RSGC-Enum-part 3

 

 

name Enum
nuget

https://www.nuget.org/packages/AOPMethodsCommon/
https://www.nuget.org/packages/AOPMethodsGenerator/

link http://msprogrammer.serviciipeweb.ro/category/roslyn/
author Andrei Ignat

This will generate code to fast parsing a int or a string to an enum
 

The code that you start with is


    [AutoEnum(template = EnumMethod.GenerateExtensionCode)]

    public enum MathematicalOperation

    {

    None=0,

    Add=1,

    Multiplication=2

    }


The code that you will use is



    var fromInt = enumMathematicalOperation.ParseExactMathematicalOperation(1);

    var fromString = enumMathematicalOperation.ParseExactMathematicalOperation("add");

    Console.WriteLine(fromInt + "-"+fromString);

 

The code that is generated is


      [GeneratedCode("AOPMethods", "")] 

      [CompilerGenerated]

      public  static partial class enumMathematicalOperation{ 

       /*

        public static int idMathematicalOperation(){

        System.Diagnostics.Debugger.Break();

        return 1;

        }

        */

        public static RSCG_Enum.MathematicalOperation ParseExactMathematicalOperation(this long value, RSCG_Enum.MathematicalOperation? defaultValue = null){

                if(0 == value)

                    return RSCG_Enum.MathematicalOperation.None;

                        if(1 == value)

                    return RSCG_Enum.MathematicalOperation.Add;

                        if(2 == value)

                    return RSCG_Enum.MathematicalOperation.Multiplication;

            

            if(defaultValue != null)

                return defaultValue.Value;

    

            throw new ArgumentException("cannot find " + value +" for RSCG_Enum.MathematicalOperation  ");

        }

       

        public static RSCG_Enum.MathematicalOperation ParseExactMathematicalOperation(this string value, RSCG_Enum.MathematicalOperation? defaultValue = null){

            //trying to see if it is a value inside

            //if(!string.IsNullOrWhiteSpace)

            if(long.TryParse(value, out long valueParsed)){

                return ParseExactMathematicalOperation(valueParsed);

            }

    

                if(0==string.Compare("None" , value, StringComparison.InvariantCultureIgnoreCase))

                    return RSCG_Enum.MathematicalOperation.None;

                        if(0==string.Compare("Add" , value, StringComparison.InvariantCultureIgnoreCase))

                    return RSCG_Enum.MathematicalOperation.Add;

                        if(0==string.Compare("Multiplication" , value, StringComparison.InvariantCultureIgnoreCase))

                    return RSCG_Enum.MathematicalOperation.Multiplication;

            

    

            if(defaultValue != null)

                return defaultValue.Value

            throw new ArgumentException("cannot find " + value +" for RSCG_Enum.MathematicalOperation  ");

        }

        /*

        

        */

        

      }

Example Code: https://github.com/ignatandrei/RSCG_Examples/tree/main/Enum