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Avoid boxing in Skin dictionary.

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closes #156
This commit is contained in:
NathanSweet 2013-11-07 13:56:16 +01:00
parent 35810a5961
commit e5aca584a2
1 changed files with 15 additions and 1 deletions
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16
spine-csharp/src/Skin.cs
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@ -38,9 +38,10 @@ namespace Spine {
/// <summary>Stores attachments by slot index and attachment name.</summary>
public class Skin {
internal String name;
private Dictionary<KeyValuePair<int, String>, Attachment> attachments =
new Dictionary<KeyValuePair<int, String>, Attachment>(AttachmentComparer.Instance);
public String Name { get { return name; } }
private Dictionary<KeyValuePair<int, String>, Attachment> attachments = new Dictionary<KeyValuePair<int, String>, Attachment>();
public Skin (String name) {
if (name == null) throw new ArgumentNullException("name cannot be null.");
@ -86,5 +87,18 @@ namespace Spine {
}
}
}
// Avoids boxing in the dictionary.
private class AttachmentComparer : IEqualityComparer<KeyValuePair<int, String>> {
internal static readonly AttachmentComparer Instance = new AttachmentComparer();
bool IEqualityComparer<KeyValuePair<int, string>>.Equals (KeyValuePair<int, string> o1, KeyValuePair<int, string> o2) {
return o1.Key == o2.Key && o1.Value == o2.Value;
}
int IEqualityComparer<KeyValuePair<int, string>>.GetHashCode (KeyValuePair<int, string> o) {
return o.Key;
}
}
}
}