mcs/ilasm/Driver.cs

   1 //
   2 // Mono.ILASM.Driver
   3 //    Main Command line interface for Mono ILasm Compiler
   4 //
   5 // Author(s):
   6 //  Jackson Harper (Jackson@LatitudeGeo.com)
   7 //
   8 // (C) 2003 Jackson Harper, All rights reserved
   9 //
  10
  11 using System;
  12 using System.IO;
  13 using System.Reflection;
  14 using System.Collections;
  15
  16 namespace Mono.ILASM {
  17
  18         public class Driver {
  19
  20                 enum Target {
  21                         Dll,
  22                         Exe
  23                 }
  24
  25                 public static int Main (string[] args)
  26                 {
  27                         DriverMain driver = new DriverMain (args);
  28                         driver.Run ();
  29                         return 0;
  30                 }
  31
  32                 private class DriverMain {
  33
  34                         private ArrayList il_file_list;
  35                         private string output_file;
  36                         private Target target = Target.Exe;
  37                         private bool show_tokens = false;
  38                         private bool show_method_def = false;
  39                         private bool show_method_ref = false;
  40                         private bool show_parser = false;
  41                         private bool scan_only = false;
  42                         private CodeGen codegen;
  43
  44                         public DriverMain (string[] args)
  45                         {
  46                                 il_file_list = new ArrayList ();
  47                                 ParseArgs (args);
  48                         }
  49
  50                         public void Run ()
  51                         {
  52                                 if (il_file_list.Count == 0) {
  53                                         Usage ();
  54                                         return;
  55                                 }
  56                                 if (output_file == null)
  57                                         output_file = CreateOutputFile ();
  58                                 codegen = new CodeGen (output_file, target == Target.Dll, true);
  59                                 foreach (string file_path in il_file_list)
  60                                         ProcessFile (file_path);
  61                                 if (scan_only)
  62                                         return;
  63
  64                                 codegen.Write ();
  65                         }
  66
  67                         private void ProcessFile (string file_path)
  68                         {
  69                                 if (!File.Exists (file_path)) {
  70                                         Console.WriteLine ("File does not exist: {0}",
  71                                                 file_path);
  72                                         Environment.Exit (2);
  73                                 }
  74                                 StreamReader reader = File.OpenText (file_path);
  75                                 ILTokenizer scanner = new ILTokenizer (reader);
  76
  77                                 if (show_tokens)
  78                                         scanner.NewTokenEvent += new NewTokenEvent (ShowToken);
  79                                 //if (show_method_def)
  80                                 //        MethodTable.MethodDefinedEvent += new MethodDefinedEvent (ShowMethodDef);
  81                                 //if (show_method_ref)
  82                                 //       MethodTable.MethodReferencedEvent += new MethodReferencedEvent (ShowMethodRef);
  83
  84                                 if (scan_only) {
  85                                         ILToken tok;
  86                                         while ((tok = scanner.NextToken) != ILToken.EOF) {
  87                                                 Console.WriteLine (tok);
  88                                         }
  89                                         return;
  90                                 }
  91
  92                                 ILParser parser = new ILParser (codegen);
  93                                 if (show_parser)
  94                                         parser.yyparse (new ScannerAdapter (scanner),  new yydebug.yyDebugSimple ());
  95                                 else
  96                                         parser.yyparse (new ScannerAdapter (scanner),  null);
  97                         }
  98
  99                         public void ShowToken (object sender, NewTokenEventArgs args)
 100                         {
 101                                 Console.WriteLine ("token: '{0}'", args.Token);
 102                         }
 103                         /*
 104                         public void ShowMethodDef (object sender, MethodDefinedEventArgs args)
 105                         {
 106                                 Console.WriteLine ("***** Method defined *****");
 107                                 Console.WriteLine ("-- signature:   {0}", args.Signature);
 108                                 Console.WriteLine ("-- name:        {0}", args.Name);
 109                                 Console.WriteLine ("-- return type: {0}", args.ReturnType);
 110                                 Console.WriteLine ("-- is in table: {0}", args.IsInTable);
 111                                 Console.WriteLine ("-- method atts: {0}", args.MethodAttributes);
 112                                 Console.WriteLine ("-- impl atts:   {0}", args.ImplAttributes);
 113                                 Console.WriteLine ("-- call conv:   {0}", args.CallConv);
 114                         }
 115
 116                         public void ShowMethodRef (object sender, MethodReferencedEventArgs args)
 117                         {
 118                                 Console.WriteLine ("***** Method referenced *****");
 119                                 Console.WriteLine ("-- signature:   {0}", args.Signature);
 120                                 Console.WriteLine ("-- name:        {0}", args.Name);
 121                                 Console.WriteLine ("-- return type: {0}", args.ReturnType);
 122                                 Console.WriteLine ("-- is in table: {0}", args.IsInTable);
 123                         }
 124                         */
 125                         private void ParseArgs (string[] args)
 126                         {
 127                                 string command_arg;
 128                                 foreach (string str in args) {
 129                                         if ((str[0] != '-') && (str[0] != '/')) {
 130                                                 il_file_list.Add (str);
 131                                                 continue;
 132                                         }
 133                                         switch (GetCommand (str, out command_arg)) {
 134                                                 case "out":
 135                                                         output_file = command_arg;
 136                                                         break;
 137                                                 case "exe":
 138                                                         target = Target.Exe;
 139                                                         break;
 140                                                 case "dll":
 141                                                         target = Target.Dll;
 142                                                         break;
 143                                                 case "scan_only":
 144                                                         scan_only = true;
 145                                                         break;
 146                                                 case "show_tokens":
 147                                                         show_tokens = true;
 148                                                         break;
 149                                                 case "show_method_def":
 150                                                         show_method_def = true;
 151                                                         break;
 152                                                 case "show_method_ref":
 153                                                         show_method_ref = true;
 154                                                         break;
 155                                                 case "show_parser":
 156                                                         show_parser = true;
 157                                                         break;
 158                                                 case "-about":
 159                                                         if (str[0] != '-')
 160                                                                 break;
 161                                                         About ();
 162                                                         break;
 163                                                 case "-version":
 164                                                         if (str[0] != '-')
 165                                                                 break;
 166                                                         Version ();
 167                                                         break;
 168                                         }
 169                                 }
 170                         }
 171
 172                         private string GetCommand (string str, out string command_arg)
 173                         {
 174                                 int end_index = str.IndexOfAny (new char[] {':', '='}, 1);
 175                                 string command = str.Substring (1,
 176                                         end_index == -1 ? str.Length - 1 : end_index - 1);
 177
 178                                 if (end_index != -1) {
 179                                         command_arg = str.Substring (end_index+1);
 180                                 } else {
 181                                         command_arg = null;
 182                                 }
 183
 184                                 return command.ToLower ();
 185                         }
 186
 187                         /// <summary>
 188                         ///   Get the first file name and makes it into an output file name
 189                         /// </summary>
 190                         private string CreateOutputFile ()
 191                         {
 192                                 string file_name = (string)il_file_list[0];
 193                                 int ext_index = file_name.LastIndexOf ('.');
 194
 195                                 if (ext_index == -1)
 196                                         ext_index = file_name.Length;
 197
 198                                 return String.Format ("{0}.{1}", file_name.Substring (0, ext_index),
 199                                         target.ToString ().ToLower ());
 200                         }
 201
 202                         private void Usage ()
 203                         {
 204                                 Console.WriteLine ("Mono ILasm compiler\n" +
 205                                         "ilasm [options] source-files\n" +
 206                                         "   --about            About the Mono ILasm compiler\n" +
 207                                         "   --version          Print the version number of the Mono ILasm compiler\n" +
 208                                         "   /out:file_name     Specifies output file.\n" +
 209                                         "   /exe               Compile to executable.\n" +
 210                                         "   /dll               Compile to library.\n" +
 211                                         "Options can be of the form -option or /option\n");
 212                         }
 213
 214                         private void About ()
 215                         {
 216                                 Console.WriteLine (
 217                                         "For more information on Mono, visit the project Web site\n" +
 218                                         "   http://www.go-mono.com\n\n");
 219                                 Environment.Exit (0);
 220                         }
 221
 222                         private void Version ()
 223                         {
 224                                 string version = Assembly.GetExecutingAssembly ().GetName ().Version.ToString ();
 225                                 Console.WriteLine ("Mono ILasm compiler version {0}", version);
 226                                 Environment.Exit (0);
 227                         }
 228
 229                 }
 230         }
 231 }
 232