[WIP] Implement code snippet completer

[jahn96]

References

Starts working on implementing code snippet completion.
This pull request is related to the issue #208

Code changes

• Create a package called code-snippet-completion
• Add @krassowski/completion-manager to dev-dependencies in package.json
• Add ICompletionProviderManager as optional token in activate function of your extension
• Need to fix the error on Plugin '@krassowski/jupyterlab-lsp:completion' failed to activate and No provider for: @krassowski/completion-manager:ICompletionProviderManager. - could be related to the issue of setting up the environment.
• Need to create a codeSnippetCompletionProvider class that implements ICompletionProviderManager
• Need to register the class

User-facing changes

User will be able to see the autocomplete options for code snippets they have saved.

Backwards-incompatible changes

Chores

• linted
• tested
• documented
• changelog entry

[krassowski]

Oh, so you thought about including it in the distribution of jupyterlab-lsp? I thought that you were going to include it in the snippets extension directly instead.

[kpinnipa]

We were thinking it might be better to include it in the distribution of jupyterlab-lsp, do you think it would be better to include it in the snippets extension directly?

[jahn96]

We were thinking that it would rather make sense to have code snippet autocomplete here as vscode-lsp provides code snippet autocomplete. But, now I think that it would be actually better to work in the snippets extension directly because it would be easier to fetch the saved snippets and so on. Sorry for the confusion and thank you for your feedback.

[krassowski]

But, now I think that it would be actually better to work in the snippets extension directly because it would be easier to fetch the saved snippets and so on.

Exactly, it will be just easier for you. Plus, once the ICompletionProviderManager lands in JupyterLab core (again, probably for 4.0) your users will be able to have completion with snippets without having to have this LSP extension :)

[krassowski]

But of course, if it is convenient for you to start working/experimenting here on this PR - absolutely feel free to do so :)

[krassowski]

Hi, I am going to close this one as #600 on which one it is based was superseded by the work upstream. Please see #600 (comment) for references. Hopefully we can revisit it after JupyterLab 4.0 release :)