Roslyn Source Code Generator

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 <div class="my-footer">Andrei Ignat , http://msprogrammer.serviciipeweb.ro/</div>
 
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# Roslyn Source Code Generator   =>

( press > )

https://ignatandrei.github.io/Presentations/RoslynSourceCodeGeneratorsprez.html

Code at 
https://ignatandrei.github.io/Presentations/RoslynSourceCodeGenerators.zip
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# Agenda

0. About me
1. What is RSCG ?
3. Simple Generator Examples (generate files from CSV,XML, JSON)
4. Interacting with Code examples (TimeBomb, enum / mock / copy constructor )
3. StackTrace with RSCG , Open Tracing, 
4. Links to get started 
7. Discussion  / Questions ?
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# About me

![:img ignat, 10%](ignat.jpg)
Andrei Ignat http://msprogrammer.serviciipeweb.ro/

www.ASP.NET forum moderator

YouTube 5 minutes .NET and tools : http://bit.ly/5MinTools

Book Making Open Source Component  : http://bit.ly/NetOpenSourceComponent

Book Copy Paste from StackOverflow : https://amzn.to/2PQ8EDc

Monthly meetings:  https://www.meetup.com/Bucharest-A-D-C-E-S-Meetup/

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# Ebook RSCG Examples

Amazon: https://amzn.to/3f6gll3

Free:  https://ignatandrei.github.io/RSCG_Examples/

Github Examples: https://github.com/ignatandrei/RSCG_Examples/

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# What is RSCG ?

https://devblogs.microsoft.com/dotnet/introducing-c-source-generators/

C# 9

![:img how, 80%](how.png)

Demo RSCG_VerySimple :

Forget  Debugger.Launch => IsRoslynComponent

System.Diagnostics.Debugger.Break

Writing logs: DoDiagnostics

Where are the files ?

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# Simple Generator Examples (generate files from CSV,XML, JSON)

Demo SourceGenerators/SourceGenerators.sln ( CSV and XML )

Demo  JsonToClass ?

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# Interacting with Code Examples

## Detailed Practical example to generate code from existing

RSCG_TimeBombComment\RSCG_TimeBombComment.sln

## More examples from nuget 
enum / copy constructor / mock
InteractingWithCode\AdvEx.sln

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# StackTrace with RSCG , Open Tracing

Demo  StackTracing

https://github.com/open-telemetry/opentelemetry-dotnet/issues/762#issuecomment-804958106

SourceGenerators\StackTracing\AutoTracing\AutoTracing.sln

Jaeger
docker run -d --name jaeger -p 5775:5775/udp -p 6831:6831/udp -p 6832:6832/udp -p 5778:5778 -p 16686:16686 -p 14268:14268 -p 14250:14250  jaegertracing/all-in-one:1.22

http://localhost:16686/

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# Links to get started

https://github.com/dotnet/roslyn/blob/master/docs/features/source-generators.md

https://github.com/dotnet/roslyn/blob/master/docs/features/source-generators.cookbook.md

https://github.com/dotnet/roslyn-sdk/tree/master/samples/CSharp/SourceGenerators

https://devblogs.microsoft.com/dotnet/introducing-c-source-generators/

https://turnerj.com/blog/the-pain-points-of-csharp-source-generators

# Future

Integrated in .NET 6 by Microsoft :

https://devblogs.microsoft.com/dotnet/announcing-net-6-preview-5/#libraries-jsonserializer-source-generation

https://docs.microsoft.com/ro-ro/dotnet/core/extensions/logger-message-generator

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# Questions?

Andrei Ignat http://msprogrammer.serviciipeweb.ro/

Amazon: https://amzn.to/3f6gll3

Free:  https://ignatandrei.github.io/RSCG_Examples/

Github Examples: https://github.com/ignatandrei/RSCG_Examples/

Monthly meetings:  https://www.meetup.com/Bucharest-A-D-C-E-S-Meetup/