fix syntax of "<" appearing after "?"

The "<" syntax-setting code could be confused after a "?".  This patch
changes the code to treat "?" as an "ambiguous operator" and adjust
according to further context.
Fixes #200

1 files changed, 7 insertions, 0 deletions

diff --git a/rust-mode-tests.el b/rust-mode-tests.el
index f7c2a91..dc561e1 100644
--- a/rust-mode-tests.el
+++ b/rust-mode-tests.el
@@ -1891,6 +1891,13 @@ fn main() {
 "))
     (test-indent text text)))
 
+(ert-deftest indent-question-mark-operator ()
+  (test-indent "fn foo() {
+    if bar()? < 1 {
+    }
+    baz();
+}"))
+
 (defun rust-test-matching-parens (content pairs &optional nonparen-positions)
   "Assert that in rust-mode, given a buffer with the given `content',
   emacs's paren matching will find all of the pairs of positions