49 lines
1.3 KiB
Rust
49 lines
1.3 KiB
Rust
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// Copyright 2014 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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// Test that we can parse all the various places that a `for` keyword
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// can appear representing universal quantification.
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#![allow(unused_variables)]
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#![allow(dead_code)]
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trait Get<A,R> {
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fn get(&self, arg: A) -> R;
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}
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// Parse HRTB with explicit `for` in a where-clause:
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fn foo00<T>(t: T)
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where T : for<'a> Get<&'a int, &'a int>
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{
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}
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fn foo01<T: for<'a> Get<&'a int, &'a int>>(t: T)
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{
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}
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// Parse HRTB with explicit `for` in various sorts of types:
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fn foo10(t: Box<for<'a> Get<int, int>>) { }
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fn foo11(t: Box<for<'a> Get(int) -> int>) { }
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fn foo20(t: for<'a> fn(int) -> int) { }
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fn foo21(t: for<'a> unsafe fn(int) -> int) { }
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fn foo22(t: for<'a> extern "C" fn(int) -> int) { }
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fn foo23(t: for<'a> unsafe extern "C" fn(int) -> int) { }
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fn foo30(t: for<'a> |int| -> int) { }
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fn foo31(t: for<'a> unsafe |int| -> int) { }
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//fn foo40(t: for<'a> proc(int) -> int) { }
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fn main() {
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}
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