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Discussion on: How can I cache output of a method's parameters, so I don't have to create a new object when the input(s) are the same?

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Replies for: This is a simple implementation of cache. If you use threads, then better use Concurrent Dictionary. docs.microsoft.com/dotnet/api/syst... For exa...

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baenencalin profile image
Calin Baenen •

What if I want to retain the original value(s) of the parameters, like Python's LRU cache?

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Aleksey Podoba • • Edited

I'm not good at Python, but if I understood you correctly, you have need retain Type type and string val into cache. In this case you can define a new class and implements properties for these params or use Tuple types.
ASP.NET Core or .NET 5 have ready implementation of cache

For example

    public class MyParams
    {
        public MyParams(Type type, string val)
        {
            Type = type;
            Val = val;
        }

        public Type Type { get; }

        public string Val { get; }
    }
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Or for C# 9

    public class MyParams
    { 
        public Type Type { get; init;}

        public string Val { get; init;}
    }
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public JankyToken Create(MyParams myParams)
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baenencalin profile image
Calin Baenen •

Okay. Thanks for your help.