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I have been using rtags as my primary C++ mode, but I found that it's performance is not satisfying for large code bases e.g. Linux kernel.

It takes more than 5 seconds to find definitions. This it not so bad, but I heard that cquery provides better performance.

So I installed cquery and set up my .el file:

(use-package lsp-mode)

(use-package lsp-ui :commands lsp-ui-mode)
(use-package company-lsp :commands company-lsp)

(use-package cquery
  :config
  (setq cquery-executable "/path/to/cquery"))

I followed the steps introduced in the documentation, namely:

  1. Prepare compile_commands.json (I used bear)
  2. Open file
  3. Run lsp by M-x lsp

At this point, I get error message, saying:

error in process filter: Symbol’s value as variable is void: method

and the status bar halts at LSP[cquery:18565 status:starting]

Am I missing any steps?

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  • Try enabling traceback though M-x toggle-debug-on-error and post the results. The error message implies that you don't have variable named method. I think, it comes from eioei package, but I could be wrong. I'd need to see the actual source to be sure. – wvxvw Mar 10 '19 at 13:33
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This is caused by a bug in dash 2.14.1, where the &hash statement in -let bindings is broken.

Update to dash 2.15.0 for a fix.

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