1 //
2 // DefaultAssemblyResolver.cs
3 //
4 // Author:
5 //   Jb Evain (jbevain@gmail.com)
6 //
7 // Copyright (c) 2008 - 2011 Jb Evain
8 //
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
16 //
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
19 //
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 //
28 
29 using System;
30 using System.Collections.Generic;
31 
32 namespace Mono.Cecil {
33 
34 	public class DefaultAssemblyResolver : BaseAssemblyResolver {
35 
36 		readonly IDictionary<string, AssemblyDefinition> cache;
37 
DefaultAssemblyResolver()38 		public DefaultAssemblyResolver ()
39 		{
40 			cache = new Dictionary<string, AssemblyDefinition> (StringComparer.Ordinal);
41 		}
42 
Resolve(AssemblyNameReference name)43 		public override AssemblyDefinition Resolve (AssemblyNameReference name)
44 		{
45 			if (name == null)
46 				throw new ArgumentNullException ("name");
47 
48 			AssemblyDefinition assembly;
49 			if (cache.TryGetValue (name.FullName, out assembly))
50 				return assembly;
51 
52 			assembly = base.Resolve (name);
53 			cache [name.FullName] = assembly;
54 
55 			return assembly;
56 		}
57 
RegisterAssembly(AssemblyDefinition assembly)58 		protected void RegisterAssembly (AssemblyDefinition assembly)
59 		{
60 			if (assembly == null)
61 				throw new ArgumentNullException ("assembly");
62 
63 			var name = assembly.Name.FullName;
64 			if (cache.ContainsKey (name))
65 				return;
66 
67 			cache [name] = assembly;
68 		}
69 	}
70 }
71