interpreter/preprocessor/faust-0.9.47mr3/compiler/signals/binop.hh

   1 /************************************************************************
   2  ************************************************************************
   3     FAUST compiler
   4         Copyright (C) 2003-2004 GRAME, Centre National de Creation Musicale
   5     ---------------------------------------------------------------------
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  ************************************************************************
  20  ************************************************************************/
  21
  22
  23
  24 #ifndef _BINOP_
  25 #define _BINOP_
  26
  27 #include "node.hh"
  28
  29 typedef const Node      (*comp) (const Node& a, const Node& b);
  30 typedef bool            (*pred) (const Node& a);
  31
  32 struct BinOp
  33 {
  34         const char*     fName;
  35     const char* fNameVec;
  36         const char*     fNameScal;
  37         comp            fCompute;
  38         pred            fLeftNeutral;
  39         pred            fRightNeutral;
  40         int                     fPriority;
  41         //
  42         BinOp (const char* name, const char* namevec, const char* namescal, comp f, pred ln, pred rn, int priority)
  43                         : fName(name), fNameVec(namevec), fNameScal(namescal), fCompute(f), fLeftNeutral(ln), fRightNeutral(rn), fPriority(priority) {  }
  44         //
  45         Node compute(const Node& a, const Node& b) { return fCompute(a,b);      }
  46         //
  47         bool isRightNeutral(const Node& a)      { return fRightNeutral(a);      }
  48         bool isLeftNeutral(const Node& a)       { return fLeftNeutral(a);       }
  49 };
  50
  51 extern BinOp* gBinOpTable[];
  52 extern BinOp* gBinOpLateqTable[];
  53
  54
  55 enum {
  56         kAdd, kSub, kMul, kDiv, kRem,
  57         kLsh, kRsh,
  58         kGT, kLT, kGE, kLE, kEQ, kNE,
  59         kAND, kOR, kXOR
  60 };
  61
  62 #endif