public virtual void Set <T, TResult>(Func <T, TResult> conversionMethod, string scenario = null)
{
var key = new ConvertionKey(scenario, typeof(T), typeof(TResult));
Func <object, object> objMutator = obj => conversionMethod((T)obj);
_mutators.AddOrUpdate(key, (ConvertionKey k) => objMutator, (k, oldValue) => objMutator);
}
public virtual Func <object, object> Get(Type sourceType, Type targetType, string scenario = null)
{
if (sourceType.IsByRef)
{
sourceType = sourceType.GetElementType();
}
if (targetType.IsByRef)
{
targetType = sourceType.GetElementType();
}
if (sourceType == targetType)
{
return(new Func <object, object>(JustReturn));
}
if (sourceType == typeof(void))
{
return(new Func <object, object>(JustReturn));
}
Func <object, object> mutator;
var key = new ConvertionKey(scenario, sourceType, targetType);
if (_mutators.TryGetValue(key, out mutator))
{
return(mutator);
}
// Fail back to default if not find.
key = new ConvertionKey(null, sourceType, targetType);
if (_mutators.TryGetValue(key, out mutator))
{
return(mutator);
}
throw new InvalidOperationException(string.Format("The mutation function from {0} to {1} has not been set yet.", sourceType, targetType));
}