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体验新版 GitCode,发现更多精彩内容 >>
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2a20073c
编写于
5月 15, 2017
作者:
M
Masaki Hara
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电子邮件补丁
差异文件
Prohibit parenthesized params in bounds etc.
上级
63ecd6aa
变更
4
隐藏空白更改
内联
并排
Showing
4 changed file
with
54 addition
and
1 deletion
+54
-1
src/librustc_typeck/astconv.rs
src/librustc_typeck/astconv.rs
+11
-0
src/librustc_typeck/check/mod.rs
src/librustc_typeck/check/mod.rs
+2
-1
src/test/compile-fail/issue-32995-2.rs
src/test/compile-fail/issue-32995-2.rs
+25
-0
src/test/compile-fail/issue-32995.rs
src/test/compile-fail/issue-32995.rs
+16
-0
未找到文件。
src/librustc_typeck/astconv.rs
浏览文件 @
2a20073c
...
...
@@ -372,6 +372,8 @@ pub fn instantiate_mono_trait_ref(&self,
self_ty
:
Ty
<
'tcx
>
)
->
ty
::
TraitRef
<
'tcx
>
{
self
.prohibit_type_params
(
trait_ref
.path.segments
.split_last
()
.unwrap
()
.1
);
let
trait_def_id
=
self
.trait_def_id
(
trait_ref
);
self
.ast_path_to_mono_trait_ref
(
trait_ref
.path.span
,
trait_def_id
,
...
...
@@ -404,6 +406,8 @@ pub fn instantiate_poly_trait_ref(&self,
debug!
(
"ast_path_to_poly_trait_ref({:?}, def_id={:?})"
,
trait_ref
,
trait_def_id
);
self
.prohibit_type_params
(
trait_ref
.path.segments
.split_last
()
.unwrap
()
.1
);
let
(
substs
,
assoc_bindings
)
=
self
.create_substs_for_ast_trait_ref
(
trait_ref
.path.span
,
trait_def_id
,
...
...
@@ -625,6 +629,13 @@ fn conv_object_ty_poly_trait_ref(&self,
dummy_self
,
&
mut
projection_bounds
);
for
trait_bound
in
trait_bounds
[
1
..
]
.iter
()
{
// Sanity check for non-principal trait bounds
self
.instantiate_poly_trait_ref
(
trait_bound
,
dummy_self
,
&
mut
vec!
[]);
}
let
(
auto_traits
,
trait_bounds
)
=
split_auto_traits
(
tcx
,
&
trait_bounds
[
1
..
]);
if
!
trait_bounds
.is_empty
()
{
...
...
src/librustc_typeck/check/mod.rs
浏览文件 @
2a20073c
...
...
@@ -4495,7 +4495,8 @@ fn check_path_parameter_count(&self,
(
&
data
.lifetimes
[
..
],
&
data
.types
[
..
],
data
.infer_types
,
&
data
.bindings
[
..
])
}
Some
(
&
hir
::
ParenthesizedParameters
(
_
))
=>
{
span_bug!
(
span
,
"parenthesized parameters cannot appear in ExprPath"
);
AstConv
::
prohibit_parenthesized_params
(
self
,
&
segment
.as_ref
()
.unwrap
()
.0
);
(
&
[][
..
],
&
[][
..
],
true
,
&
[][
..
])
}
None
=>
(
&
[][
..
],
&
[][
..
],
true
,
&
[][
..
])
}
...
...
src/test/compile-fail/issue-32995-2.rs
0 → 100644
浏览文件 @
2a20073c
// 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.
#![feature(conservative_impl_trait)]
fn
main
()
{
{
fn
f
<
X
:
::
std
::
marker
()::
Send
>
()
{}
}
//~^ ERROR parenthesized parameters may only be used with a trait
{
fn
f
()
->
impl
::
std
::
marker
()::
Send
{
}
}
//~^ ERROR parenthesized parameters may only be used with a trait
}
#[derive(Clone)]
struct
X
;
impl
::
std
::
marker
()::
Copy
for
X
{}
//~^ ERROR parenthesized parameters may only be used with a trait
src/test/compile-fail/issue-32995.rs
浏览文件 @
2a20073c
...
...
@@ -17,6 +17,22 @@ fn main() {
let
b
:
::
std
::
boxed
()::
Box
<
_
>
=
Box
::
new
(
1
);
//~^ ERROR parenthesized parameters may only be used with a trait
macro_rules!
pathexpr
{
(
$p:path
)
=>
{
$p
}
}
let
p
=
pathexpr!
(::
std
::
str
()::
from_utf8
)(
b
"foo"
)
.unwrap
();
//~^ ERROR parenthesized parameters may only be used with a trait
let
p
=
pathexpr!
(::
std
::
str
::
from_utf8
())(
b
"foo"
)
.unwrap
();
//~^ ERROR parenthesized parameters may only be used with a trait
let
o
:
Box
<
::
std
::
marker
()::
Send
>
=
Box
::
new
(
1
);
//~^ ERROR parenthesized parameters may only be used with a trait
let
o
:
Box
<
Send
+
::
std
::
marker
()::
Sync
>
=
Box
::
new
(
1
);
//~^ ERROR parenthesized parameters may only be used with a trait
}
fn
foo
<
X
:
Default
>
()
{
...
...
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