// Copyright 2017 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. // Ensure that capturing closures are never coerced to fns // Especially interesting as non-capturing closures can be. fn main() { let mut a = 0u8; let foo: fn(u8) -> u8 = |v: u8| { a += v; a }; //~^ ERROR mismatched types let b = 0u8; let bar: fn() -> u8 = || { b }; //~^ ERROR mismatched types let baz: fn() -> u8 = || { b } as fn() -> u8; //~^ ERROR mismatched types //~^^ ERROR non-scalar cast }