#![feature(negative_impls)]

// aux-build: foreign_trait.rs

// Test that we cannot implement `LocalTrait` for `String`,
// even though there is a `String: !ForeignTrait` impl.
//
// This may not be the behavior we want long term, but it's the
// current semantics that we implemented so as to land `!Foo` impls
// quickly. See internals thread:
//
// https://internals.rust-lang.org/t/foo/11587/

extern crate foreign_trait;
use foreign_trait::ForeignTrait;

trait LocalTrait { }
impl<T: ForeignTrait> LocalTrait for T { }
impl LocalTrait for String { } //~ ERROR conflicting implementations

fn main() { }