1 // ***********************************************************************
2 // Copyright (c) 2008 Charlie Poole
4 // Permission is hereby granted, free of charge, to any person obtaining
5 // a copy of this software and associated documentation files (the
6 // "Software"), to deal in the Software without restriction, including
7 // without limitation the rights to use, copy, modify, merge, publish,
8 // distribute, sublicense, and/or sell copies of the Software, and to
9 // permit persons to whom the Software is furnished to do so, subject to
10 // the following conditions:
12 // The above copyright notice and this permission notice shall be
13 // included in all copies or substantial portions of the Software.
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
19 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
20 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 // ***********************************************************************
25 #define NUNIT_FRAMEWORK
30 using System.Collections;
31 using System.Collections.Generic;
34 namespace NUnit.Framework.Internal.Builders
38 private static Dictionary<CacheEntry, object> instances = new Dictionary<CacheEntry, object>();
40 public static object GetInstanceOf(Type providerType)
42 return GetInstanceOf(providerType, null);
45 public static object GetInstanceOf(Type providerType, object[] providerArgs)
47 CacheEntry entry = new CacheEntry(providerType, providerArgs);
49 object instance = instances.ContainsKey(entry)
54 instances[entry] = instance = Reflect.Construct(providerType, providerArgs);
59 public static void Clear()
61 foreach (CacheEntry key in instances.Keys)
63 IDisposable provider = instances[key] as IDisposable;
73 private Type providerType;
75 public CacheEntry(Type providerType, object[] providerArgs)
77 this.providerType = providerType;
80 public override bool Equals(object obj)
82 CacheEntry other = obj as CacheEntry;
83 if (other == null) return false;
85 return this.providerType == other.providerType;
88 public override int GetHashCode()
90 return providerType.GetHashCode();