The screen shot below shows the versions that are active at time of writing this post Step 2 – Add a Reference to Your Source Generator Project to a Consuming Projectįor the purpose of this guide, I am using a project reference to consume the source generator. Whist in the project file, make sure that you have the latest versions of the core NuGet packages that you require / are useful to work with source generators. You will need to do this in the text editor as there is no user interface to add this.

The property to add is IsRoslynComponent and the value should be set to true The first step in making use of the new debugging functionality is to add a new entry to your project. Step 1 – Add the IsRoslynComponent Property to Your Source Generator Project This is shown as one of the components installed with the Visual Studio extension development workload.įor this guide, I am assuming that you already have a source generator that you have written, but if not, I have put the source code for this guide on GitHub if you want to download a working example. NET Compiler Platform SDK component installed as part of Visual Studio. In order to take advantage of the new debugging features in VS2019, you will need to make sure that you have the. If you are new to source generators, there are lots of great resources out there, but a good starting point is this video from the ON.NET show. Therefore, to give some visibility to this new functionality, I have written this short step-by-step guide. With the RTM release of 16.10 Visual Studio 2019, things now get a bit easier with the introduction the new IsRoslynComponent element in the csproj file and a new debugger launch option of Roslyn Component.Īt time of writing, this has not had much publicity, other than a short paragraph in the release notes and a short demo in an episode of Visual Studio Toolbox. I’m a big fan of source generators that were added in C#9, but debugging has been a bit of a pain so far, involving forcing breakpoints in code and attaching the debugger during compilation.

Random fake generator visual studio