Unable to use ccls as backend

[fuzzycode]

The function ccls--is-ccls-buffer has been removed in this commit. This causes the ccls backend to be reported as inactive and only the fallback solution will be used.

[matthuszagh]

I'm also unable to use flycheck-clang-analyzer with ccls.

[alexmurray]

@matthuszagh what version if emacs-ccls and flycheck-clang-analyzer are you using? This issue (as originally reported by @fuzzycode) was fixed a few months ago with https://github.com/alexmurray/flycheck-clang-analyzer/commit/2775a63456c1c8c9a94ae28ebad230c6e23027da

[matthuszagh]

I'm using

flycheck-clang-analyzer: 20190724.542 emacs-ccls: 20190720.935

In case it's useful, my setup is

(use-package flycheck-clang-analyzer
     :after flycheck
     :config
     (flycheck-clang-analyzer-setup))

[alexmurray]

Thanks - can you provide any more details on why you think it isn't working? What does M-x flycheck-verify-setup show? As a simple test if you paste the following into a file (say /tmp/test.c)

#include <stdlib.h>

int main() {
        char *p = malloc(100);
}

It should show two warnings detected by flycheck-clang-analyzer - (M-x flycheck-list-errors):

 test.c     4  15 warning         Value stored to 'p' during its initialization is never read (clang-analyzer)
 test.c     5   1 warning         Potential leak of memory pointed to by 'p' (clang-analyzer)

[matthuszagh]

Nevermind, this does indeed work. I'm not entirely sure what the issue was, but deleting the ccls cache and restarting worked. Sorry for the false alarm and thanks for the help!

[alexmurray]

No worries.