1 files changed, 33 insertions, 0 deletions
diff --git a/src/test/ui/lint/lint-impl-fn.rs b/src/test/ui/lint/lint-impl-fn.rs
new file mode 100644
index 000000000..46874d95c
--- /dev/null
+++ b/src/test/ui/lint/lint-impl-fn.rs
@@ -0,0 +1,33 @@
+#![allow(while_true)]
+#![allow(dead_code)]
+
+struct A(isize);
+
+impl A {
+    fn foo(&self) { while true {} }
+
+    #[deny(while_true)]
+    fn bar(&self) { while true {} } //~ ERROR: infinite loops
+}
+
+#[deny(while_true)]
+mod foo {
+    struct B(isize);
+
+    impl B {
+        fn foo(&self) { while true {} } //~ ERROR: infinite loops
+
+        #[allow(while_true)]
+        fn bar(&self) { while true {} }
+    }
+}
+
+#[deny(while_true)]
+fn main() {
+    while true {} //~ ERROR: infinite loops
+}
+
+#[deny(while_true)]
+fn bar() {
+    while cfg!(unix) {} // no error
+}