42 lines
1.4 KiB
Rust
42 lines
1.4 KiB
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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// ignore-tidy-linelength
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#![feature(on_unimplemented)]
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#![allow(unused)]
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#[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}`"]
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trait Foo<Bar, Baz, Quux>
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{}
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#[rustc_on_unimplemented="a collection of type `{Self}` cannot be built from an iterator over elements of type `{A}`"]
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trait MyFromIterator<A> {
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/// Build a container with elements from an external iterator.
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fn my_from_iter<T: Iterator<Item=A>>(iterator: T) -> Self;
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}
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#[rustc_on_unimplemented] //~ ERROR this attribute must have a value
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trait BadAnnotation1
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{}
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#[rustc_on_unimplemented = "Unimplemented trait error on `{Self}` with params `<{A},{B},{C}>`"]
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//~^ ERROR there is no type parameter C on trait BadAnnotation2
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trait BadAnnotation2<A,B>
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{}
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#[rustc_on_unimplemented = "Unimplemented trait error on `{Self}` with params `<{A},{B},{}>`"]
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//~^ only named substitution parameters are allowed
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trait BadAnnotation3<A,B>
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{}
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pub fn main() {
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}
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