// Copyright 2016 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #![feature(rustc_attrs)] #![allow(dead_code)] trait RegularExpression: Sized { type Text; } struct ExecNoSyncStr<'a>(&'a u8); impl<'c> RegularExpression for ExecNoSyncStr<'c> { type Text = u8; } struct FindCaptures<'t, R>(&'t R::Text) where R: RegularExpression, R::Text: 't; enum FindCapturesInner<'r, 't> { Dynamic(FindCaptures<'t, ExecNoSyncStr<'r>>), } #[rustc_error] fn main() {} //~ ERROR compilation successful