| 0,0 → 1,60 |
|---|
| |
| namespace GMap.NET |
| { |
| using System; |
| using System.Diagnostics; |
| using System.Reflection; |
| |
| /// <summary> |
| /// generic for singletons |
| /// </summary> |
| /// <typeparam name="T"></typeparam> |
| public class Singleton<T> where T : new() |
| { |
| // ctor |
| protected Singleton() |
| { |
| if(Instance != null) |
| { |
| throw (new Exception("You have tried to create a new singleton class where you should have instanced it. Replace your \"new class()\" with \"class.Instance\"")); |
| } |
| } |
| |
| public static T Instance |
| { |
| get |
| { |
| if(SingletonCreator.exception != null) |
| { |
| throw SingletonCreator.exception; |
| } |
| return SingletonCreator.instance; |
| } |
| } |
| |
| class SingletonCreator |
| { |
| static SingletonCreator() |
| { |
| try |
| { |
| instance = new T(); |
| } |
| catch(Exception ex) |
| { |
| if(ex.InnerException != null) |
| { |
| exception = ex.InnerException; |
| } |
| else |
| { |
| exception = ex; |
| } |
| Trace.WriteLine("Singleton: " + exception); |
| } |
| } |
| internal static readonly T instance; |
| internal static readonly Exception exception; |
| } |
| } |
| } |