diff options
Diffstat (limited to 'src/test/run-pass')
| -rw-r--r-- | src/test/run-pass/issue-32008.rs | 35 | ||||
| -rw-r--r-- | src/test/run-pass/issue-45425.rs | 20 |
2 files changed, 55 insertions, 0 deletions
diff --git a/src/test/run-pass/issue-32008.rs b/src/test/run-pass/issue-32008.rs new file mode 100644 index 00000000000..cb489acf1d9 --- /dev/null +++ b/src/test/run-pass/issue-32008.rs @@ -0,0 +1,35 @@ +// 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 <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. + +// Tests that binary operators allow subtyping on both the LHS and RHS, +// and as such do not introduce unnecesarily strict lifetime constraints. + +use std::ops::Add; + +struct Foo; + +impl<'a> Add<&'a Foo> for &'a Foo { + type Output = (); + fn add(self, rhs: &'a Foo) {} +} + +fn try_to_add(input: &Foo) { + let local = Foo; + + // Manual reborrow worked even with invariant trait search. + &*input + &local; + + // Direct use of the reference on the LHS requires additional + // subtyping before searching (invariantly) for `LHS: Add<RHS>`. + input + &local; +} + +fn main() { +} diff --git a/src/test/run-pass/issue-45425.rs b/src/test/run-pass/issue-45425.rs new file mode 100644 index 00000000000..06ffa6b3dea --- /dev/null +++ b/src/test/run-pass/issue-45425.rs @@ -0,0 +1,20 @@ +// 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 <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. + +use std::ops::Add; + +fn ref_add<T>(a: &T, b: &T) -> T +where + for<'x> &'x T: Add<&'x T, Output = T>, +{ + a + b +} + +fn main() {} |
