rustc_typeck: Allow reification from fn item to unsafe ptr

1 files changed, 21 insertions, 0 deletions

diff --git a/src/test/run-pass/typeck-fn-to-unsafe-fn-ptr.rs b/src/test/run-pass/typeck-fn-to-unsafe-fn-ptr.rs
new file mode 100644
index 00000000000..323705f3f95
--- /dev/null
+++ b/src/test/run-pass/typeck-fn-to-unsafe-fn-ptr.rs
@@ -0,0 +1,21 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// This tests reification from safe function to `unsafe fn` pointer
+
+fn do_nothing() -> () {}
+
+unsafe fn call_unsafe(func: unsafe fn() -> ()) -> () {
+    func()
+}
+
+pub fn main() {
+    unsafe { call_unsafe(do_nothing); }
+}