src-wsl/transf-exp.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:"experimental version";
  24
  25 C:"set the following so that Action Systems are not automaticaly treated as regular";
  26 Assume_A_S_Regular := 0;
  27
  28 MW_PROC @Process_Prog() ==
  29         FOREACH Statement DO
  30                 IF @Trans?(TR_Push_Pop) THEN
  31                         @Trans(TR_Push_Pop, "");
  32                 FI
  33         OD;
  34         @Trans(TR_Constant_Propagation, "");
  35         FOREACH Statement DO
  36                 IF @ST(@I) = T_A_S THEN
  37                         C:"don't need to test for this, works for T_A_S";
  38                         @Trans(TR_Simplify_Action_System, "");
  39                         IF @Trans?(TR_Collapse_Action_System) THEN
  40                                 @Trans(TR_Collapse_Action_System, "");
  41                         FI;
  42                 ELSIF @Trans?(TR_Remove_All_Redundant_Vars) THEN
  43                         @Trans(TR_Remove_All_Redundant_Vars, "");
  44                 ELSIF @ST(@I) = T_Skip THEN
  45                         @Delete
  46                 FI
  47         OD;
  48         FOREACH Statement DO
  49                 IF @Trans?(TR_Flag_Removal) THEN
  50                         @Trans(TR_Flag_Removal, "");
  51                 FI
  52         OD;
  53         C:"remove all the comments ";
  54         FOREACH Statement DO
  55         IF @ST(@I) = T_Comment THEN
  56                         @Delete
  57         FI
  58         OD;
  59         FOREACH Statement DO
  60               IF @Trans?(TR_Simplify_Item) THEN
  61                 @Trans(TR_Simplify_Item,"")
  62               FI
  63         OD;
  64
  65         C:"Convert DO loops into WHILE loops";
  66         FOREACH Statement DO
  67                 IF @Trans?(TR_Floop_To_While) THEN
  68                         @Trans(TR_Floop_To_While, "");
  69                 FI
  70         OD;
  71         C:"Go back to the start, and remove redundant";
  72         @GOTO(< >);
  73         @Trans(TR_Delete_All_Redundant, "");
  74         SKIP
  75 END;
  76
  77 BEGIN
  78 VAR< prog := < >, inifilename := "transf.ini",
  79         filename:="", file := "", inifile:= ""
  80 >:
  81 IF @File_Exists?(inifilename) THEN
  82         inifile := @Open_Input_File(inifilename);
  83         filename := @Read_Line(inifile);
  84         WHILE NOT @EOF?(filename) DO
  85                 IF @File_Exists?(filename) THEN
  86                         PRINT("");
  87                         @New_Program(@Parse_File(filename, T_Statements));
  88                         PRINT("Processing: ", filename);
  89                         prog := @Program;
  90                         @Process_Prog();
  91                         Get_New_Name(VAR filename);
  92                         @PP_Item(@Program, 80, filename);
  93                         PRINT("<Metrics>");
  94                         PRINT(filename);
  95                         Prog_Stat_Comp(prog, @Program);
  96                         PRINT("</Metrics>")
  97                 FI;
  98                 filename := @Read_Line(inifile)
  99         OD;
 100         @Close_Input_Port(inifile);
 101 ELSE
 102     PRINT("ini file (",inifilename,") not found.",
 103     " it should contain a list of filenames to be converted");
 104     PRINT("you can input a filename now:");
 105     filename := @Read_Line(Standard_Input_Port);
 106     IF @File_Exists?(filename) THEN
 107         @New_Program(@Parse_File(filename, T_Statements));
 108         @Process_Prog();
 109         Get_New_Name(VAR filename);
 110         @PP_Item(@Program, 80, filename)
 111     FI;
 112 FI
 113 ENDVAR
 114 WHERE
 115
 116 PROC Prog_Stat(Pro VAR)==
 117   PRINT ("Mc ", @McCabe(Pro));
 118   PRINT ("Statements ", @Stat_Count(Pro));
 119   PRINT ("Control/data Flow ", @CFDF_Metric(Pro));
 120   PRINT ("Size(nodes) ", @Total_Size(Pro));
 121   PRINT ("Struct ", @Struct_Metric(Pro));
 122   SKIP
 123 END
 124
 125 PROC Prog_Stat_Comp(Pro, After VAR)==
 126   VAR < ma := 0, mb :=1 > :
 127   ma := @McCabe(Pro);
 128   mb := @McCabe(After);
 129   PRINT ("McCabe ", ma, "  ", mb, "  ",(mb-ma));
 130   ma := @Stat_Count(Pro);
 131   mb := @Stat_Count(After);
 132   PRINT ("Statem ", ma, "  ",mb, "  ",(mb-ma));
 133   ma := @CFDF_Metric(Pro);
 134   mb := @CFDF_Metric(After);
 135   PRINT ("CF/DF  ", ma,"  ", mb,"  ", (mb-ma));
 136   ma := @Total_Size(Pro);
 137   mb := @Total_Size(After);
 138   PRINT ("Size   ", ma,"  ", mb, "  ",(mb-ma));
 139   ma := @Struct_Metric(Pro);
 140   mb := @Struct_Metric(After);
 141   PRINT ("Struct ", ma, "  ",mb, "  ",(mb-ma));
 142   SKIP
 143   ENDVAR
 144 END
 145
 146 PROC Get_New_Name(VAR str) ==
 147         IF @Ends_With?(str, ".wsl") THEN
 148                 str := SUBSTR(str, 0, SLENGTH(str)-4)
 149         FI;
 150         str := str ++ "_t.wsl"
 151 END
 152
 153 PROC Get_Before_Name(VAR str) ==
 154         IF @Ends_With?(str, ".wsl") THEN
 155                 str := SUBSTR(str, 0, SLENGTH(str)-4)
 156         FI;
 157         str := str ++ "_b.wsl"
 158 END
 159
 160 END