first version

README.md

@@ -1,18 +1,18 @@
-# RSCG - 251 Examples of Roslyn Source Code Generators  / 16 created by Microsoft / 
+# RSCG - 252 Examples of Roslyn Source Code Generators  / 16 created by Microsoft / 
 
-The RSCG_Examples repository is a comprehensive documentation system that automatically processes and showcases 251 Roslyn Source Code Generator (RSCG) examples. The system transforms individual RSCG projects into structured documentation with code examples and cross-referenced content with a searchable website  and code example  exports.
+The RSCG_Examples repository is a comprehensive documentation system that automatically processes and showcases 252 Roslyn Source Code Generator (RSCG) examples. The system transforms individual RSCG projects into structured documentation with code examples and cross-referenced content with a searchable website  and code example  exports.
 
 This system serves as both a learning resource for .NET developers interested in source generators and an automated pipeline for maintaining up-to-date documentation about the RSCG ecosystem
 
-## Latest Update : 2025-12-18 => 18 December 2025
+## Latest Update : 2026-01-28 => 28 January 2026
 
 If you want to see examples with code, please click  ***[List V2](https://ignatandrei.github.io/RSCG_Examples/v2/docs/List-of-RSCG)***
 
 If you want just those from Microsoft, please click ***[Microsoft](https://ignatandrei.github.io/RSCG_Examples/v2/docs/Authors/Microsoft)***
 
 If you want to see by category, please click ***[category](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples)***
 or click any category below 
-[actor](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#actor)  -[ai](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#ai)  -[aop](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#aop)  -[api](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#api)  -[async](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#async)  -[bitwise](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#bitwise)  -[blazor](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#blazor)  -[bool](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#bool)  -[builder](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#builder)  -[clone](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#clone)  -[codetostring](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#codetostring)  -[commandline](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#commandline)  -[console](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#console)  -[constructor](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#constructor)  -[database](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#database)  -[decorator](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#decorator)  -[dependencyinjection](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#dependencyinjection)  -[disposer](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#disposer)  -[enhancementclass](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#enhancementclass)  -[enhancementproject](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#enhancementproject)  -[enum](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#enum)  -[equals](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#equals)  -[filestocode](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#filestocode)  -[functionalprogramming](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#functionalprogramming)  -[hangfire](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#hangfire)  -[interface](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#interface)  -[linq](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#linq)  -[mapper](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mapper)  -[mcp](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mcp)  -[mediator](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mediator)  -[mixin](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mixin)  -[mvc](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mvc)  -[mvvm](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mvvm)  -[optimizer](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#optimizer)  -[primitiveobsession](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#primitiveobsession)  -[profiler](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#profiler)  -[rx](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#rx)  -[serializer](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#serializer)  -[signalr](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#signalr)  -[statemachine](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#statemachine)  -[templating](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#templating)  -[tests](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#tests)  -[validator](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#validator)  -[winapi](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#winapi)  -
+[actor](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#actor)  -[ai](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#ai)  -[aop](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#aop)  -[api](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#api)  -[async](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#async)  -[bitwise](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#bitwise)  -[blazor](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#blazor)  -[bool](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#bool)  -[builder](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#builder)  -[clone](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#clone)  -[codetostring](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#codetostring)  -[commandline](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#commandline)  -[console](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#console)  -[constructor](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#constructor)  -[database](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#database)  -[decorator](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#decorator)  -[dependencyinjection](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#dependencyinjection)  -[disposer](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#disposer)  -[enhancementclass](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#enhancementclass)  -[enhancementproject](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#enhancementproject)  -[enum](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#enum)  -[equals](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#equals)  -[filestocode](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#filestocode)  -[functionalprogramming](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#functionalprogramming)  -[hangfire](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#hangfire)  -[idempotency](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#idempotency)  -[interface](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#interface)  -[linq](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#linq)  -[mapper](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mapper)  -[mcp](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mcp)  -[mediator](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mediator)  -[mixin](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mixin)  -[mvc](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mvc)  -[mvvm](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#mvvm)  -[optimizer](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#optimizer)  -[primitiveobsession](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#primitiveobsession)  -[profiler](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#profiler)  -[rx](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#rx)  -[serializer](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#serializer)  -[signalr](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#signalr)  -[statemachine](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#statemachine)  -[templating](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#templating)  -[tests](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#tests)  -[validator](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#validator)  -[winapi](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#winapi)  -
 
 
 ## If you have a Roslyn Source Code Generator, please create an issue.
@@ -24,8 +24,30 @@ If you want to be notified each time I add a new RSCG example , please click htt
 
 ## Content 
 
-Those are the 251 Roslyn Source Code Generators that I have tested you can see and download source code example.
+Those are the 252 Roslyn Source Code Generators that I have tested you can see and download source code example.
 ( including 16 from Microsoft )
+### 252. [RSCG_idempotency](https://ignatandrei.github.io/RSCG_Examples/v2/docs/RSCG_idempotency) , in the [Idempotency](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#idempotency) category 
+
+Generated on : 2026-01-28 => 28 January 2026
+
+<details>
+  <summary>Expand</summary>
+
+
+
+Author: Ignat Andrei
+
+Automatic generating Idempotency for function parameters 
+
+Nuget: [https://www.nuget.org/packages/RSCG_idempotency/](https://www.nuget.org/packages/RSCG_idempotency/) 
+
+
+Link: [https://ignatandrei.github.io/RSCG_Examples/v2/docs/RSCG_idempotency](https://ignatandrei.github.io/RSCG_Examples/v2/docs/RSCG_idempotency)
+
+Source: [https://github.com/ignatandrei/RSCG_idempotency](https://github.com/ignatandrei/RSCG_idempotency)
+
+</details>
+
 ### 251. [OrderedBuildersGenerator](https://ignatandrei.github.io/RSCG_Examples/v2/docs/OrderedBuildersGenerator) , in the [Builder](https://ignatandrei.github.io/RSCG_Examples/v2/docs/rscg-examples#builder) category 
 
 Generated on : 2025-12-18 => 18 December 2025

later.md

@@ -1,6 +1,6 @@
 # Just later
 
-## Latest Update : 2025-12-18 => 18 December 2025
+## Latest Update : 2026-01-28 => 28 January 2026
 
 
 

v2/.tours/RSCG_idempotency.tour

@@ -0,0 +1,54 @@
+
+{
+  "$schema": "https://aka.ms/codetour-schema",
+  "title": "RSCG_idempotency",
+  "steps": 
+  [
+    {
+      "file": "rscg_examples/RSCG_idempotency/src/IdempotencyDemo/IdempotencyDemo.csproj",
+      "description": "First, we add Nuget  [RSCG_idempotency](https://www.nuget.org/packages/RSCG_idempotency/) in csproj  ",
+      "pattern": "RSCG_idempotency"
+    }
+
+        ,{
+        "file": "rscg_examples/RSCG_idempotency/src/IdempotencyDemo/Purchase.cs",
+        "description": "File Purchase.cs  ",
+        "pattern": "this is the code"
+        }
+
+        ,{
+        "file": "rscg_examples/RSCG_idempotency/src/IdempotencyDemo/Program.cs",
+        "description": "File Program.cs \r\n>> dotnet run --project rscg_examples/RSCG_idempotency/src/IdempotencyDemo/IdempotencyDemo.csproj ",
+        "pattern": "this is the code"
+        }
+
+
+        ,{
+        "file": "rscg_examples/RSCG_idempotency/src/IdempotencyDemo/obj/GX/RSCG_idempotency/RSCG_idempotency.IPGen/TimeProvider.gen.cs",
+        "description": "Generated File 4  from 4 : TimeProvider.gen.cs ",
+        "line": 1
+        }
+
+        ,{
+        "file": "rscg_examples/RSCG_idempotency/src/IdempotencyDemo/obj/GX/RSCG_idempotency/RSCG_idempotency.IPGen/Microsoft.CodeAnalysis.EmbeddedAttribute.cs",
+        "description": "Generated File 3  from 4 : Microsoft.CodeAnalysis.EmbeddedAttribute.cs ",
+        "line": 1
+        }
+
+        ,{
+        "file": "rscg_examples/RSCG_idempotency/src/IdempotencyDemo/obj/GX/RSCG_idempotency/RSCG_idempotency.IPGen/IdempotentAttribute.gen.cs",
+        "description": "Generated File 2  from 4 : IdempotentAttribute.gen.cs ",
+        "line": 1
+        }
+
+        ,{
+        "file": "rscg_examples/RSCG_idempotency/src/IdempotencyDemo/obj/GX/RSCG_idempotency/RSCG_idempotency.IPGen/IdempotencyDemo_Purchase_PurchaseNow_UniqueId.cs",
+        "description": "Generated File 1  from 4 : IdempotencyDemo_Purchase_PurchaseNow_UniqueId.cs ",
+        "line": 1
+        }
+
+  ],
+
+  "ref": "main"
+
+}

v2/Generator/all.csv

@@ -250,3 +250,4 @@ Nr,Key,Source,Category
 249,Silhouette, https://github.com/kevingosse/Silhouette,Profiler
 250,Facet.Search, https://github.com/Tim-Maes/Facet.Search,Database
 251,OrderedBuildersGenerator, https://github.com/Georgiy-Petrov/OrderedBuildersGenerator,Builder
+252,RSCG_idempotency, https://github.com/ignatandrei/RSCG_idempotency,Idempotency

v2/GeneratorData/Category.cs

@@ -47,5 +47,6 @@ public enum Category
     MCP= 42,
     Bool=43,
     Profiler=44,
+    Idempotency=45
 }
 

v2/RSCGExamplesData/GeneratorDataRec.json

@@ -1521,5 +1521,11 @@
     "Category": 4,
     "dtStart": "2025-12-18T00:00:00",
     "show": true
+  },
+  {
+    "ID":"RSCG_idempotency",
+    "Category":45,
+    "dtStart":"2026-01-28T00:00:00",
+    "show":true
   }
 ]

v2/book/examples/RSCG_idempotency.html

@@ -0,0 +1,74 @@
+
+<h1>RSCG nr 252 :  RSCG_idempotency</h1>
+
+<h2>Info</h2>
+Nuget : <a href="https://www.nuget.org/packages/RSCG_idempotency/" target="_blank">https://www.nuget.org/packages/RSCG_idempotency/</a>
+
+<p>You can find more details at : <a href="https://github.com/ignatandrei/RSCG_idempotency" target="_blank"> https://github.com/ignatandrei/RSCG_idempotency</a></p>
+
+<p>Author :Ignat Andrei</p>
+
+<p>Source: <a href="https://github.com/ignatandrei/RSCG_idempotency" target="_blank">https://github.com/ignatandrei/RSCG_idempotency</a> </p>
+
+<h2>About</h2>
+
+Generating code for idempotency
+
+<h2>
+    How to use
+</h2>
+<h3>
+    Add reference to the  <a href="https://www.nuget.org/packages/RSCG_idempotency/" target="_blank">RSCG_idempotency</a> in the csproj
+</h3>
+<img src="images/RSCG_idempotency/IdempotencyDemo.csproj.png" width="580" height="580" />
+
+<h3>This was for me the <b>starting</b> code</h3>
+
+        <br />
+        I have <b>coded</b> the file Program.cs
+        <br />
+    <img src="images/RSCG_idempotency/csFiles/Program.cs.png" width="580" height="580" />
+    <hr />
+
+        <br />
+        I have <b>coded</b> the file Purchase.cs
+        <br />
+    <img src="images/RSCG_idempotency/csFiles/Purchase.cs.png" width="580" height="580" />
+    <hr />
+    <h3>And here are the <i>generated</i> files</h3>
+
+        <br />
+        The file <i>generated</i> is IdempotencyDemo_Purchase_PurchaseNow_UniqueId.cs
+        <br />
+    <img src="images/RSCG_idempotency/generated/IdempotencyDemo_Purchase_PurchaseNow_UniqueId.cs.png" width="580" height="580" />
+
+        <br />
+        The file <i>generated</i> is IdempotentAttribute.gen.cs
+        <br />
+    <img src="images/RSCG_idempotency/generated/IdempotentAttribute.gen.cs.png" width="580" height="580" />
+
+        <br />
+        The file <i>generated</i> is Microsoft.CodeAnalysis.EmbeddedAttribute.cs
+        <br />
+    <img src="images/RSCG_idempotency/generated/Microsoft.CodeAnalysis.EmbeddedAttribute.cs.png" width="580" height="580" />
+
+        <br />
+        The file <i>generated</i> is TimeProvider.gen.cs
+        <br />
+    <img src="images/RSCG_idempotency/generated/TimeProvider.gen.cs.png" width="580" height="580" />
+
+<p>
+    You can download the code and this page as pdf from
+    <a target="_blank" href='https://ignatandrei.github.io/RSCG_Examples/v2/docs/RSCG_idempotency'>
+        https://ignatandrei.github.io/RSCG_Examples/v2/docs/RSCG_idempotency
+    </a>
+</p>
+
+
+<p>
+    You can see the whole list at 
+    <a target="_blank" href='https://ignatandrei.github.io/RSCG_Examples/v2/docs/List-of-RSCG'>
+        https://ignatandrei.github.io/RSCG_Examples/v2/docs/List-of-RSCG
+    </a>
+</p>
+

v2/book/list.html

@@ -17,7 +17,7 @@
 </head>
 <body>
     <h1>
-This is the list of 251 RSCG with examples =>
+This is the list of 252 RSCG with examples =>
     </h1>
 
 <table >
@@ -1030,6 +1030,10 @@ <h1>
             <td>251</td>
             <td><a href="examples/OrderedBuildersGenerator.html">OrderedBuildersGenerator</a></td>
         </tr>
+            <tr>
+            <td>252</td>
+            <td><a href="examples/RSCG_idempotency.html">RSCG_idempotency</a></td>
+        </tr>
 </table>
 
 

v2/book/pandocHTML.yaml

@@ -265,6 +265,7 @@ input-files:
 - examples/Silhouette.html
 - examples/Facet.Search.html
 - examples/OrderedBuildersGenerator.html
+- examples/RSCG_idempotency.html
 
 # or you may use input-file: with a single value
 # defaults:

v2/rscg_examples/RSCG_idempotency/description.json

@@ -0,0 +1,22 @@
+{
+   "generator":{
+      "name":"RSCG_idempotency",
+      "nuget":[
+         "https://www.nuget.org/packages/RSCG_idempotency/"
+      ],
+      "link":"https://github.com/ignatandrei/RSCG_idempotency",
+      "author":"Ignat Andrei",
+      "source":"https://github.com/ignatandrei/RSCG_idempotency"
+   },
+   "data":{
+      "goodFor":["Generating code for idempotency"],
+      "csprojDemo":"IdempotencyDemo.csproj",
+      "csFiles":["Program.cs","Purchase.cs"],
+      "excludeDirectoryGenerated":[""],
+      "includeAdditionalFiles":[""]
+   },
+   "links":{
+      "blog":"",
+      "video":""
+   }
+}

v2/rscg_examples/RSCG_idempotency/nuget.txt

@@ -0,0 +1 @@
+Automatic generating Idempotency for function parameters