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@ -46,10 +46,22 @@ namespace TNodeCore.Runtime.RuntimeCache{ |
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return _converter.Convert((T1)value); |
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return _converter.Convert((T1)value); |
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} |
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} |
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} |
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} |
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//Store a t1 to t2 conversion but use two way converter's convert back method |
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internal class PortConverterHelperReverse<T1, T2> : IPortConverterHelper{ |
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private readonly TwoWayPortTypeConversion<T2, T1> _converter; |
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public object Convert(object value){ |
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return _converter.ConvertBack((T1)value); |
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} |
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public PortConverterHelperReverse(Type type){ |
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_converter = Activator.CreateInstance(type) as TwoWayPortTypeConversion<T2, T1>; |
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} |
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} |
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internal interface IPortConverterHelper{ |
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internal interface IPortConverterHelper{ |
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public object Convert(object value); |
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public object Convert(object value); |
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} |
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} |
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public class PropertyNotFoundException : Exception{ |
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public class PropertyNotFoundException : Exception{ |
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@ -128,16 +140,15 @@ namespace TNodeCore.Runtime.RuntimeCache{ |
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} |
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} |
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private void CacheRuntimePortTypeConversion(Type type){ |
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private void CacheRuntimePortTypeConversion(Type type){ |
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if (type.BaseType == null) return; |
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if (type.BaseType != null){ |
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if (type.BaseType != null){ |
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var genericType = type.BaseType.GetGenericTypeDefinition(); |
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var genericType = type.BaseType.GetGenericTypeDefinition(); |
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if (genericType != typeof(PortTypeConversion<,>)){ |
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if (genericType != typeof(PortTypeConversion<,>)|| genericType != typeof(TwoWayPortTypeConversion<,>)){ |
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return; |
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return; |
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} |
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} |
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} |
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} |
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else{ |
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return; |
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} |
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//Forward direction |
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var type1 = type.BaseType.GetGenericArguments()[0]; |
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var type1 = type.BaseType.GetGenericArguments()[0]; |
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var type2 = type.BaseType.GetGenericArguments()[1]; |
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var type2 = type.BaseType.GetGenericArguments()[1]; |
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var specificType = typeof(PortConverterHelper<,>).MakeGenericType(type1, type2); |
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var specificType = typeof(PortConverterHelper<,>).MakeGenericType(type1, type2); |
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@ -149,20 +160,74 @@ namespace TNodeCore.Runtime.RuntimeCache{ |
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CachedPortConverters.Add(type1,new Dictionary<Type,IPortConverterHelper>()); |
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CachedPortConverters.Add(type1,new Dictionary<Type,IPortConverterHelper>()); |
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} |
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} |
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CachedPortConverters[type1].Add(type2,instance); |
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CachedPortConverters[type1].Add(type2,instance); |
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//Reverse direction |
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if(type.BaseType.GetGenericTypeDefinition()==typeof(TwoWayPortTypeConversion<,>)){ |
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var specificTypeReverse = typeof(PortConverterHelperReverse<,>).MakeGenericType(type2, type1); |
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var instanceReverse = Activator.CreateInstance(specificTypeReverse, type) as IPortConverterHelper; |
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if (instanceReverse == null){ |
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return; |
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} |
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if (!CachedPortConverters.ContainsKey(type2)){ |
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CachedPortConverters.Add(type2,new Dictionary<Type,IPortConverterHelper>()); |
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} |
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CachedPortConverters[type2].Add(type1,instanceReverse); |
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} |
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} |
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private readonly Dictionary<Tuple<Type,Type>,bool> _possibleImplicitConversions = new (); |
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public bool HasImplicitConversion(Type baseType, Type targetType){ |
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var tuple = new Tuple<Type, Type>(baseType, targetType); |
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if (_possibleImplicitConversions.ContainsKey(tuple)){ |
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return _possibleImplicitConversions[tuple]; |
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} |
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var res =baseType.GetMethods(BindingFlags.Public | BindingFlags.Static) |
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.Where(mi => mi.Name == "op_Implicit" && mi.ReturnType == targetType) |
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.Any(mi => { |
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ParameterInfo pi = mi.GetParameters().FirstOrDefault(); |
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return pi != null && pi.ParameterType == baseType; |
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}); |
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return _possibleImplicitConversions[tuple] = res; |
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} |
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private void CachingImplicitConversion(Type baseType, Type targetType){ |
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if (HasImplicitConversion(baseType, targetType)) return; |
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//Create Implicit Conversion Helper that caches the implicit cast function |
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var typeConverter = Activator.CreateInstance(typeof(ImplicitConversionHelper<,>).MakeGenericType(baseType, targetType)) as IPortConverterHelper; |
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if (!CachedPortConverters.ContainsKey(baseType)){ |
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CachedPortConverters.Add(baseType,new Dictionary<Type,IPortConverterHelper>()); |
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} |
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CachedPortConverters[baseType].Add(targetType,typeConverter); |
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} |
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} |
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public object GetConvertedValue(Type from,Type to,object value){ |
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public object GetConvertedValue(Type from,Type to,object value){ |
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if(!CachedPortConverters.ContainsKey(from)){ |
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if(!CachedPortConverters.ContainsKey(from)){ |
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throw new ConversionFailedException("No converter found for type "+from); |
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//Find the cached port failed ,check if there is an implicit conversion |
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//This inner cache method would only run once,so add a guard to prevent it run again,even though the function itself has a guard statement. |
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if(HasImplicitConversion(from,to)){ |
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CachingImplicitConversion(from,to); |
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} |
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} |
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} |
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if(!CachedPortConverters[from].ContainsKey(to)){ |
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if(!CachedPortConverters[from].ContainsKey(to)){ |
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//Just like above, this function should be checked in here too |
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if(HasImplicitConversion(from,to)){ |
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CachingImplicitConversion(from,to); |
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} |
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return value; |
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return value; |
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} |
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} |
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return CachedPortConverters[from][to].Convert(value); |
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return CachedPortConverters[from][to].Convert(value); |
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} |
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} |
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private bool GetImplcitConvertedValue(Type from, Type to){ |
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throw new NotImplementedException(); |
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} |
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public List<Type> GetSupportedTypes(Type type){ |
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public List<Type> GetSupportedTypes(Type type){ |
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if(!CachedPortConverters.ContainsKey(type)){ |
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if(!CachedPortConverters.ContainsKey(type)){ |
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return null; |
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return new List<Type>(); |
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} |
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} |
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return CachedPortConverters[type].Keys.ToList(); |
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return CachedPortConverters[type].Keys.ToList(); |
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} |
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} |
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@ -248,6 +313,25 @@ namespace TNodeCore.Runtime.RuntimeCache{ |
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} |
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} |
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public class ImplicitConversionHelper<T1,T2> : IPortConverterHelper{ |
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public Func<T1, T2> ConvertFunc; |
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public ImplicitConversionHelper(){ |
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//Caching the implicit method that converts t1 to t2 |
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var method = typeof(T2).GetMethod("op_Implicit", BindingFlags.Public | BindingFlags.Static, null, new[] { typeof(T1) }, null); |
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if (method == null){ |
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//Search it in T1 |
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method = typeof(T1).GetMethod("op_Implicit", BindingFlags.Public | BindingFlags.Static, null, new[] { typeof(T2) }, null); |
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} |
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//Create the delegate |
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if (method != null) |
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ConvertFunc = (Func<T1, T2>) Delegate.CreateDelegate(typeof(Func<T1, T2>), method); |
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} |
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public object Convert(object value){ |
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return ConvertFunc((T1) value); |
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} |
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} |
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public class ConversionFailedException : Exception{ |
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public class ConversionFailedException : Exception{ |
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public ConversionFailedException(string noConverterFoundForType):base(noConverterFoundForType){ |
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public ConversionFailedException(string noConverterFoundForType):base(noConverterFoundForType){ |
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