Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 41 insertions, 0 deletions

diff --git a/tests/ui/lint/dead-code/lint-dead-code-2.rs b/tests/ui/lint/dead-code/lint-dead-code-2.rs
new file mode 100644
index 000000000..6bfa4d96f
--- /dev/null
+++ b/tests/ui/lint/dead-code/lint-dead-code-2.rs
@@ -0,0 +1,41 @@
+#![allow(unused_variables)]
+#![deny(dead_code)]
+#![feature(rustc_attrs, start)]
+
+struct Foo;
+
+trait Bar {
+    fn bar1(&self);
+    fn bar2(&self) {
+        self.bar1();
+    }
+}
+
+impl Bar for Foo {
+    fn bar1(&self) {
+        live_fn();
+    }
+}
+
+fn live_fn() {}
+
+fn dead_fn() {} //~ ERROR: function `dead_fn` is never used
+
+#[rustc_main]
+fn dead_fn2() {} //~ ERROR: function `dead_fn2` is never used
+
+fn used_fn() {}
+
+#[start]
+fn start(_: isize, _: *const *const u8) -> isize {
+    used_fn();
+    let foo = Foo;
+    foo.bar2();
+    0
+}
+
+// this is not main
+fn main() { //~ ERROR: function `main` is never used
+    dead_fn();
+    dead_fn2();
+}