mirror of https://github.com/rust-lang/rust
22 lines
567 B
Rust
22 lines
567 B
Rust
//! Check that we don't break orphan rules.
|
|
//! The dependency may add an impl for `u8` later,
|
|
//! which would break this crate. We want to avoid adding
|
|
//! more ways in which adding an impl can be a breaking change.
|
|
//! This test differs from `trivial_impl3` because there actually
|
|
//! exists any impl for `Trait`, which has an effect on coherence.
|
|
|
|
//@ aux-build:trivial4.rs
|
|
|
|
extern crate trivial4;
|
|
|
|
pub trait Foo {
|
|
fn foo()
|
|
where
|
|
Self: trivial4::Trait;
|
|
}
|
|
|
|
impl Foo for u8 {}
|
|
//~^ ERROR not all trait items implemented, missing: `foo`
|
|
|
|
fn main() {}
|