5 // Marek Sieradzki (marek.sieradzki@gmail.com)
7 // (C) 2006 Marek Sieradzki
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:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
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.
30 using System.Collections.Generic;
31 using Microsoft.Build.Framework;
33 namespace Microsoft.Build.Tasks {
34 public class RemoveDuplicates : TaskExtension {
36 ITaskItem [] filtered;
39 public RemoveDuplicates ()
44 public override bool Execute ()
46 if (inputs == null || inputs.Length == 0)
49 Dictionary <string, ITaskItem> items = new Dictionary <string, ITaskItem> ();
50 List <ITaskItem> list = new List <ITaskItem> ();
52 foreach (ITaskItem item in inputs) {
53 if (!items.ContainsKey (item.ItemSpec)) {
54 items.Add (item.ItemSpec, item);
59 filtered = list.ToArray ();
65 public ITaskItem [] Filtered {
66 get { return filtered; }
67 set { filtered = value; }
70 public ITaskItem [] Inputs {
71 get { return inputs; }
72 set { inputs = value; }