src/test/run-pass/issue-3860.rs


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// 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.

// xfail-test
struct Foo { x: int }

impl Foo {
    fn stuff(&mut self) -> &self/mut Foo {
        return self;
    }
}

fn main() {
    let mut x = @mut Foo { x: 3 };
    x.stuff(); // error: internal compiler error: no enclosing scope with id 49
    // storing the result removes the error, so replacing the above
    // with the following, works:
    // let _y = x.stuff()

    // also making 'stuff()' not return anything fixes it
    // I guess the "dangling &ptr" cuases issues?
}