Question regarding flycheck-define-generic-checker callback function

[Sarcasm]

Hello,

First thank you, this package, it looks great!

I'm working on implementing a checker for irony-mode.

In irony-mode I will have the syntax errors are available either immediately or asynchronously.

I'm wondering if it is safe for the start function of flycheck-define-generic-checker to call the status-callback immediately?

In my code I will probably have something along the lines of:

(if (diagnostics-already-available-p)
  (funcall callback 'finished diagnostics)
 (async-diagnostics callback))

[swsnr]

It is, as of #533.

[Sarcasm]

Thank you, pardon my lack of search, I actually stumbled upon this issue a few days ago.

IMHO looking at the flycheck-define-generic-checker it is not totally obvious.

[swsnr]

@Sarcasm Looking at the implementation or the docstring?

[Sarcasm]

A quick look at the implementation gave me the idea that it would be safe.

Looking at http://www.flycheck.org/en/latest/dev/api.html#el.function.flycheck-define-generic-checker I couldn't find something that would confirm this.

Since I prefer not to rely on implementation details I preferred to ask for confirmation. :)

[swsnr]

@Sarcasm I see. I added a little paragraph to the docstring to clarify this. Please tell me what you think.

[Sarcasm]

LGTM! :+1: