| // Copyright 2015 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. |
| |
| // Regression test: issue had to do with "givens" in region inference, |
| // which were not being considered during the contraction phase. |
| |
| // error-pattern:explicit panic |
| |
| struct Parser<'i: 't, 't>(&'i u8, &'t u8); |
| |
| impl<'i, 't> Parser<'i, 't> { |
| fn parse_nested_block<F, T>(&mut self, parse: F) -> Result<T, ()> |
| where for<'tt> F: FnOnce(&mut Parser<'i, 'tt>) -> T |
| { |
| panic!() |
| } |
| |
| fn expect_exhausted(&mut self) -> Result<(), ()> { |
| Ok(()) |
| } |
| } |
| |
| fn main() { |
| let x = 0u8; |
| Parser(&x, &x).parse_nested_block(|input| input.expect_exhausted()).unwrap(); |
| } |
