Get semantic model from a classifier VSIX

Question

As R# is not supporting the Roslyn Early Preview C# 6.0 features, the code looks very dull...

I would like to colorize the code using a classifier VSIX. Is it possible to get the semantic model from the Roslyn Language Service for the current document?

Loren Paulsen · Accepted Answer · 2016-07-28 23:31:40Z

8

You need to add a reference to Microsoft.CodeAnalysis.EditorFeatures.Text.dll, then use the following code.

var doc = point.Snapshot.GetOpenDocumentInCurrentContextWithChanges();
var model = await doc.GetSemanticModelAsync();

This requires the Microsoft.CodeAnalysis.EditorFeatures.Text NuGet package (.NET 4.6 required)

edited Jul 28, 2016 at 23:31

Loren Paulsen

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answered May 26, 2014 at 13:11

SLaks

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6 Comments

Liviu Over a year ago

Unfortunately, point.Snapshot.GetOpenDocumentInCurrentContextWithChanges() returns always null

SLaks Over a year ago

@Liviu: What kind of document is it? What's the ContentType of the TextBuffer? Is the Roslyn preview installed in the VS hive you're running in? (with matching version)

Liviu Over a year ago

I've eventually figured out that debug session was running in Exp hive.

Mickey Perlstein Over a year ago

GetOpenDocumentInCurrentContextWithChanges is giving me some weird accessibility issues.

Loren Paulsen Over a year ago

@MickeyPerlstein install the Microsoft.CodeAnalysis.EditorFeatures.Text package, which changes the accessibility of this method by adding an extension method with that name

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