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

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[AutoEnum(template = EnumMethod.GenerateExtensionCode)]
 
public enum MathematicalOperation
 
{
 
None=0,
 
Add=1,
 
Multiplication=2
 
}

The code that you will use is

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var fromInt = enumMathematicalOperation.ParseExactMathematicalOperation(1);
 
var fromString = enumMathematicalOperation.ParseExactMathematicalOperation("add");
 
Console.WriteLine(fromInt + "-"+fromString);

 

The code that is generated is

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[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

All RSCG

NrBlog Post
1RSCG–part 1
2RSCG- AppVersion–part 2
3http://msprogrammer.serviciipeweb.ro/2021/02/17/rsgc-enum-part-3/
4RSGC-JSON to Class- part 4
5RSGC-Constructor – Deconstructor – part 5
6RSGC – DTO Mapper – part 6
7RSGC – Skinny Controllers- part 7
8RSGC-Builder Design Pattern – part 8
9RSGC- MetadataFromObject – part 9
10RSGC- Dynamic Mock – part 10
11RSCG- Method Decorator – part 11
12RSCG – Curry – Partial function – part 12
13RSCG- part 13 – IFormattable
14RSCG- part 14 – DP_Decorator
15RSCG- part 15 – Expression Generator
16RSCG- part 16 – Many Others
17RSCG- the book
18RSCG–Template Rendering- part 17
19CI Version
20HttpClientGenerator
21Query from database
22AutoRegister
23TinyTypes
24Static2Interface
25AppSettings
26Properties
27
Roslyn Source Code Generators