mcs/class/IKVM.Reflection/ManifestResourceInfo.cs

   1 /*
   2   Copyright (C) 2009-2012 Jeroen Frijters
   3
   4   This software is provided 'as-is', without any express or implied
   5   warranty.  In no event will the authors be held liable for any damages
   6   arising from the use of this software.
   7
   8   Permission is granted to anyone to use this software for any purpose,
   9   including commercial applications, and to alter it and redistribute it
  10   freely, subject to the following restrictions:
  11
  12   1. The origin of this software must not be misrepresented; you must not
  13      claim that you wrote the original software. If you use this software
  14      in a product, an acknowledgment in the product documentation would be
  15      appreciated but is not required.
  16   2. Altered source versions must be plainly marked as such, and must not be
  17      misrepresented as being the original software.
  18   3. This notice may not be removed or altered from any source distribution.
  19
  20   Jeroen Frijters
  21   jeroen@frijters.net
  22
  23 */
  24 using System;
  25 using IKVM.Reflection.Reader;
  26 using IKVM.Reflection.Metadata;
  27
  28 namespace IKVM.Reflection
  29 {
  30         public sealed class ManifestResourceInfo
  31         {
  32                 private readonly ModuleReader module;
  33                 private readonly int index;
  34
  35                 internal ManifestResourceInfo(ModuleReader module, int index)
  36                 {
  37                         this.module = module;
  38                         this.index = index;
  39                 }
  40
  41                 public ResourceAttributes __ResourceAttributes
  42                 {
  43                         get { return (ResourceAttributes)module.ManifestResource.records[index].Flags; }
  44                 }
  45
  46                 public int __Offset
  47                 {
  48                         get { return module.ManifestResource.records[index].Offset; }
  49                 }
  50
  51                 public ResourceLocation ResourceLocation
  52                 {
  53                         get
  54                         {
  55                                 int implementation = module.ManifestResource.records[index].Implementation;
  56                                 if ((implementation >> 24) == AssemblyRefTable.Index)
  57                                 {
  58                                         Assembly asm = ReferencedAssembly;
  59                                         if (asm == null || asm.__IsMissing)
  60                                         {
  61                                                 return ResourceLocation.ContainedInAnotherAssembly;
  62                                         }
  63                                         return asm.GetManifestResourceInfo(module.GetString(module.ManifestResource.records[index].Name)).ResourceLocation | ResourceLocation.ContainedInAnotherAssembly;
  64                                 }
  65                                 else if ((implementation >> 24) == FileTable.Index)
  66                                 {
  67                                         if ((implementation & 0xFFFFFF) == 0)
  68                                         {
  69                                                 return ResourceLocation.ContainedInManifestFile | ResourceLocation.Embedded;
  70                                         }
  71                                         return 0;
  72                                 }
  73                                 else
  74                                 {
  75                                         throw new BadImageFormatException();
  76                                 }
  77                         }
  78                 }
  79
  80                 public Assembly ReferencedAssembly
  81                 {
  82                         get
  83                         {
  84                                 int implementation = module.ManifestResource.records[index].Implementation;
  85                                 if ((implementation >> 24) == AssemblyRefTable.Index)
  86                                 {
  87                                         return module.ResolveAssemblyRef((implementation & 0xFFFFFF) - 1);
  88                                 }
  89                                 return null;
  90                         }
  91                 }
  92
  93                 public string FileName
  94                 {
  95                         get
  96                         {
  97                                 int implementation = module.ManifestResource.records[index].Implementation;
  98                                 if ((implementation >> 24) == FileTable.Index)
  99                                 {
 100                                         if ((implementation & 0xFFFFFF) == 0)
 101                                         {
 102                                                 return null;
 103                                         }
 104                                         else
 105                                         {
 106                                                 return module.GetString(module.File.records[(implementation & 0xFFFFFF) - 1].Name);
 107                                         }
 108                                 }
 109                                 return null;
 110                         }
 111                 }
 112         }
 113 }