Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/ui/lint/unused_parens_json_suggestion.rs b/tests/ui/lint/unused_parens_json_suggestion.rs
new file mode 100644
index 000000000..962c8bdd7
--- /dev/null
+++ b/tests/ui/lint/unused_parens_json_suggestion.rs
@@ -0,0 +1,26 @@
+// compile-flags: --error-format json
+// run-rustfix
+
+// The output for humans should just highlight the whole span without showing
+// the suggested replacement, but we also want to test that suggested
+// replacement only removes one set of parentheses, rather than naïvely
+// stripping away any starting or ending parenthesis characters—hence this
+// test of the JSON error format.
+
+#![deny(unused_parens)]
+#![allow(unreachable_code)]
+
+fn main() {
+    // We want to suggest the properly-balanced expression `1 / (2 + 3)`, not
+    // the malformed `1 / (2 + 3`
+    let _a = (1 / (2 + 3)); //~ERROR unnecessary parentheses
+    f();
+}
+
+fn f() -> bool {
+    loop {
+        if (break { return true }) {
+        }
+    }
+    false
+}