33 lines
820 B
Rust
33 lines
820 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 for Issue #20971.
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pub trait Parser {
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type Input;
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fn parse(&mut self, input: <Self as Parser>::Input);
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}
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impl Parser for () {
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type Input = ();
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fn parse(&mut self, input: ()) {
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}
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}
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pub fn many() -> Box<Parser<Input=<() as Parser>::Input> + 'static> {
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panic!()
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}
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fn main() {
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many()
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.parse(());
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}
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