mcs/mbas/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.MonoBASIC {
  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 public int ProcessResults(bool quiet)
  62                 {
  63                         if (!quiet)
  64                         {
  65                                 if (Report.ExpectedError != 0)
  66                                         Console.WriteLine("Failed to report expected Error " + Report.ExpectedError);
  67
  68                                 if (Errors == 0)
  69                                 {
  70                                         if (Warnings == 0)
  71                                                 Console.WriteLine("Compilation succeeded");
  72                                         else
  73                                                 Console.WriteLine("Compilation succeeded: {0} warning(s)", Warnings);
  74                                 }
  75                                 else
  76                                         Console.WriteLine("Compilation failed: {0} Error(s), {1} warnings",     Errors, Warnings);
  77                         }
  78                         return (Errors == 0)?0:1;
  79                 }
  80
  81                 static void Check (int code)
  82                 {
  83                         if (code == expected_error)
  84                         {
  85                                 if (Fatal)
  86                                         throw new Exception ();
  87
  88                                 Environment.Exit (0);
  89                         }
  90                 }
  91
  92                 static private void RealError (string msg)
  93                 {
  94                         Errors++;
  95                         Console.WriteLine (msg);
  96
  97                         if (Stacktrace)
  98                                 Console.WriteLine (new StackTrace ().ToString ());
  99                         if (Fatal)
 100                                 throw new Exception (msg);
 101                 }
 102
 103                 static public void Error (int code, Location l, string text)
 104                 {
 105                         string msg = String.Format (
 106                                 "{0}({1},{2}) error BC{3:0000}: {4}", l.Name, l.Row, l.Col, code, text);
 107
 108                         RealError (msg);
 109                         Check (code);
 110                 }
 111
 112                 static public void Warning (int code, Location l, string text)
 113                 {
 114                         if (warning_ignore_table != null){
 115                                 if (warning_ignore_table.Contains (code))
 116                                         return;
 117                         }
 118
 119                         if (WarningsAreErrors)
 120                                 Error (code, l, text);
 121                         else {
 122                                 if (Location.IsNull (l))
 123                                         Console.WriteLine(String.Format("{0} warning BC{1:0000}: {2}",
 124                                                 l.Name, code, text));
 125                                 else
 126                                         Console.WriteLine(String.Format("{0}({1},{2}) warning BC{3:0000}: {4}",
 127                                                 l.Name, l.Row, l.Col, code, text));
 128                                 Warnings++;
 129                                 Check (code);
 130
 131                                 if (Stacktrace)
 132                                         Console.WriteLine (new StackTrace ().ToString ());
 133                         }
 134                 }
 135
 136                 static public void Warning (int code, string text)
 137                 {
 138                         Warning (code, Location.Null, text);
 139                 }
 140
 141                 static public void Warning (int code, int level, string text)
 142                 {
 143                         if (RootContext.WarningLevel >= level)
 144                                 Warning (code, Location.Null, text);
 145                 }
 146
 147                 static public void Warning (int code, int level, Location l, string text)
 148                 {
 149                         if (RootContext.WarningLevel >= level)
 150                                 Warning (code, l, text);
 151                 }
 152
 153                 static public void Error (int code, string text)
 154                 {
 155                         string msg = String.Format ("error BC{0:0000}: {1}", code, text);
 156
 157                         RealError (msg);
 158                         Check (code);
 159                 }
 160
 161                 static public void Message (Message m)
 162                 {
 163                         if (m is ErrorMessage)
 164                                 Error (m.code, m.text);
 165                         else
 166                                 Warning (m.code, m.text);
 167                 }
 168
 169                 static public void SetIgnoreWarning (int code)
 170                 {
 171                         if (warning_ignore_table == null)
 172                                 warning_ignore_table = new Hashtable ();
 173
 174                         warning_ignore_table [code] = true;
 175                 }
 176
 177                 static public int ExpectedError {
 178                         set {
 179                                 expected_error = value;
 180                         }
 181                         get {
 182                                 return expected_error;
 183                         }
 184                 }
 185
 186                 public static int DebugFlags = 0;
 187
 188                 [Conditional ("MCS_DEBUG")]
 189                 static public void Debug (string message, params object[] args)
 190                 {
 191                         Debug (4, message, args);
 192                 }
 193
 194                 [Conditional ("MCS_DEBUG")]
 195                 static public void Debug (int category, string message, params object[] args)
 196                 {
 197                         if ((category & DebugFlags) == 0)
 198                                 return;
 199
 200                         StringBuilder sb = new StringBuilder (message);
 201
 202                         if ((args != null) && (args.Length > 0)) {
 203                                 sb.Append (": ");
 204
 205                                 bool first = true;
 206                                 foreach (object arg in args) {
 207                                         if (first)
 208                                                 first = false;
 209                                         else
 210                                                 sb.Append (",");
 211                                         if (arg == null)
 212                                                 sb.Append ("null");
 213                                         else if (arg is ICollection)
 214                                                 sb.Append (PrintCollection ((ICollection) arg));
 215                                         else
 216                                                 sb.Append (arg);
 217                                 }
 218                         }
 219
 220                         Console.WriteLine (sb.ToString ());
 221                 }
 222
 223                 static public string PrintCollection (ICollection collection)
 224                 {
 225                         StringBuilder sb = new StringBuilder ();
 226
 227                         sb.Append (collection.GetType ());
 228                         sb.Append ("(");
 229
 230                         bool first = true;
 231                         foreach (object o in collection) {
 232                                 if (first)
 233                                         first = false;
 234                                 else
 235                                         sb.Append (",");
 236                                 sb.Append (o);
 237                         }
 238
 239                         sb.Append (")");
 240                         return sb.ToString ();
 241                 }
 242         }
 243
 244         public class Message {
 245                 public int code;
 246                 public string text;
 247
 248                 public Message (int code, string text)
 249                 {
 250                         this.code = code;
 251                         this.text = text;
 252                 }
 253         }
 254
 255         public class WarningMessage : Message {
 256                 public WarningMessage (int code, string text) : base (code, text)
 257                 {
 258                 }
 259         }
 260
 261         public class ErrorMessage : Message {
 262                 public ErrorMessage (int code, string text) : base (code, text)
 263                 {
 264                 }
 265
 266                 //
 267                 // For compatibility reasons with old code.
 268                 //
 269                 public static void report_error (string error)
 270                 {
 271                         Console.Write ("ERROR: ");
 272                         Console.WriteLine (error);
 273                 }
 274         }
 275
 276         public enum TimerType {
 277                 FindMembers     = 0,
 278                 TcFindMembers   = 1,
 279                 MemberLookup    = 2,
 280                 CachedLookup    = 3,
 281                 CacheInit       = 4,
 282                 MiscTimer       = 5,
 283                 CountTimers     = 6
 284         }
 285
 286         public enum CounterType {
 287                 FindMembers     = 0,
 288                 MemberCache     = 1,
 289                 MiscCounter     = 2,
 290                 CountCounters   = 3
 291         }
 292
 293         public class Timer
 294         {
 295                 static DateTime[] timer_start;
 296                 static TimeSpan[] timers;
 297                 static long[] timer_counters;
 298                 static long[] counters;
 299
 300                 static Timer ()
 301                 {
 302                         timer_start = new DateTime [(int) TimerType.CountTimers];
 303                         timers = new TimeSpan [(int) TimerType.CountTimers];
 304                         timer_counters = new long [(int) TimerType.CountTimers];
 305                         counters = new long [(int) CounterType.CountCounters];
 306
 307                         for (int i = 0; i < (int) TimerType.CountTimers; i++) {
 308                                 timer_start [i] = DateTime.Now;
 309                                 timers [i] = TimeSpan.Zero;
 310                         }
 311                 }
 312
 313                 [Conditional("TIMER")]
 314                 static public void IncrementCounter (CounterType which)
 315                 {
 316                         ++counters [(int) which];
 317                 }
 318
 319                 [Conditional("TIMER")]
 320                 static public void StartTimer (TimerType which)
 321                 {
 322                         timer_start [(int) which] = DateTime.Now;
 323                 }
 324
 325                 [Conditional("TIMER")]
 326                 static public void StopTimer (TimerType which)
 327                 {
 328                         timers [(int) which] += DateTime.Now - timer_start [(int) which];
 329                         ++timer_counters [(int) which];
 330                 }
 331
 332                 [Conditional("TIMER")]
 333                 static public void ShowTimers ()
 334                 {
 335                         ShowTimer (TimerType.FindMembers, "- FindMembers timer");
 336                         ShowTimer (TimerType.TcFindMembers, "- TypeContainer.FindMembers timer");
 337                         ShowTimer (TimerType.MemberLookup, "- MemberLookup timer");
 338                         ShowTimer (TimerType.CachedLookup, "- CachedLookup timer");
 339                         ShowTimer (TimerType.CacheInit, "- Cache init");
 340                         ShowTimer (TimerType.MiscTimer, "- Misc timer");
 341
 342                         ShowCounter (CounterType.FindMembers, "- Find members");
 343                         ShowCounter (CounterType.MemberCache, "- Member cache");
 344                         ShowCounter (CounterType.MiscCounter, "- Misc counter");
 345                 }
 346
 347                 static public void ShowCounter (CounterType which, string msg)
 348                 {
 349                         Console.WriteLine ("{0} {1}", counters [(int) which], msg);
 350                 }
 351
 352                 static public void ShowTimer (TimerType which, string msg)
 353                 {
 354                         Console.WriteLine (
 355                                 "[{0:00}:{1:000}] {2} (used {3} times)",
 356                                 (int) timers [(int) which].TotalSeconds,
 357                                 timers [(int) which].Milliseconds, msg,
 358                                 timer_counters [(int) which]);
 359                 }
 360         }
 361
 362         public class InternalErrorException : Exception {
 363                 public InternalErrorException ()
 364                         : base ("Internal error")
 365                 {
 366                 }
 367
 368                 public InternalErrorException (string message)
 369                         : base (message)
 370                 {
 371                 }
 372         }
 373 }