[nongnu] elpa/rust-mode f17e11a 162/486: Match panics during build as compilation warnings

[ELPA Syncer]

branch: elpa/rust-mode
commit f17e11ac890bcc8b91cf79e9b4dda66d5d9b97d6
Author: Kristoffer Grönlund <krig@koru.se>
Commit: Kristoffer Grönlund <krig@koru.se>

    Match panics during build as compilation warnings
    
    Enables using `cargo test` as the compilation command in emacs, and
    adds test failures as compilation warnings.
---
 rust-mode.el | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/rust-mode.el b/rust-mode.el
index 948cc0e..d15dee4 100644
--- a/rust-mode.el
+++ b/rust-mode.el
@@ -752,11 +752,21 @@ This is written mainly to be used as 
`end-of-defun-function' for Rust."
   "Specifications for matching errors in rustc invocations.
 See `compilation-error-regexp-alist for help on their format.")
 
+;; Match test run failures and panics during compilation as
+;; compilation warnings
+(defvar cargo-compilation-regexps
+  '("^\\s-+thread '[^']+' panicked at \\('[^']+', \\([^:]+\\):\\([0-9]+\\)\\)" 
2 3 nil nil 1)
+  "Specifications for matching panics in cargo test invocations.
+See `compilation-error-regexp-alist for help on their format.")
+
 (eval-after-load 'compile
   '(progn
      (add-to-list 'compilation-error-regexp-alist-alist
                   (cons 'rustc rustc-compilation-regexps))
-     (add-to-list 'compilation-error-regexp-alist 'rustc)))
+     (add-to-list 'compilation-error-regexp-alist 'rustc)
+     (add-to-list 'compilation-error-regexp-alist-alist
+                  (cons 'cargo cargo-compilation-regexps))
+     (add-to-list 'compilation-error-regexp-alist 'cargo)))
 
 ;;; Functions to submit (parts of) buffers to the rust playpen, for
 ;;; sharing.