) -> Option<Const<'tcx>> {
let span = source_info.span;
match *rvalue {
- // This branch exists for the sanity type check
- Rvalue::Use(Operand::Constant(ref c)) => {
- assert_eq!(c.ty, place_layout.ty);
- self.eval_constant(c, source_info)
- },
Rvalue::Use(ref op) => {
self.eval_operand(op, source_info)
},
--- /dev/null
+// Copyright 2018 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.
+
+// compile-pass
+
+macro_rules! m {
+ () => {{
+ fn f(_: impl Sized) {}
+ f
+ }}
+}
+
+fn main() {
+ fn f() -> impl Sized {};
+ m!()(f());
+}
\ No newline at end of file