| // 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. |
| |
| // pretty-expanded FIXME #23616 |
| |
| #![feature(libc)] |
| |
| extern crate libc; |
| use std::mem; |
| |
| struct arena(()); |
| |
| struct Bcx<'a> { |
| fcx: &'a Fcx<'a> |
| } |
| |
| struct Fcx<'a> { |
| arena: &'a arena, |
| ccx: &'a Ccx |
| } |
| |
| struct Ccx { |
| x: isize |
| } |
| |
| fn alloc<'a>(_bcx : &'a arena) -> &'a Bcx<'a> { |
| unsafe { |
| mem::transmute(libc::malloc(mem::size_of::<Bcx<'a>>() |
| as libc::size_t)) |
| } |
| } |
| |
| fn h<'a>(bcx : &'a Bcx<'a>) -> &'a Bcx<'a> { |
| return alloc(bcx.fcx.arena); |
| } |
| |
| fn g(fcx : &Fcx) { |
| let bcx = Bcx { fcx: fcx }; |
| let bcx2 = h(&bcx); |
| unsafe { |
| libc::free(mem::transmute(bcx2)); |
| } |
| } |
| |
| fn f(ccx : &Ccx) { |
| let a = arena(()); |
| let fcx = Fcx { arena: &a, ccx: ccx }; |
| return g(&fcx); |
| } |
| |
| pub fn main() { |
| let ccx = Ccx { x: 0 }; |
| f(&ccx); |
| } |