27 lines
1002 B
Rust
27 lines
1002 B
Rust
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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Regression test: issue had to do with "givens" in region inference,
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// which were not being considered during the contraction phase.
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struct Parser<'i: 't, 't>(&'i u8, &'t u8);
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impl<'i, 't> Parser<'i, 't> {
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fn parse_nested_block<F, T>(&mut self, parse: F) -> Result<T, ()>
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where for<'tt> F: FnOnce(&mut Parser<'i, 'tt>) -> T { panic!() }
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fn expect_exhausted(&mut self) -> Result<(), ()> { Ok(()) }
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}
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fn main() {
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let x = 0u8;
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Parser(&x, &x).parse_nested_block(|input| input.expect_exhausted()).unwrap();
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}
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