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4d503b0c
编写于
8月 01, 2017
作者:
M
Masaki Hara
提交者:
Niko Matsakis
9月 05, 2017
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差异文件
Add downstream tests for intercrate ambiguity hints.
上级
d153ff3f
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2
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2 changed file
with
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and
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+64
-0
src/test/compile-fail/coherence-overlap-downstream-inherent.rs
...est/compile-fail/coherence-overlap-downstream-inherent.rs
+32
-0
src/test/compile-fail/coherence-overlap-downstream.rs
src/test/compile-fail/coherence-overlap-downstream.rs
+32
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src/test/compile-fail/coherence-overlap-downstream-inherent.rs
0 → 100644
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4d503b0c
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Tests that we consider `T: Sugar + Fruit` to be ambiguous, even
// though no impls are found.
struct
Sweet
<
X
>
(
X
);
pub
trait
Sugar
{}
pub
trait
Fruit
{}
impl
<
T
:
Sugar
>
Sweet
<
T
>
{
fn
dummy
(
&
self
)
{
}
}
//~^ ERROR E0592
//~| NOTE duplicate definitions for `dummy`
impl
<
T
:
Fruit
>
Sweet
<
T
>
{
fn
dummy
(
&
self
)
{
}
}
//~^ NOTE other definition for `dummy`
trait
Bar
<
X
>
{}
struct
A
<
T
,
X
>
(
T
,
X
);
impl
<
X
,
T
>
A
<
T
,
X
>
where
T
:
Bar
<
X
>
{
fn
f
(
&
self
)
{}
}
//~^ ERROR E0592
//~| NOTE duplicate definitions for `f`
//~| NOTE downstream crates may implement trait `Bar<_>` for type `i32`
impl
<
X
>
A
<
i32
,
X
>
{
fn
f
(
&
self
)
{}
}
//~^ NOTE other definition for `f`
fn
main
()
{}
src/test/compile-fail/coherence-overlap-downstream.rs
0 → 100644
浏览文件 @
4d503b0c
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Tests that we consider `T: Sugar + Fruit` to be ambiguous, even
// though no impls are found.
pub
trait
Sugar
{}
pub
trait
Fruit
{}
pub
trait
Sweet
{}
impl
<
T
:
Sugar
>
Sweet
for
T
{
}
//~^ NOTE first implementation here
impl
<
T
:
Fruit
>
Sweet
for
T
{
}
//~^ ERROR E0119
//~| NOTE conflicting implementation
pub
trait
Foo
<
X
>
{}
pub
trait
Bar
<
X
>
{}
impl
<
X
,
T
>
Foo
<
X
>
for
T
where
T
:
Bar
<
X
>
{}
//~^ NOTE first implementation here
impl
<
X
>
Foo
<
X
>
for
i32
{}
//~^ ERROR E0119
//~| NOTE conflicting implementation for `i32`
//~| NOTE downstream crates may implement trait `Bar<_>` for type `i32`
fn
main
()
{
}
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