lsp-flycheck is rust specific

[mattiasb]

I'm trying out lsp-mode with PyLS and activated lsp-flycheck with lsp-flycheck-setup but it failed since it wanted to run with the Rust checker.

See these lines for why.

[vibhavp]

This line seems to be the primary culprit. I'll make the code independent of language mode, thanks.

[mattiasb]

Not really. That whole sexp defines a flycheck-checker for rust-mode, so I believe it's actually just L62 that is wrong.

From C-h v flycheck-checker:

Documentation:
Syntax checker to use for the current buffer.

If unset or nil, automatically select a suitable syntax checker
from ‘flycheck-checkers’ on every syntax check.

If set to a syntax checker only use this syntax checker and never
select one from ‘flycheck-checkers’ automatically.  The syntax
checker is used regardless of whether it is contained in
‘flycheck-checkers’ or ‘flycheck-disabled-checkers’.  If the
syntax checker is unusable in the current buffer an error is
signaled.

[mattiasb]

Perhaps @fmdkdd could fill us in here?

[fmdkdd]

Ah yes, sorry for that. I only tested it with Rust. I've just pushed a PR to fix that, but beware I did not test it. Let me know if that works for you.