src-wsl/transf-min.wsl

   1 C:"
   2 Copyright (C) 2012 Doni Pracner http://perun.dmi.rs/pracner
   3
   4 This program is free software; you can redistribute it
   5 and/or modify it under the terms of the GNU General Public
   6 License as published by the Free Software Foundation; either
   7 version 3 of the License, or (at your option) any later
   8 version.
   9
  10 This program is distributed in the hope that it will be
  11 useful, but WITHOUT ANY WARRANTY; without even the implied
  12 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  13 PURPOSE. See the GNU General Public License for more
  14 details.
  15
  16 You should have received a copy of the GNU General Public
  17 License along with this program. If not, see
  18 <http://www.gnu.org/licenses/>.
  19 ==========================================================";
  20
  21 C:"Automatic transformation tool for simplification of WSL";
  22 C:"code automaticaly translated from assembly using asm2wsl.";
  23 C:"a simple version";
  24 MW_PROC @Process_Prog() ==
  25         @Trans(TR_Constant_Propagation, "");
  26         FOREACH Statement DO
  27                 IF @ST(@I) = T_A_S THEN
  28                         C:"don't need to test for this, works for T_A_S";
  29                         IF @Trans?(TR_Collapse_Action_System) THEN
  30                                 @Trans(TR_Collapse_Action_System, "");
  31                         FI;
  32                 ELSIF @Trans?(TR_Remove_All_Redundant_Vars) THEN
  33                         @Trans(TR_Remove_All_Redundant_Vars, "");
  34                 ELSIF @ST(@I) = T_Skip THEN
  35                         @Delete
  36                 FI
  37         OD;
  38         C:"remove all the comments ";
  39         FOREACH Statement DO
  40         IF @ST(@I) = T_Comment THEN
  41                         @Delete
  42         FI
  43         OD;
  44         C:"Convert DO loops into WHILE loops";
  45         FOREACH Statement DO
  46                 IF @Trans?(TR_Floop_To_While) THEN
  47                         @Trans(TR_Floop_To_While, "");
  48                 FI
  49         OD;
  50         C:"Go back to the start, and remove redundant";
  51         @GOTO(< >);
  52         @Trans(TR_Delete_All_Redundant, "");
  53         SKIP
  54 END;
  55
  56 BEGIN
  57 VAR< prog := < >, inifilename := "transf.ini",
  58         filename:="", file := "", inifile:= ""
  59 >:
  60 IF @File_Exists?(inifilename) THEN
  61         inifile := @Open_Input_File(inifilename);
  62         filename := @Read_Line(inifile);
  63         WHILE NOT @EOF?(filename) DO
  64                 IF @File_Exists?(filename) THEN
  65                         @New_Program(@Parse_File(filename, T_Statements));
  66                         PRINT("Processing: ", filename);
  67                         prog := @Program;
  68                         @Process_Prog();
  69                         Get_New_Name(VAR filename);
  70                         @PP_Item(@Program, 80, filename);
  71                         Prog_Stat(prog);
  72                         PRINT("");
  73                         PRINT("After Conversion");
  74                         Prog_Stat(@Program)
  75                 FI;
  76                 filename := @Read_Line(inifile)
  77         OD;
  78         @Close_Input_Port(inifile);
  79 ELSE
  80     PRINT("ini file (",inifilename,") not found.",
  81     " it should contain a list of filenames to be converted");
  82     PRINT("you can input a filename now:");
  83     filename := @Read_Line(Standard_Input_Port);
  84     IF @File_Exists?(filename) THEN
  85         @New_Program(@Parse_File(filename, T_Statements));
  86         @Process_Prog();
  87         Get_New_Name(VAR filename);
  88         @PP_Item(@Program, 80, filename)
  89     FI;
  90 FI
  91 ENDVAR
  92 WHERE
  93
  94 PROC Prog_Stat(Pro VAR)==
  95   PRINT ("Mc ", @McCabe(Pro));
  96   PRINT ("Statements ", @Stat_Count(Pro));
  97   PRINT ("Control/data Flow ", @CFDF_Metric(Pro));
  98   PRINT ("Size(nodes) ", @Total_Size(Pro));
  99   PRINT ("Struct ", @Struct_Metric(Pro));
 100   SKIP
 101 END
 102
 103 PROC Get_New_Name(VAR str) ==
 104         IF @Ends_With?(str, ".wsl") THEN
 105                 str := SUBSTR(str, 0, SLENGTH(str)-4)
 106         FI;
 107         str := str ++ "_t.wsl"
 108 END
 109
 110 PROC Get_Before_Name(VAR str) ==
 111         IF @Ends_With?(str, ".wsl") THEN
 112                 str := SUBSTR(str, 0, SLENGTH(str)-4)
 113         FI;
 114         str := str ++ "_b.wsl"
 115 END
 116
 117 END