1 files changed, 38 insertions, 0 deletions
diff --git a/vendor/derivative/tests/rustc-issue-24085.rs b/vendor/derivative/tests/rustc-issue-24085.rs
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+++ b/vendor/derivative/tests/rustc-issue-24085.rs
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+// 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.
+
+// Regression test for #24085. Errors were occurring in region
+// inference due to the requirement that `'a:b'`, which was getting
+// incorrectly translated in connection with the closure below.
+
+#![allow(clippy::redundant_closure)]
+
+#[cfg(feature = "use_core")]
+extern crate core;
+
+#[macro_use]
+extern crate derivative;
+
+#[derive(Derivative)]
+#[derivative(Copy,Clone)]
+#[allow(dead_code)]
+struct Path<'a:'b, 'b> {
+    x: &'a i32,
+    tail: Option<&'b Path<'a, 'b>>
+}
+
+#[allow(dead_code, unconditional_recursion)]
+fn foo<'a,'b,F>(p: Path<'a, 'b>, mut f: F)
+                where F: for<'c> FnMut(Path<'a, 'c>) {
+    foo(p, |x| f(x))
+}
+
+#[test]
+fn main() { }