30 lines
983 B
Rust
30 lines
983 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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// Test that we can quantify lifetimes outside a constraint (i.e., including
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// the self type) in a where clause. Specifically, test that we cannot nest
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// quantification in constraints (to be clear, there is no reason this should not
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// we're testing we don't crash or do something stupid).
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trait Bar<'a> {
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fn bar(&self);
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}
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impl<'a, 'b> Bar<'b> for &'a u32 {
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fn bar(&self) {}
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}
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fn foo<T>(x: &T)
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where for<'a> &'a T: for<'b> Bar<'b>
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//~^ error: nested quantification of lifetimes
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{}
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fn main() {}
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