mcs/class/System.Web/System.Web.Compilation/AssemblyBuilder.cs

   1 //
   2 // System.Web.Compilation.AssemblyBuilder
   3 //
   4 // Authors:
   5 //      Chris Toshok (toshok@ximian.com)
   6 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7 //
   8 // (C) 2006 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 #if NET_2_0
  33
  34 using System;
  35 using System.CodeDom;
  36 using System.CodeDom.Compiler;
  37 using System.Collections.Generic;
  38 using System.Collections.Specialized;
  39 using System.IO;
  40 using System.Reflection;
  41 using System.Web.Configuration;
  42 using System.Web.Util;
  43
  44 namespace System.Web.Compilation {
  45
  46         public class AssemblyBuilder {
  47                 static bool KeepFiles = (Environment.GetEnvironmentVariable ("MONO_ASPNET_NODELETE") != null);
  48
  49                 CodeDomProvider provider;
  50                 List <CodeCompileUnit> units;
  51                 List <string> source_files;
  52                 Dictionary <string, string> resource_files;
  53                 TempFileCollection temp_files;
  54                 string virtual_path;
  55                 //TODO: there should be a Compile () method here which is where all the compilation exceptions are thrown from.
  56
  57                 internal AssemblyBuilder (string virtualPath, CodeDomProvider provider)
  58                 {
  59                         this.provider = provider;
  60                         this.virtual_path = virtualPath;
  61                         units = new List <CodeCompileUnit> ();
  62                         units.Add (new CodeCompileUnit ());
  63                         temp_files = new TempFileCollection ();
  64                         CompilationSection section;
  65                         section = (CompilationSection) WebConfigurationManager.GetSection ("system.web/compilation", virtualPath);
  66                         string tempdir = section.TempDirectory;
  67                         if (tempdir == null || tempdir == "")
  68                                 tempdir = AppDomain.CurrentDomain.SetupInformation.DynamicBase;
  69
  70                         temp_files = new TempFileCollection (tempdir, KeepFiles);
  71                 }
  72
  73                 internal TempFileCollection TempFiles {
  74                         get { return temp_files; }
  75                 }
  76
  77                 internal CodeCompileUnit [] GetUnitsAsArray ()
  78                 {
  79                         CodeCompileUnit [] result = new CodeCompileUnit [units.Count];
  80                         units.CopyTo (result, 0);
  81                         return result;
  82                 }
  83
  84                 List <string> SourceFiles {
  85                         get {
  86                                 if (source_files == null)
  87                                         source_files = new List <string> ();
  88                                 return source_files;
  89                         }
  90                 }
  91
  92                 Dictionary <string, string> ResourceFiles {
  93                         get {
  94                                 if (resource_files == null)
  95                                         resource_files = new Dictionary <string, string> ();
  96                                 return resource_files;
  97                         }
  98                 }
  99
 100                 public void AddAssemblyReference (Assembly a)
 101                 {
 102                         if (a == null)
 103                                 throw new ArgumentNullException ("a");
 104
 105                         StringCollection coll = units [units.Count - 1].ReferencedAssemblies;
 106                         string location = a.Location;
 107                         if (coll.IndexOf (location) == -1)
 108                                 coll.Add (location);
 109                 }
 110
 111                 [MonoTODO ("Do something with the buildProvider argument")]
 112                 public void AddCodeCompileUnit (BuildProvider buildProvider, CodeCompileUnit compileUnit)
 113                 {
 114                         if (buildProvider == null)
 115                                 throw new ArgumentNullException ("buildProvider");
 116
 117                         if (compileUnit == null)
 118                                 throw new ArgumentNullException ("compileUnit");
 119
 120                         units.Add (compileUnit);
 121                 }
 122
 123                 [MonoTODO ("Anything to do with the buildProvider argument?")]
 124                 public TextWriter CreateCodeFile (BuildProvider buildProvider)
 125                 {
 126                         if (buildProvider == null)
 127                                 throw new ArgumentNullException ("buildProvider");
 128
 129                         string filename = temp_files.AddExtension ("temp", true);
 130                         SourceFiles.Add (filename);
 131                         return new StreamWriter (File.OpenWrite (filename), WebEncoding.FileEncoding);
 132                 }
 133
 134                 [MonoTODO ("Anything to do with the buildProvider argument?")]
 135                 public Stream CreateEmbeddedResource (BuildProvider buildProvider, string name)
 136                 {
 137                         if (buildProvider == null)
 138                                 throw new ArgumentNullException ("buildProvider");
 139
 140                         if (name == null || name == "")
 141                                 throw new ArgumentNullException ("name");
 142
 143                         string filename = temp_files.AddExtension ("resource", true);
 144                         Stream stream = File.OpenWrite (filename);
 145                         ResourceFiles [name] = filename;
 146                         return stream;
 147                 }
 148
 149                 [MonoTODO]
 150                 public void GenerateTypeFactory (string typeName)
 151                 {
 152                         // Do nothing by now.
 153                 }
 154
 155                 public string GetTempFilePhysicalPath (string extension)
 156                 {
 157                         if (extension == null)
 158                                 throw new ArgumentNullException ("extension");
 159
 160                         return temp_files.AddExtension (extension, true);
 161                 }
 162
 163                 public CodeDomProvider CodeDomProvider {
 164                         get { return provider; }
 165                 }
 166
 167                 internal CompilerResults BuildAssembly (string virtualPath, CompilerParameters options)
 168                 {
 169                         CompilerResults results;
 170                         CodeCompileUnit [] units = GetUnitsAsArray ();
 171                         results = provider.CompileAssemblyFromDom (options, units);
 172                         // FIXME: generate the code and display it
 173                         if (results.NativeCompilerReturnValue != 0)
 174                                 throw new CompilationException (virtualPath, results.Errors, "");
 175
 176                         Assembly assembly = results.CompiledAssembly;
 177                         if (assembly == null) {
 178                                 if (!File.Exists (options.OutputAssembly)) {
 179                                         results.TempFiles.Delete ();
 180                                         throw new CompilationException (virtualPath, results.Errors,
 181                                                 "No assembly returned after compilation!?");
 182                                 }
 183
 184                                 results.CompiledAssembly = Assembly.LoadFrom (options.OutputAssembly);
 185                         }
 186
 187                         results.TempFiles.Delete ();
 188                         return results;
 189                 }
 190         }
 191 }
 192 #endif
 193