mcs/mcs/report.cs

   1 //
   2 // report.cs: report errors and warnings.
   3 //
   4 // Author: Miguel de Icaza (miguel@ximian.com)
   5 //
   6 // (C) 2001 Ximian, Inc. (http://www.ximian.com)
   7 //
   8
   9 //
  10 // FIXME: currently our class library does not support custom number format strings
  11 //
  12 using System;
  13 using System.Text;
  14 using System.Collections;
  15 using System.Diagnostics;
  16
  17 namespace Mono.CSharp {
  18
  19         /// <summary>
  20         ///   This class is used to report errors and warnings t te user.
  21         /// </summary>
  22         public class Report {
  23                 /// <summary>
  24                 ///   Errors encountered so far
  25                 /// </summary>
  26                 static public int Errors;
  27
  28                 /// <summary>
  29                 ///   Warnings encountered so far
  30                 /// </summary>
  31                 static public int Warnings;
  32
  33                 /// <summary>
  34                 ///   Whether errors should be throw an exception
  35                 /// </summary>
  36                 static public bool Fatal;
  37
  38                 /// <summary>
  39                 ///   Whether warnings should be considered errors
  40                 /// </summary>
  41                 static public bool WarningsAreErrors;
  42
  43                 /// <summary>
  44                 ///   Whether to dump a stack trace on errors.
  45                 /// </summary>
  46                 static public bool Stacktrace;
  47
  48                 //
  49                 // If the 'expected' error code is reported then the
  50                 // compilation succeeds.
  51                 //
  52                 // Used for the test suite to excercise the error codes
  53                 //
  54                 static int expected_error = 0;
  55
  56                 //
  57                 // Keeps track of the warnings that we are ignoring
  58                 //
  59                 static Hashtable warning_ignore_table;
  60
  61                 static void Check (int code)
  62                 {
  63                         if (code == expected_error){
  64                                 if (Fatal)
  65                                         throw new Exception ();
  66
  67                                 Environment.Exit (0);
  68                         }
  69                 }
  70
  71                 static public void RealError (string msg)
  72                 {
  73                         Errors++;
  74                         Console.WriteLine (msg);
  75
  76                         if (Stacktrace)
  77                                 Console.WriteLine (new StackTrace ().ToString ());
  78                         if (Fatal)
  79                                 throw new Exception (msg);
  80                 }
  81
  82                 static public void Error (int code, Location l, string text)
  83                 {
  84                         if (code < 0)
  85                                 code = 8000-code;
  86
  87                         string msg = String.Format (
  88                                 "{0}({1}) error CS{2:0000}: {3}", l.Name, l.Row, code, text);
  89 //                              "{0}({1}) error CS{2}: {3}", l.Name, l.Row, code, text);
  90
  91                         RealError (msg);
  92                         Check (code);
  93                 }
  94
  95                 static public void Warning (int code, Location l, string text)
  96                 {
  97                         if (code < 0)
  98                                 code = 8000-code;
  99
 100                         if (warning_ignore_table != null){
 101                                 if (warning_ignore_table.Contains (code))
 102                                         return;
 103                         }
 104
 105                         if (WarningsAreErrors)
 106                                 Error (code, l, text);
 107                         else {
 108                                 string row;
 109
 110                                 if (Location.IsNull (l))
 111                                         row = "";
 112                                 else
 113                                         row = l.Row.ToString ();
 114
 115                                 Console.WriteLine (String.Format (
 116                                         "{0}({1}) warning CS{2:0000}: {3}",
 117 //                                      "{0}({1}) warning CS{2}: {3}",
 118                                         l.Name,  row, code, text));
 119                                 Warnings++;
 120                                 Check (code);
 121
 122                                 if (Stacktrace)
 123                                         Console.WriteLine (new StackTrace ().ToString ());
 124                         }
 125                 }
 126
 127                 static public void Warning (int code, string text)
 128                 {
 129                         Warning (code, Location.Null, text);
 130                 }
 131
 132                 static public void Warning (int code, int level, string text)
 133                 {
 134                         if (RootContext.WarningLevel >= level)
 135                                 Warning (code, Location.Null, text);
 136                 }
 137
 138                 static public void Warning (int code, int level, Location l, string text)
 139                 {
 140                         if (RootContext.WarningLevel >= level)
 141                                 Warning (code, l, text);
 142                 }
 143
 144                 static public void Error (int code, string text)
 145                 {
 146                         if (code < 0)
 147                                 code = 8000-code;
 148
 149                         string msg = String.Format ("error CS{0:0000}: {1}", code, text);
 150 //                      string msg = String.Format ("error CS{0}: {1}", code, text);
 151
 152                         RealError (msg);
 153                         Check (code);
 154                 }
 155
 156                 static public void Error (int code, Location loc, string format, params object[] args)
 157                 {
 158                         Error (code, loc, String.Format (format, args));
 159                 }
 160
 161                 static public void Error (int code, string format, params object[] args)
 162                 {
 163                         Error (code, String.Format (format, args));
 164                 }
 165
 166                 static public void Warning (int code, Location loc, string format, params object[] args)
 167                 {
 168                         Warning (code, loc, String.Format (format, args));
 169                 }
 170
 171                 static public void Warning (int code, string format, params object[] args)
 172                 {
 173                         Warning (code, String.Format (format, args));
 174                 }
 175
 176                 static public void Message (Message m)
 177                 {
 178                         if (m is ErrorMessage)
 179                                 Error (m.code, m.text);
 180                         else
 181                                 Warning (m.code, m.text);
 182                 }
 183
 184                 static public void SetIgnoreWarning (int code)
 185                 {
 186                         if (warning_ignore_table == null)
 187                                 warning_ignore_table = new Hashtable ();
 188
 189                         warning_ignore_table [code] = true;
 190                 }
 191
 192                 static public int ExpectedError {
 193                         set {
 194                                 expected_error = value;
 195                         }
 196                         get {
 197                                 return expected_error;
 198                         }
 199                 }
 200
 201                 public static int DebugFlags = 0;
 202
 203                 [Conditional ("MCS_DEBUG")]
 204                 static public void Debug (string message, params object[] args)
 205                 {
 206                         Debug (4, message, args);
 207                 }
 208
 209                 [Conditional ("MCS_DEBUG")]
 210                 static public void Debug (int category, string message, params object[] args)
 211                 {
 212                         if ((category & DebugFlags) == 0)
 213                                 return;
 214
 215                         StringBuilder sb = new StringBuilder (message);
 216
 217                         if ((args != null) && (args.Length > 0)) {
 218                                 sb.Append (": ");
 219
 220                                 bool first = true;
 221                                 foreach (object arg in args) {
 222                                         if (first)
 223                                                 first = false;
 224                                         else
 225                                                 sb.Append (", ");
 226                                         if (arg == null)
 227                                                 sb.Append ("null");
 228                                         else if (arg is ICollection)
 229                                                 sb.Append (PrintCollection ((ICollection) arg));
 230                                         else
 231                                                 sb.Append (arg);
 232                                 }
 233                         }
 234
 235                         Console.WriteLine (sb.ToString ());
 236                 }
 237
 238                 static public string PrintCollection (ICollection collection)
 239                 {
 240                         StringBuilder sb = new StringBuilder ();
 241
 242                         sb.Append (collection.GetType ());
 243                         sb.Append ("(");
 244
 245                         bool first = true;
 246                         foreach (object o in collection) {
 247                                 if (first)
 248                                         first = false;
 249                                 else
 250                                         sb.Append (", ");
 251                                 sb.Append (o);
 252                         }
 253
 254                         sb.Append (")");
 255                         return sb.ToString ();
 256                 }
 257         }
 258
 259         public class Message {
 260                 public int code;
 261                 public string text;
 262
 263                 public Message (int code, string text)
 264                 {
 265                         this.code = code;
 266                         this.text = text;
 267                 }
 268         }
 269
 270         public class WarningMessage : Message {
 271                 public WarningMessage (int code, string text) : base (code, text)
 272                 {
 273                 }
 274         }
 275
 276         public class ErrorMessage : Message {
 277                 public ErrorMessage (int code, string text) : base (code, text)
 278                 {
 279                 }
 280
 281                 //
 282                 // For compatibility reasons with old code.
 283                 //
 284                 public static void report_error (string error)
 285                 {
 286                         Console.Write ("ERROR: ");
 287                         Console.WriteLine (error);
 288                 }
 289         }
 290
 291         public enum TimerType {
 292                 FindMembers     = 0,
 293                 TcFindMembers   = 1,
 294                 MemberLookup    = 2,
 295                 CachedLookup    = 3,
 296                 CacheInit       = 4,
 297                 MiscTimer       = 5,
 298                 CountTimers     = 6
 299         }
 300
 301         public enum CounterType {
 302                 FindMembers     = 0,
 303                 MemberCache     = 1,
 304                 MiscCounter     = 2,
 305                 CountCounters   = 3
 306         }
 307
 308         public class Timer
 309         {
 310                 static DateTime[] timer_start;
 311                 static TimeSpan[] timers;
 312                 static long[] timer_counters;
 313                 static long[] counters;
 314
 315                 static Timer ()
 316                 {
 317                         timer_start = new DateTime [(int) TimerType.CountTimers];
 318                         timers = new TimeSpan [(int) TimerType.CountTimers];
 319                         timer_counters = new long [(int) TimerType.CountTimers];
 320                         counters = new long [(int) CounterType.CountCounters];
 321
 322                         for (int i = 0; i < (int) TimerType.CountTimers; i++) {
 323                                 timer_start [i] = DateTime.Now;
 324                                 timers [i] = TimeSpan.Zero;
 325                         }
 326                 }
 327
 328                 [Conditional("TIMER")]
 329                 static public void IncrementCounter (CounterType which)
 330                 {
 331                         ++counters [(int) which];
 332                 }
 333
 334                 [Conditional("TIMER")]
 335                 static public void StartTimer (TimerType which)
 336                 {
 337                         timer_start [(int) which] = DateTime.Now;
 338                 }
 339
 340                 [Conditional("TIMER")]
 341                 static public void StopTimer (TimerType which)
 342                 {
 343                         timers [(int) which] += DateTime.Now - timer_start [(int) which];
 344                         ++timer_counters [(int) which];
 345                 }
 346
 347                 [Conditional("TIMER")]
 348                 static public void ShowTimers ()
 349                 {
 350                         ShowTimer (TimerType.FindMembers, "- FindMembers timer");
 351                         ShowTimer (TimerType.TcFindMembers, "- TypeContainer.FindMembers timer");
 352                         ShowTimer (TimerType.MemberLookup, "- MemberLookup timer");
 353                         ShowTimer (TimerType.CachedLookup, "- CachedLookup timer");
 354                         ShowTimer (TimerType.CacheInit, "- Cache init");
 355                         ShowTimer (TimerType.MiscTimer, "- Misc timer");
 356
 357                         ShowCounter (CounterType.FindMembers, "- Find members");
 358                         ShowCounter (CounterType.MemberCache, "- Member cache");
 359                         ShowCounter (CounterType.MiscCounter, "- Misc counter");
 360                 }
 361
 362                 static public void ShowCounter (CounterType which, string msg)
 363                 {
 364                         Console.WriteLine ("{0} {1}", counters [(int) which], msg);
 365                 }
 366
 367                 static public void ShowTimer (TimerType which, string msg)
 368                 {
 369                         Console.WriteLine (
 370                                 "[{0:00}:{1:000}] {2} (used {3} times)",
 371                                 (int) timers [(int) which].TotalSeconds,
 372                                 timers [(int) which].Milliseconds, msg,
 373                                 timer_counters [(int) which]);
 374                 }
 375         }
 376
 377         public class InternalErrorException : Exception {
 378                 public InternalErrorException ()
 379                         : base ("Internal error")
 380                 {
 381                 }
 382
 383                 public InternalErrorException (string message)
 384                         : base (message)
 385                 {
 386                 }
 387         }
 388 }