pform_types.h

   1 #ifndef __pform_types_H
   2 #define __pform_types_H
   3 /*
   4  * Copyright (c) 2007 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: pform_types.h,v 1.2 2007/06/04 02:19:07 steve Exp $"
  23 #endif
  24
  25 // This for the perm_string type.
  26 # include  "StringHeap.h"
  27 # include  <iostream>
  28 # include  <list>
  29
  30 /*
  31  * parse-form types.
  32  */
  33
  34 struct index_component_t {
  35       enum ctype_t { SEL_NONE, SEL_BIT, SEL_PART, SEL_IDX_UP, SEL_IDX_DO };
  36
  37       index_component_t() : sel(SEL_NONE), msb(0), lsb(0) { };
  38       ~index_component_t() { }
  39
  40       ctype_t sel;
  41       class PExpr*msb;
  42       class PExpr*lsb;
  43 };
  44
  45 struct name_component_t {
  46       explicit name_component_t(perm_string n) : name(n) { }
  47       ~name_component_t() { }
  48
  49       perm_string name;
  50       std::list<index_component_t>index;
  51 };
  52
  53 extern bool operator < (const name_component_t&lef, const name_component_t&rig);
  54
  55 /*
  56  * The pform_name_t is the general form for a heirarchical identifier.
  57  */
  58 typedef std::list<name_component_t> pform_name_t;
  59
  60 inline perm_string peek_head_name(const pform_name_t&that)
  61 {
  62       return that.front().name;
  63 }
  64
  65 inline perm_string peek_tail_name(const pform_name_t&that)
  66 {
  67       return that.back().name;
  68 }
  69
  70 extern std::ostream& operator<< (std::ostream&out, const pform_name_t&);
  71 extern std::ostream& operator<< (std::ostream&out, const name_component_t&that);
  72 extern std::ostream& operator<< (std::ostream&out, const index_component_t&that);
  73
  74 #endif