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体验新版 GitCode,发现更多精彩内容 >>
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63ecd6aa
编写于
5月 09, 2017
作者:
M
Masaki Hara
浏览文件
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浏览文件
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电子邮件补丁
差异文件
Prohibit parenthesized params in more types.
上级
bedd7da3
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
39 addition
and
4 deletion
+39
-4
src/librustc_typeck/astconv.rs
src/librustc_typeck/astconv.rs
+14
-4
src/test/compile-fail/issue-32995.rs
src/test/compile-fail/issue-32995.rs
+25
-0
未找到文件。
src/librustc_typeck/astconv.rs
浏览文件 @
63ecd6aa
...
...
@@ -161,10 +161,7 @@ pub fn ast_path_substs_for_ty(&self,
match
item_segment
.parameters
{
hir
::
AngleBracketedParameters
(
_
)
=>
{}
hir
::
ParenthesizedParameters
(
..
)
=>
{
struct_span_err!
(
tcx
.sess
,
span
,
E0214
,
"parenthesized parameters may only be used with a trait"
)
.span_label
(
span
,
"only traits may use parentheses"
)
.emit
();
self
.prohibit_parenthesized_params
(
item_segment
);
return
Substs
::
for_item
(
tcx
,
def_id
,
|
_
,
_
|
{
tcx
.types.re_static
...
...
@@ -948,6 +945,10 @@ fn qpath_to_ty(&self,
pub
fn
prohibit_type_params
(
&
self
,
segments
:
&
[
hir
::
PathSegment
])
{
for
segment
in
segments
{
if
let
hir
::
ParenthesizedParameters
(
_
)
=
segment
.parameters
{
self
.prohibit_parenthesized_params
(
segment
);
break
;
}
for
typ
in
segment
.parameters
.types
()
{
struct_span_err!
(
self
.tcx
()
.sess
,
typ
.span
,
E0109
,
"type parameters are not allowed on this type"
)
...
...
@@ -970,6 +971,15 @@ pub fn prohibit_type_params(&self, segments: &[hir::PathSegment]) {
}
}
pub
fn
prohibit_parenthesized_params
(
&
self
,
segment
:
&
hir
::
PathSegment
)
{
if
let
hir
::
ParenthesizedParameters
(
ref
data
)
=
segment
.parameters
{
struct_span_err!
(
self
.tcx
()
.sess
,
data
.span
,
E0214
,
"parenthesized parameters may only be used with a trait"
)
.span_label
(
data
.span
,
"only traits may use parentheses"
)
.emit
();
}
}
pub
fn
prohibit_projection
(
&
self
,
span
:
Span
)
{
let
mut
err
=
struct_span_err!
(
self
.tcx
()
.sess
,
span
,
E0229
,
"associated type bindings are not allowed here"
);
...
...
src/test/compile-fail/issue-32995.rs
0 → 100644
浏览文件 @
63ecd6aa
// 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.
fn
main
()
{
let
s
:
String
()
=
String
::
from
(
"foo"
);
//~^ ERROR parenthesized parameters may only be used with a trait
let
x
:
usize
()
=
1
;
//~^ ERROR parenthesized parameters may only be used with a trait
let
b
:
::
std
::
boxed
()::
Box
<
_
>
=
Box
::
new
(
1
);
//~^ ERROR parenthesized parameters may only be used with a trait
}
fn
foo
<
X
:
Default
>
()
{
let
d
:
X
()
=
Default
::
default
();
//~^ ERROR parenthesized parameters may only be used with a trait
}
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