    along with this program; if not, write to the Free Software
  19  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  20  */
  21 #ifdef HAVE_CVS_IDENT
  22 #ident "$Id: Attrib.h,v 1.5 2004/02/20 18:53:33 steve Exp $"
  23 #endif
  24
  25 # include  "StringHeap.h"
  26 # include  "verinum.h"
  27
  28 /*
  29  * This class keeps a map of key/value pairs. The map can be set from
  30  * an STL map, or by setting individual mappings.
  31  */
  32 class Attrib {
  33
  34     public:
  35       Attrib();
  36       ~Attrib();
  37
  38       const verinum&attribute(perm_string key) const;
  39       void attribute(perm_string key, const verinum&value);
  40       bool has_compat_attributes(const Attrib&that) const;
  41
  42
  43         /* Provide a means of iterating over the entries in the map. */
  44       unsigned       attr_cnt() const;
  45       perm_string    attr_key(unsigned idx) const;
  46       const verinum& attr_value(unsigned idx) const;
  47
  48
  49     private:
  50       struct cell_ {
  51             perm_string  key;
  52             verinum val;
  53       };
  54
  55       unsigned nlist_;
  56       struct cell_*list_;
  57
  58     private: // not implemented
  59       Attrib(const Attrib&);
  60       Attrib& operator= (const Attrib&);
  61 };
  62
  63 /*
  64  * $Log: Attrib.h,v $
  65  * Revision 1.5  2004/02/20 18:53:33  steve
  66  *  Addtrbute keys are perm_strings.
  67  *
  68  * Revision 1.4  2002/08/12 01:34:58  steve
  69  *  conditional ident string using autoconfig.
  70  *
  71  * Revision 1.3  2002/05/26 01:39:02  steve
  72  *  Carry Verilog 2001 attributes with processes,
  73  *  all the way through to the ivl_target API.
  74  *
  75  *  Divide signal reference counts between rval
  76  *  and lval references.
  77  *
  78  * Revision 1.2  2002/05/23 03:08:50  steve
  79  *  Add language support for Verilog-2001 attribute
  80  *  syntax. Hook this support into existing $attribute
  81  *  handling, and add number and void value types.
  82  *
  83  *  Add to the ivl_target API new functions for access
  84  *  of complex attributes attached to gates.
  85  *
  86  * Revision 1.1  2000/12/04 17:37:03  steve
  87  *  Add Attrib class for holding NetObj attributes.
  88  *
  89  */
  90 #endif