rust/src/test/run-pass/extern-pass-TwoU64s.rs
Patrick Walton e9ad12c0ca librustc: Forbid private types in public APIs.
This breaks code like:

    struct Foo {
        ...
    }

    pub fn make_foo() -> Foo {
        ...
    }

Change this code to:

    pub struct Foo {    // note `pub`
        ...
    }

    pub fn make_foo() -> Foo {
        ...
    }

The `visible_private_types` lint has been removed, since it is now an
error to attempt to expose a private type in a public API. In its place
a `#[feature(visible_private_types)]` gate has been added.

Closes #16463.

RFC #48.

[breaking-change]
2014-09-22 20:05:45 -07:00

31 lines
899 B
Rust

// Copyright 2012-2014 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.
// Test a foreign function that accepts and returns a struct
// by value.
#[deriving(PartialEq, Show)]
pub struct TwoU64s {
one: u64, two: u64
}
#[link(name = "rust_test_helpers")]
extern {
pub fn rust_dbg_extern_identity_TwoU64s(v: TwoU64s) -> TwoU64s;
}
pub fn main() {
unsafe {
let x = TwoU64s {one: 22, two: 23};
let y = rust_dbg_extern_identity_TwoU64s(x);
assert_eq!(x, y);
}
}