Beware of developing a 'simple' plugin for Rider :)

[jeppe.3 (Jeppe Roi Kristensen)]

I started developing a plugin at the start of the year. And will agree that it is sometimes an uphill battle. But! These have worked for me

• https://www.youtube.com/watch?v=y8adERbgt_M I have returned to this often.

• JetBrains/resharper-rider-plugin: https://www.jetbrains.com/help/resharper/sdk/ It has the template for creation and some ok samples to get you started. (It’s referenced in the video above)

• Access the underlying libraries with either dot peek or the built in funcitonality in rider/resharper to decompile libraries. Much of the rider/resharper functionality can be found in this decompiled code. It has helped me a lot.

  

• If you for instance have a context action up and running. Try setting a breakpoint and play around in there to test what different methods do.

But hopefully this forum can also be a help. Do you have a github repo with the current progress?

I unfortunately don’t know how to find usages of a method. But I think that what you want to do can be achived through a ContextAction.

But roughly the skeleton should be something like this

[ContextAction(
    Name = "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
    Description = "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
    GroupType = typeof(CSharpContextActions))]
public class FindUsagesOfParentAction : ContextActionBase
{
    private readonly ICSharpContextActionDataProvider _provider;

    public FindUsagesOfParentAction(ICSharpContextActionDataProvider provider)
    {
        _provider = provider;
    }
    
    // This is called when the user clicks the action
    protected override Action<ITextControl>? ExecutePsiTransaction(ISolution solution, IProgressIndicator progress)
    {
        if (_provider.GetSelectedTreeNode<IMethodDeclaration>() is not { } methodDeclaration)
        {
            // Do something with this
            // If you don't modify the class you are in just return null
            return null;
        }

        return null;
    }

    public override string Text => "Find parent usages";
    public override bool IsAvailable(IUserDataHolder cache)
    {
        // This might catch the outer method. 
        if (_provider.GetSelectedTreeNode<IMethodDeclaration>() is not { } methodDeclaration)
            return false;

        return true;
    }
}

This should at least present you with a context action when on a method.

I hope this help just a bit.