6a66b32270
Refactor compare_impl_method into its own file. Modify the code to stop comparing individual parameter bounds. Instead we now use the predicates list attached to the trait and implementation generics. This ensures consistency even when bounds are declared in different places (i.e on a parameter vs. in a where clause).
28 lines
780 B
Rust
28 lines
780 B
Rust
// Copyright 2012 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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// Tests that an impl method's bounds aren't *more* restrictive
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// than the trait method it's implementing
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trait A {
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fn b<C,D>(x: C) -> C;
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}
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struct E {
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f: isize
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}
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impl A for E {
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fn b<F: Sync, G>(_x: F) -> F { panic!() }
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//~^ ERROR `F : core::marker::Sync` appears on the impl method
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}
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fn main() {}
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