---

yaml
---
r: 235761
b: refs/heads/stable
c: 37aad77
h: refs/heads/master
i:
  235759: e3e483e
v: v3

Author: nikomatsakis

[refs]

@@ -29,7 +29,7 @@ refs/heads/tmp: afae2ff723393b3ab4ccffef6ac7c6d1809e2da0
 refs/tags/1.0.0-alpha.2: 4c705f6bc559886632d3871b04f58aab093bfa2f
 refs/tags/homu-tmp: f859507de8c410b648d934d8f5ec1c52daac971d
 refs/tags/1.0.0-beta: 8cbb92b53468ee2b0c2d3eeb8567005953d40828
-refs/heads/stable: 7ba288dced2d47c53a826d7f46ac6e07a37e187e
+refs/heads/stable: 37aad77ce25229454d796bc85894ae0826ac937a
 refs/tags/1.0.0: 55bd4f8ff2b323f317ae89e254ce87162d52a375
 refs/tags/1.1.0: bc3c16f09287e5545c1d3f76b7abd54f2eca868b
 refs/tags/1.2.0: f557861f822c34f07270347b94b5280de20a597e

branches/stable/src/test/compile-fail/closure-referencing-itself-issue-25954.rs

@@ -0,0 +1,28 @@
+// Copyright 2012 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 #25954: detect and reject a closure type that
+// references itself.
+
+use std::cell::{Cell, RefCell};
+
+struct A<T: Fn()> {
+    x: RefCell<Option<T>>,
+    b: Cell<i32>,
+}
+
+fn main() {
+    let mut p = A{x: RefCell::new(None), b: Cell::new(4i32)};
+
+    // This is an error about types of infinite size:
+    let q = || p.b.set(5i32); //~ ERROR mismatched types
+
+    *(p.x.borrow_mut()) = Some(q);
+}