34 lines
986 B
Rust
34 lines
986 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 implementing for a
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// specific lifetime is not enough to satisify the `for<'a> ...` constraint, which
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// should require *all* lifetimes.
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static X: &'static u32 = &42;
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trait Bar {
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fn bar(&self);
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}
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impl Bar for &'static 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: Bar
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{}
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fn main() {
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foo(&X);
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//~^ error: `for<'a> Bar` is not implemented
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}
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