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auto merge of #8800 : fhahn/rust/ticket_5239, r=alexcrichton

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I've added a test for the second example mentioned in #5239. The first example does not compile with a reasonable error message. Should I add a compile-fail test for that example as well?

    /rust/src/test/run-pass/issue-5239.rs:15:45: 15:51 error: binary operation + cannot be applied to type `&int`
    rust/src/test/run-pass/issue-5239.rs:15     let _f = |ref x: int| { x += 1};
                                                                                         ^~~~~~

    error: aborting due to previous error
This commit is contained in:
bors 2013-08-28 20:30:36 -07:00
commit 89d04009c1
2 changed files with 32 additions and 0 deletions
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15
src/test/compile-fail/issue-5239-1.rs Normal file
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// Copyright 2013 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 issue #5239
fn main() {
let x: &fn(int) -> int = |ref x| { x += 1; }; //~ ERROR binary operation + cannot be applied to type `&int`
}

17
src/test/run-pass/issue-5239-2.rs Normal file
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// Copyright 2013 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 issue #5239
fn main() {
let _f: &fn(int) -> int = |ref x: int| { *x };
let foo = 10;
assert!(_f(foo) == 10);
}