Access to the document properties while parsing synchronously

Hello,

In your parser class that inherits LLParserBase, you can add an override like this:

protected override void InitializeParserState(IParserState state, IParseRequest request) {
  base.InitializeParserState(state, request);

  state.CustomData = ((ICodeDocument)request.Snapshot.Document).Properties;
}

That will allow your properties to be accessible in the grammar parser wherever you have access to an IParserState.

Yes, my parser inherits LLParserBase.

I tried that but inside the InitializeParserState method, the ICodeDocument.Properties was not what I needed: It contained only "ITagger".

Hello,

You said you wanted to access the document.Properties from within parser grammar callback methods.  I was saying if you store the document.Properties collection in the state.CustomData then you can access that in any grammar callback method.  You could store or update whatever data you want there.  Or you could use a completely custom object in state.CustomData if you would prefer.

Or if I'm misunderstanding what you are trying to do, please give some more detail on the scenario.  Thanks!

Sorry for my not clearing the points.

When a syntax editor is created, we store some information within the ICodeDocument.Properties. We use this information in grammar callback methods in order to access our database. Even during a synchronous parsing as well, we need to access that information in the grammar callback methods.

Hello,

What I suggested previously should normally work.  When you use the Parse extension method for synchronous parsing though, that actually creates a new CodeDocument and so in that case, the Properties won't be available since those are on the other instance.

Perhaps you could just do something like this to use your original document (instead of a new one) for the synchronized parse instead?

var parser = document.Language.GetService<IParser>();
ITextBufferReader reader = document.CurrentSnapshot.GetReader(0).BufferReader;
ParseRequest request = new ParseRequest(Guid.NewGuid().ToString(), reader, language, document);
request.Snapshot = document.CurrentSnapshot;
var parseData = parser.Parse(request);

Sorry for the late reply and thank you very much. The code you showed works perfectly.

I really appreciate it!