In what order are LanguageServerFactory and LanguageServerEnablementSupport's methods called?

[InSyncWithFoo]

I'm currently overriding isEnabled(), setEnabled(), createConnectionProvider() and createLanguageClient(). The third of which must return an instance of StreamConnectionProvider without fail. However, this can only success depending on a specific user setting.

Is isEnabled() guaranteed to always be called before createConnectionProvider()? When are the other methods called?

It would be useful to have more information about these in doc comments. They are currently stating only what should be obvious from the method names alone:

Returns true if the language server is enabled for the given project and false otherwise.

[angelozerr]

IsEnabled is used while collecting associated language servers for a given file.

This step is done each time that an lsp feature like completion is processed.

This step is done before starting the language server, in other words before creating a connection or a client.

[angelozerr]

@InSyncWithFoo I apologize but my PR with isEnabled was totally bugged, I created a PR #349 to fix it.

[angelozerr]

I close this discussion since isEnabled work correctly now.