[nongnu] elpa/rust-mode 85befb9 296/486: Merge pull request #201 from tromey/question-indentation

[ELPA Syncer]

branch: elpa/rust-mode
commit 85befb942a11c76caf2b7889ed79453fd4512198
Merge: 4d651ab f269c5e
Author: Niko Matsakis <niko@alum.mit.edu>
Commit: GitHub <noreply@github.com>

    Merge pull request #201 from tromey/question-indentation
    
    fix syntax of "<" appearing after "?"
---
 rust-mode-tests.el | 7 +++++++
 rust-mode.el       | 3 +++
 2 files changed, 10 insertions(+)

diff --git a/rust-mode-tests.el b/rust-mode-tests.el
index 9c9a4d6..98230de 100644
--- a/rust-mode-tests.el
+++ b/rust-mode-tests.el
@@ -1868,6 +1868,13 @@ 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
diff --git a/rust-mode.el b/rust-mode.el
index 5b53277..2307cc0 100644
--- a/rust-mode.el
+++ b/rust-mode.el
@@ -866,6 +866,9 @@ the desired identifiers), but does not match type 
annotations \"foo::<\"."
        ((rust-looking-back-symbols rust-mode-keywords)
         (rust-looking-back-symbols '("self" "true" "false")))
 
+       ((rust-looking-back-str "?")
+       (rust-is-in-expression-context 'ambiguous-operator))
+
        ;; If we're looking back at an identifier, this depends on whether
        ;; the identifier is part of an expression or a type
        ((rust-looking-back-ident)