rust/src/test/compile-fail/block-coerce-no.rs
2012-12-10 17:32:58 -08:00

27 lines
890 B
Rust

// 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.
// Make sure that fn-to-block coercion isn't incorrectly lifted over
// other tycons.
fn coerce(b: fn()) -> extern fn() {
fn lol(+f: extern fn(+v: fn()) -> extern fn(),
+g: fn()) -> extern fn() { return f(g); }
fn fn_id(+f: extern fn()) -> extern fn() { return f }
return lol(fn_id, b);
//~^ ERROR mismatched types
}
fn main() {
let i = 8;
let f = coerce(|| log(error, i) );
f();
}