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Merge #1453

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1453: Add show syntax tree function to emacs r=matklad a=zbelial

This PR adds preliminary support for showing syntax tree.

Co-authored-by: zbelial <zjytj@qq.com>
This commit is contained in:
bors[bot] 2019-06-29 07:06:17 +00:00
commit 0e1912de52
1 changed files with 26 additions and 0 deletions
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26
editors/emacs/ra-emacs-lsp.el
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@ -204,5 +204,31 @@
"rust-analyzer/analyzerStatus"))))))) "rust-analyzer/analyzerStatus")))))))
(defun rust-analyzer--syntax-tree-params ()
"Syntax tree params."
(list :textDocument (lsp--text-document-identifier)
:range (if (use-region-p)
(lsp--region-to-range (region-beginning) (region-end))
(lsp--region-to-range (point-min) (point-max)))))
(defun rust-analyzer-syntax-tree ()
"Displays syntax tree for current buffer."
(interactive)
(when (eq 'rust-mode major-mode)
(let* ((workspace (lsp-find-workspace 'rust-analyzer (buffer-file-name)))
(buf (get-buffer-create (concat "*rust-analyzer syntax tree " (with-lsp-workspace workspace (lsp-workspace-root)) "*"))))
(when workspace
(let ((parse-result (with-lsp-workspace workspace
(lsp-send-request (lsp-make-request
"rust-analyzer/syntaxTree"
(rust-analyzer--syntax-tree-params))))))
(with-current-buffer buf
(let ((inhibit-read-only t))
(erase-buffer)
(insert parse-result))
)
(pop-to-buffer buf))))))
(provide 'ra-emacs-lsp) (provide 'ra-emacs-lsp)
;;; ra-emacs-lsp.el ends here ;;; ra-emacs-lsp.el ends here