mcs/class/System/Microsoft.CSharp/CSharpCodeGenerator.cs

   1 //
   2 // CSharpCodeGenerator:
   3 //
   4 // Authors:
   5 //      Sean Kasun (seank@users.sf.net)
   6 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7 //
   8 // Copyright (c) Novell, Inc. (http://www.novell.com)
   9 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33 using System.CodeDom;
  34 using System.CodeDom.Compiler;
  35 using System.ComponentModel;
  36 using System.IO;
  37 using System.Text;
  38 using System.Reflection;
  39 using System.Diagnostics;
  40 using System.Text.RegularExpressions;
  41 using System.Threading;
  42 using System.Collections.Generic;
  43 using System.Globalization;
  44
  45 namespace Microsoft.CSharp
  46 {
  47         partial class CSharpCodeGenerator
  48         {
  49                 private CompilerResults FromFileBatch (CompilerParameters options, string[] fileNames)
  50                 {
  51                         if (options == null)
  52                                 throw new ArgumentNullException (nameof(options));
  53
  54                         if (fileNames == null)
  55                                 throw new ArgumentNullException (nameof(fileNames));
  56
  57                         CompilerResults results=new CompilerResults(options.TempFiles);
  58                         Process mcs=new Process();
  59
  60                         // FIXME: these lines had better be platform independent.
  61                         if (Path.DirectorySeparatorChar == '\\') {
  62                                 mcs.StartInfo.FileName = MonoToolsLocator.Mono;
  63                                 mcs.StartInfo.Arguments = "\"" + MonoToolsLocator.McsCSharpCompiler + "\" ";
  64                         } else {
  65                                 mcs.StartInfo.FileName = MonoToolsLocator.McsCSharpCompiler;
  66                         }
  67
  68                         mcs.StartInfo.Arguments += BuildArgs (options, fileNames, _provOptions);
  69
  70                         var mcsOutMutex = new Mutex ();
  71 /*
  72                         string monoPath = Environment.GetEnvironmentVariable ("MONO_PATH");
  73                         if (monoPath != null)
  74                                 monoPath = String.Empty;
  75
  76                         string privateBinPath = AppDomain.CurrentDomain.SetupInformation.PrivateBinPath;
  77                         if (privateBinPath != null && privateBinPath.Length > 0)
  78                                 monoPath = String.Format ("{0}:{1}", privateBinPath, monoPath);
  79
  80                         if (monoPath.Length > 0) {
  81                                 StringDictionary dict = mcs.StartInfo.EnvironmentVariables;
  82                                 if (dict.ContainsKey ("MONO_PATH"))
  83                                         dict ["MONO_PATH"] = monoPath;
  84                                 else
  85                                         dict.Add ("MONO_PATH", monoPath);
  86                         }
  87 */
  88                         /*
  89                          * reset MONO_GC_PARAMS - we are invoking compiler possibly with another GC that
  90                          * may not handle some of the options causing compilation failure
  91                          */
  92                         mcs.StartInfo.EnvironmentVariables ["MONO_GC_PARAMS"] = String.Empty;
  93
  94                         mcs.StartInfo.CreateNoWindow=true;
  95                         mcs.StartInfo.UseShellExecute=false;
  96                         mcs.StartInfo.RedirectStandardOutput=true;
  97                         mcs.StartInfo.RedirectStandardError=true;
  98                         mcs.ErrorDataReceived += new DataReceivedEventHandler ((sender, args) => {
  99                                 if (args.Data != null) {
 100                                         mcsOutMutex.WaitOne ();
 101                                         results.Output.Add (args.Data);
 102                                         mcsOutMutex.ReleaseMutex ();
 103                                 }
 104                         });
 105
 106                         // Use same text decoder as mcs and not user set values in Console
 107                         mcs.StartInfo.StandardOutputEncoding =
 108                         mcs.StartInfo.StandardErrorEncoding = Encoding.UTF8;
 109
 110                         try {
 111                                 mcs.Start();
 112                         } catch (Exception e) {
 113                                 Win32Exception exc = e as Win32Exception;
 114                                 if (exc != null) {
 115                                         throw new SystemException (String.Format ("Error running {0}: {1}", mcs.StartInfo.FileName,
 116                                                                         Win32Exception.GetErrorMessage (exc.NativeErrorCode)));
 117                                 }
 118                                 throw;
 119                         }
 120
 121                         try {
 122                                 mcs.BeginOutputReadLine ();
 123                                 mcs.BeginErrorReadLine ();
 124                                 mcs.WaitForExit();
 125
 126                                 results.NativeCompilerReturnValue = mcs.ExitCode;
 127                         } finally {
 128                                 mcs.CancelErrorRead ();
 129                                 mcs.CancelOutputRead ();
 130                                 mcs.Close();
 131                         }
 132
 133                         bool loadIt=true;
 134                         foreach (string error_line in results.Output) {
 135                                 CompilerError error = CreateErrorFromString (error_line);
 136                                 if (error != null) {
 137                                         results.Errors.Add (error);
 138                                         if (!error.IsWarning)
 139                                                 loadIt = false;
 140                                 }
 141                         }
 142
 143                         if (results.Output.Count > 0) {
 144                                 results.Output.Insert (0, mcs.StartInfo.FileName + " " + mcs.StartInfo.Arguments + Environment.NewLine);
 145                         }
 146
 147                         if (loadIt) {
 148                                 if (!File.Exists (options.OutputAssembly)) {
 149                                         StringBuilder sb = new StringBuilder ();
 150                                         foreach (string s in results.Output)
 151                                                 sb.Append (s + Environment.NewLine);
 152
 153                                         throw new Exception ("Compiler failed to produce the assembly. Output: '" + sb.ToString () + "'");
 154                                 }
 155
 156                                 if (options.GenerateInMemory) {
 157                                         using (FileStream fs = File.OpenRead(options.OutputAssembly)) {
 158                                                 byte[] buffer = new byte[fs.Length];
 159                                                 fs.Read(buffer, 0, buffer.Length);
 160                                                 results.CompiledAssembly = Assembly.Load(buffer, null);
 161                                                 fs.Close();
 162                                         }
 163                                 } else {
 164                                         // Avoid setting CompiledAssembly right now since the output might be a netmodule
 165                                         results.PathToAssembly = options.OutputAssembly;
 166                                 }
 167                         } else {
 168                                 results.CompiledAssembly = null;
 169                         }
 170
 171                         return results;
 172                 }
 173
 174                 private static string BuildArgs (CompilerParameters options, string[] fileNames, IDictionary<string, string> providerOptions)
 175                 {
 176                         StringBuilder args=new StringBuilder();
 177                         if (options.GenerateExecutable)
 178                                 args.Append("/target:exe ");
 179                         else
 180                                 args.Append("/target:library ");
 181
 182                         string privateBinPath = AppDomain.CurrentDomain.SetupInformation.PrivateBinPath;
 183                         if (privateBinPath != null && privateBinPath.Length > 0)
 184                                 args.AppendFormat ("/lib:\"{0}\" ", privateBinPath);
 185
 186                         if (options.Win32Resource != null)
 187                                 args.AppendFormat("/win32res:\"{0}\" ",
 188                                         options.Win32Resource);
 189
 190                         if (options.IncludeDebugInformation)
 191                                 args.Append("/debug+ /optimize- ");
 192                         else
 193                                 args.Append("/debug- /optimize+ ");
 194
 195                         if (options.TreatWarningsAsErrors)
 196                                 args.Append("/warnaserror ");
 197
 198                         if (options.WarningLevel >= 0)
 199                                 args.AppendFormat ("/warn:{0} ", options.WarningLevel);
 200
 201                         if (options.OutputAssembly == null || options.OutputAssembly.Length == 0) {
 202                                 string extension = (options.GenerateExecutable ? "exe" : "dll");
 203                                 options.OutputAssembly = GetTempFileNameWithExtension (options.TempFiles, extension,
 204                                         !options.GenerateInMemory);
 205                         }
 206                         args.AppendFormat("/out:\"{0}\" ",options.OutputAssembly);
 207
 208                         foreach (string import in options.ReferencedAssemblies) {
 209                                 if (import == null || import.Length == 0)
 210                                         continue;
 211
 212                                 args.AppendFormat("/r:\"{0}\" ",import);
 213                         }
 214
 215                         if (options.CompilerOptions != null) {
 216                                 args.Append (options.CompilerOptions);
 217                                 args.Append (" ");
 218                         }
 219
 220                         foreach (string embeddedResource in options.EmbeddedResources) {
 221                                 args.AppendFormat("/resource:\"{0}\" ", embeddedResource);
 222                         }
 223
 224                         foreach (string linkedResource in options.LinkedResources) {
 225                                 args.AppendFormat("/linkresource:\"{0}\" ", linkedResource);
 226                         }
 227
 228                         if (providerOptions != null && providerOptions.Count > 0) {
 229                                 string langver;
 230
 231                                 if (!providerOptions.TryGetValue ("CompilerVersion", out langver))
 232                                         langver = "3.5";
 233
 234                                 if (langver.Length >= 1 && langver [0] == 'v')
 235                                         langver = langver.Substring (1);
 236
 237                                 switch (langver) {
 238                                         case "2.0":
 239                                                 args.Append ("/langversion:ISO-2 ");
 240                                                 break;
 241
 242                                         case "3.5":
 243                                                 // current default, omit the switch
 244                                                 break;
 245                                 }
 246                         }
 247
 248                         args.Append ("/noconfig ");
 249
 250                         args.Append (" -- ");
 251                         foreach (string source in fileNames)
 252                                 args.AppendFormat("\"{0}\" ",source);
 253                         return args.ToString();
 254                 }
 255
 256                 // Keep in sync with mcs/class/Microsoft.Build.Utilities/Microsoft.Build.Utilities/ToolTask.cs
 257                 const string ErrorRegexPattern = @"
 258                         ^
 259                         (\s*(?<file>[^\(]+)                         # filename (optional)
 260                          (\((?<line>\d*)(,(?<column>\d*[\+]*))?\))? # line+column (optional)
 261                          :\s+)?
 262                         (?<level>\w+)                               # error|warning
 263                         \s+
 264                         (?<number>[^:]*\d)                          # CS1234
 265                         :
 266                         \s*
 267                         (?<message>.*)$";
 268
 269                 static readonly Regex RelatedSymbolsRegex = new Regex(
 270                         @"
 271             \(Location\ of\ the\ symbol\ related\ to\ previous\ (warning|error)\)
 272                         ",
 273                         RegexOptions.Compiled | RegexOptions.ExplicitCapture | RegexOptions.IgnorePatternWhitespace);
 274
 275                 private static CompilerError CreateErrorFromString(string error_string)
 276                 {
 277                         if (error_string.StartsWith ("BETA"))
 278                                 return null;
 279
 280                         if (error_string == null || error_string == "")
 281                                 return null;
 282
 283                         CompilerError error=new CompilerError();
 284                         Regex reg = new Regex (ErrorRegexPattern, RegexOptions.Compiled | RegexOptions.ExplicitCapture | RegexOptions.IgnorePatternWhitespace);
 285                         Match match=reg.Match(error_string);
 286                         if (!match.Success) {
 287                                 match = RelatedSymbolsRegex.Match (error_string);
 288                                 if (!match.Success) {
 289                                         // We had some sort of runtime crash
 290                                         error.ErrorText = error_string;
 291                                         error.IsWarning = false;
 292                                         error.ErrorNumber = "";
 293                                         return error;
 294                                 } else {
 295                                         // This line is a continuation of previous warning of error
 296                                         return null;
 297                                 }
 298                         }
 299                         if (String.Empty != match.Result("${file}"))
 300                                 error.FileName=match.Result("${file}");
 301                         if (String.Empty != match.Result("${line}"))
 302                                 error.Line=Int32.Parse(match.Result("${line}"));
 303                         if (String.Empty != match.Result("${column}"))
 304                                 error.Column=Int32.Parse(match.Result("${column}").Trim('+'));
 305
 306                         string level = match.Result ("${level}");
 307                         if (level == "warning")
 308                                 error.IsWarning = true;
 309                         else if (level != "error")
 310                                 return null; // error CS8028 will confuse the regex.
 311
 312                         error.ErrorNumber=match.Result("${number}");
 313                         error.ErrorText=match.Result("${message}");
 314                         return error;
 315                 }
 316
 317                 private static string GetTempFileNameWithExtension (TempFileCollection temp_files, string extension, bool keepFile)
 318                 {
 319                         return temp_files.AddExtension (extension, keepFile);
 320                 }
 321         }
 322 }