75 lines
2.6 KiB
EmacsLisp
75 lines
2.6 KiB
EmacsLisp
;;; lsp-flycheck.el --- Flycheck support for lsp-mode -*- lexical-binding: t; -*-
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;; Copyright (C) 2017 fmdkdd
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;; This program is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Put this in your config file:
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;;
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;; (with-eval-after-load 'lsp-mode
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;; (require 'lsp-flycheck))
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;;; Code:
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(require 'lsp-notifications)
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(require 'lsp-mode)
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(require 'flycheck)
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(require 'pcase)
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(defun lsp--flycheck-start (checker callback)
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"Start an LSP syntax check with CHECKER.
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CALLBACK is the status callback passed by Flycheck."
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;; Turn all errors from lsp--diagnostics into flycheck-error objects and pass
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;; them immediately to the callback
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(let ((errors))
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(maphash (lambda (file diagnostics)
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(dolist (diag diagnostics)
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(push (flycheck-error-new
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:buffer (current-buffer)
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:checker checker
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:filename file
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:line (1+ (lsp-diagnostic-line diag))
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:column (1+ (lsp-diagnostic-column diag))
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:message (lsp-diagnostic-message diag)
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:level (pcase (lsp-diagnostic-severity diag)
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(1 'error)
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(2 'warning)
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(_ 'info))
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:id (lsp-diagnostic-code diag))
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errors)))
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lsp--diagnostics)
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(funcall callback 'finished errors)))
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(flycheck-define-generic-checker 'lsp
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"A syntax checker using the Language Server Protocol (RLS)
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provided by lsp-mode.
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See https://github.com/emacs-lsp/lsp-mode."
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:start #'lsp--flycheck-start
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:modes '(rust-mode go-mode python-mode haskell-mode) ; Need a default mode
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:predicate (lambda () lsp-mode)
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:error-explainer #'lsp-error-explainer)
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(defun lsp-flycheck-add-mode (mode)
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"Add MODE as a valid major-mode for the lsp checker."
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(unless (flycheck-checker-supports-major-mode-p 'lsp mode)
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(flycheck-add-mode 'lsp mode)))
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(provide 'lsp-flycheck)
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;;; lsp-flycheck ends here
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