// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // Issue #2263. #[allow(dead_assignment)]; #[allow(unused_variable)]; // Should pass region checking. fn ok(f: |x: &uint|) { // Here, g is a function that can accept a uint pointer with // lifetime r, and f is a function that can accept a uint pointer // with any lifetime. The assignment g = f should be OK (i.e., // f's type should be a subtype of g's type), because f can be // used in any context that expects g's type. But this currently // fails. let mut g: <'r>|y: &'r uint| = |x| { }; g = f; } // This version is the same as above, except that here, g's type is // inferred. fn ok_inferred(f: |x: &uint|) { let mut g: <'r>|x: &'r uint| = |_| {}; g = f; } pub fn main() { }