(provide 'cce/lsp-base)Language Server Protocol is a semi-standard protocol for IDEs and tools to be able to reason about code without having to implement direct support for that language. The complexity of language integration is handled in a server (usually written in the same language) which exposes smart information and functionality to work with the code.
What this means for me is that there is always a basic amount of
support that can be implied – there are packages which integrate Emacs better with a language than LSP, perhaps,
but that is also perhaps not necessary. I work through programming
philosophy of arbitrary languages in their own pages, and focus here
instead on configuring lsp-mode and company-mode
(use-package lsp-mode
:config
(setq lsp-file-watch-threshold nil)
(add-to-list 'company-backends 'company-capf))
(use-package lsp-ui
:config
(setq lsp-ui-doc-enable nil))With lsp-mode installed, language
support pages can just add lsp-mode to
their programming language's mode-hook to enable it. It'll try to
connect to the language server or start one, and then present
functionality. I present that functionality to myself with hydra-lsp:
(defhydra hydra-lsp (:exit t :hint nil)
"
Buffer^^ Server^^ Symbol
-------------------------------------------------------------------------------------
[_f_] format [_M-r_] restart [_d_] declaration [_i_] implementation [_o_] documentation
[_m_] imenu [_S_] shutdown [_D_] definition [_t_] type [_r_] rename
[_x_] execute action [_M-s_] describe session [_R_] references [_s_] signature [_e_] flycheck"
("d" lsp-find-declaration)
("D" lsp-ui-peek-find-definitions)
("R" lsp-ui-peek-find-references)
("i" lsp-ui-peek-find-implementation)
("t" lsp-find-type-definition)
("s" lsp-signature-help)
("o" lsp-describe-thing-at-point)
("r" lsp-rename)
("e" lsp-ui-flycheck-list)
("f" lsp-format-buffer)
("m" lsp-ui-imenu)
("x" lsp-execute-code-action)
("M-s" lsp-describe-session)
("M-r" lsp-restart-workspace)
("S" lsp-shutdown-workspace))
(add-hook 'lsp-mode-hook (lambda ()
(evil-local-set-key 'normal (kbd "<SPC>l") #'hydra-lsp/body)))and so in languages which support lsp-mode, I can hit <SPC>ld to jump to the declaration of a
the function my point is underneath. useful stuff.