Monaco-editor: Access to Markers?

[ptyork]

I'm killing myself trying to figure out how to get access to the info/warning/error markers created by the language linters. Is this possible?

I've found how I can access decorations (IModel.onDidChangeDecorations and a few get... methods in ITextModelWithDecorations). I can filter for decorations that are "IModelDecorationsChangedEventDecorationData.isForValidation), but that doesn't give me access to the marker.

I've found how I can SET markers (monaco.editor.setModelMarkers).

Am I missing something, or are the markers currently not exposed? Is there a preferred method of enumerating errors and warnings?

[jrieken]

some ideas how to do it: https://github.com/Microsoft/vscode/issues/7232#issuecomment-229692270

[wysisoft]

specifically for typescript, a total hack but if you relate the editor to its model, theres a line in mode.js thats

monaco.editor.setModelMarkers(monaco.editor.getModel(e), t._selector, r)

and I think r are all the markers for the editor.

[domoritz]

Has anything changed here or is it still not possible to access markers or error messages?

[electroma]

Please take a look at https://github.com/Microsoft/vscode/pull/31045. Does it provide required API?

[ptyork]

Thanks @electroma. It does appear that this would be sufficient. I had to drop Monaco for Ace a while back because of this (and lack of HTML+CSS linting) for my specific project. However, I'll definitely revisit it once this PR is merged, as I do like the editor better in general.

[electroma]

Thanks for you prompt reply @ptyork! I'm trying to make similar decision now. In my case it's JSON editor with custom validation and autocompletion. Monaco looks very good, but some vscode APIs are not exposed now.

[wysisoft]

the good thing about open source software -> I get markers like this

var setModelMarkers = monaco.editor.setModelMarkers;
monaco.editor.setModelMarkers = function (model, owner, markers) {
setModelMarkers.call(monaco.editor, model, owner, markers);
if (markers.length == 0) {
//there are no errors
}
else
{
//there are errors
}
}

[electroma]

Thank you for workaround @wysisoft! Sure it's possible to monkey patch monaco, but only in a short term.