Re: A combination of defmacro, functionp, and quoted lambdas yields different results on consecutive evaluations

[Clément Pit-Claudel]

On 2018-02-27 16:35, Stefan Monnier wrote:
> I was about to suggest that you might ask the Flycheck maintainer to
> provide a function that can be used instead of the macro
> flycheck-define-checker, but I see that it's pretty much already the
> case: just use flycheck-define-command-checker.

Oh, the Flycheck maintainers is already well aware of the issue: there are two 
of them, and one of them is me :)
That function is semi-internal: we don't want people to have to use it.

> Another option, is to compile that file and then you can do
> 
>     (eval-when-compile (require 'flycheck))
>     (with-eval-after-load 'flycheck
>       (flycheck-define-checker
>         …))
> 
> it also works if you don't byte-compile, except that the
> with-eval-after-load becomes ineffective.

What do you mean by ineffective? It would just run immediately because the form 
above loads Flycheck when interpreted, right?

Clément.