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Add regression test for issue #18804

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Signed-off-by: Gabriel Smith <ga29smith@gmail.com>
This commit is contained in:
Gabriel Smith 2018-07-22 20:33:04 -04:00
parent 487e961c6a
commit e8bc064c5e
2 changed files with 40 additions and 0 deletions
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src/test/run-pass/issue-18804/auxiliary/lib.rs Normal file
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// Copyright 2018 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.
#![crate_type = "rlib"]
#![feature(linkage)]
pub fn foo<T>() -> *const() {
extern {
#[linkage = "extern_weak"]
static FOO: *const();
}
unsafe { FOO }
}

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src/test/run-pass/issue-18804/main.rs Normal file
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// Copyright 2018 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 for issue #18804, #[linkage] does not propagate thorugh generic
// functions. Failure results in a linker error.
// aux-build:lib.rs
extern crate lib;
fn main() {
lib::foo::<i32>();
}