How to get access to Roslyn Syntax Tree (or similar) in a MEF component?

[Hyperwavez]

In short, I'm trying to get access to the code context of the caret position in a KeyProcessor component.

For example:

• Check if the caret position is in the scope of a namespace, class, method, or loop mechanic
• Check if the caret position is between the quotation marks of a string litteral

I have access to the IWpfTextView interface by default, but I'm not sure where to go from there.
I read somewhere that the IBufferGraph interface has similar functionality as the Roslyn Syntax Tree, but I don't understand how to use it for that purpose.

Any ideas?

[madskristensen]

Not sure how to do that. Perhaps @jaredpar knows where to get started?

[reduckted]

VisualStudioWorkspace is the class that you need to import to get access to the Roslyn workspace that Visual Studio is using.

Import(typeof(VisualStudioWorkspace))]
public VisualStudioWorkspace Workspace { get; set; }

From there, you can use Roslyn methods to get the token at a position, etc, etc.

I think you will need to add the Microsoft.VisualStudio.LanguageServices NuGet package to access that type.

[Hyperwavez]

Thank you! This looks like it should do the trick.
I haven't been able to test it yet so I'll leave this open for now, but I'll see if I get it working later today.