40 lines
961 B
Rust
40 lines
961 B
Rust
// 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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// Check that we get an error in a multidisptach scenario where the
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// set of impls is ambiguous.
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trait Convert<Target> {
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fn convert(&self) -> Target;
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}
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impl Convert<i8> for i32 {
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fn convert(&self) -> i8 {
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*self as i8
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}
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}
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impl Convert<i16> for i32 {
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fn convert(&self) -> i16 {
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*self as i16
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}
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}
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fn test<T,U>(_: T, _: U)
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where T : Convert<U>
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{
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}
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fn a() {
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test(22, std::default::Default::default()); //~ ERROR type annotations required
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}
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fn main() {}
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