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| author | Niko Matsakis <niko@alum.mit.edu> | 2016-07-26 10:20:21 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2016-07-26 10:20:21 -0400 |
| commit | ba5ff9058546df593ff7d8737fb52b5e92ad1913 (patch) | |
| tree | e9fbe5b165748dcb439b980ffece433891e4c1fb | |
| parent | b3b0f780b1872951874b2ed05eb476ef6e980c09 (diff) | |
| parent | cffb950f2063184c23512c7b9305e3244e2cb47c (diff) | |
| download | rust-mode-ba5ff9058546df593ff7d8737fb52b5e92ad1913.tar.gz | |
Merge pull request #159 from hotpxl/master
[master] Copy buffer only when format changes.
| -rw-r--r-- | rust-mode.el | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/rust-mode.el b/rust-mode.el index 164c95b..6259b48 100644 --- a/rust-mode.el +++ b/rust-mode.el @@ -1258,8 +1258,10 @@ This is written mainly to be used as `end-of-defun-function' for Rust." (erase-buffer) (insert-buffer-substring buf) (if (zerop (call-process-region (point-min) (point-max) rust-rustfmt-bin t t nil)) - (progn (copy-to-buffer buf (point-min) (point-max)) - (kill-buffer)) + (progn + (if (not (string= (buffer-string) (with-current-buffer buf (buffer-string)))) + (copy-to-buffer buf (point-min) (point-max))) + (kill-buffer)) (error "Rustfmt failed, see *rustfmt* buffer for details")))) (defun rust-format-buffer () |