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34407dcd
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34407dcd
编写于
6月 07, 2014
作者:
J
Jakub Wieczorek
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Provide a witness pattern for non-exhaustive patterns
Fixed #4321
上级
f5e513b2
变更
7
展开全部
隐藏空白更改
内联
并排
Showing
7 changed file
with
486 addition
and
536 deletion
+486
-536
src/librustc/middle/check_match.rs
src/librustc/middle/check_match.rs
+453
-521
src/test/compile-fail/issue-2111.rs
src/test/compile-fail/issue-2111.rs
+2
-1
src/test/compile-fail/issue-4321.rs
src/test/compile-fail/issue-4321.rs
+18
-0
src/test/compile-fail/non-exhaustive-match-nested.rs
src/test/compile-fail/non-exhaustive-match-nested.rs
+1
-2
src/test/compile-fail/non-exhaustive-match.rs
src/test/compile-fail/non-exhaustive-match.rs
+8
-9
src/test/compile-fail/refutable-pattern-errors.rs
src/test/compile-fail/refutable-pattern-errors.rs
+2
-2
src/test/compile-fail/refutable-pattern-in-fn-arg.rs
src/test/compile-fail/refutable-pattern-in-fn-arg.rs
+2
-1
未找到文件。
src/librustc/middle/check_match.rs
浏览文件 @
34407dcd
此差异已折叠。
点击以展开。
src/test/compile-fail/issue-2111.rs
浏览文件 @
34407dcd
...
...
@@ -9,7 +9,8 @@
// except according to those terms.
fn
foo
(
a
:
Option
<
uint
>
,
b
:
Option
<
uint
>
)
{
match
(
a
,
b
)
{
//~ ERROR: non-exhaustive patterns: None not covered
match
(
a
,
b
)
{
//~^ ERROR: non-exhaustive patterns: (core::option::None, core::option::None) not covered
(
Some
(
a
),
Some
(
b
))
if
a
==
b
=>
{
}
(
Some
(
_
),
None
)
|
(
None
,
Some
(
_
))
=>
{
}
...
...
src/test/compile-fail/issue-4321.rs
0 → 100644
浏览文件 @
34407dcd
// Copyright 2014 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
tup
=
(
true
,
true
);
println!
(
"foo {:}"
,
match
tup
{
//~ ERROR non-exhaustive patterns: (true, false) not covered
(
false
,
false
)
=>
"foo"
,
(
false
,
true
)
=>
"bar"
,
(
true
,
true
)
=>
"baz"
});
}
src/test/compile-fail/non-exhaustive-match-nested.rs
浏览文件 @
34407dcd
...
...
@@ -8,13 +8,12 @@
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// error-pattern: non-exhaustive patterns
enum
t
{
a
(
u
),
b
}
enum
u
{
c
,
d
}
fn
main
()
{
let
x
=
a
(
c
);
match
x
{
match
x
{
//~ ERROR non-exhaustive patterns: a(c) not covered
a
(
d
)
=>
{
fail
!
(
"hello"
);
}
b
=>
{
fail
!
(
"goodbye"
);
}
}
...
...
src/test/compile-fail/non-exhaustive-match.rs
浏览文件 @
34407dcd
...
...
@@ -12,21 +12,21 @@ enum t { a, b, }
fn
main
()
{
let
x
=
a
;
match
x
{
b
=>
{
}
}
//~ ERROR non-exhaustive patterns
match
true
{
//~ ERROR non-exhaustive patterns
match
x
{
b
=>
{
}
}
//~ ERROR non-exhaustive patterns
: a not covered
match
true
{
//~ ERROR non-exhaustive patterns
: false not covered
true
=>
{}
}
match
Some
(
10
)
{
//~ ERROR non-exhaustive patterns
match
Some
(
10
)
{
//~ ERROR non-exhaustive patterns
: core::option::Some(_) not covered
None
=>
{}
}
match
(
2
,
3
,
4
)
{
//~ ERROR non-exhaustive patterns
match
(
2
,
3
,
4
)
{
//~ ERROR non-exhaustive patterns
: (_, _, _) not covered
(
_
,
_
,
4
)
=>
{}
}
match
(
a
,
a
)
{
//~ ERROR non-exhaustive patterns
match
(
a
,
a
)
{
//~ ERROR non-exhaustive patterns
: (a, a) not covered
(
a
,
b
)
=>
{}
(
b
,
a
)
=>
{}
}
match
a
{
//~ ERROR b not covered
match
a
{
//~ ERROR
non-exhaustive patterns:
b not covered
a
=>
{}
}
// This is exhaustive, though the algorithm got it wrong at one point
...
...
@@ -37,8 +37,7 @@ fn main() {
}
let
vec
=
vec!
(
Some
(
42
),
None
,
Some
(
21
));
let
vec
:
&
[
Option
<
int
>
]
=
vec
.as_slice
();
match
vec
{
//~^ ERROR non-exhaustive patterns: vectors of length 0 not covered
match
vec
{
//~ ERROR non-exhaustive patterns: [] not covered
[
Some
(
..
),
None
,
..
tail
]
=>
{}
[
Some
(
..
),
Some
(
..
),
..
tail
]
=>
{}
[
None
]
=>
{}
...
...
@@ -51,7 +50,7 @@ fn main() {
}
let
vec
=
vec!
(
0.5
);
let
vec
:
&
[
f32
]
=
vec
.as_slice
();
match
vec
{
//~ ERROR non-exhaustive patterns:
vectors of length 4
not covered
match
vec
{
//~ ERROR non-exhaustive patterns:
[_, _, _, _]
not covered
[
0.1
,
0.2
,
0.3
]
=>
(),
[
0.1
,
0.2
]
=>
(),
[
0.1
]
=>
(),
...
...
src/test/compile-fail/refutable-pattern-errors.rs
浏览文件 @
34407dcd
...
...
@@ -10,9 +10,9 @@
fn
func
((
1
,
(
Some
(
1
),
2
..
3
)):
(
int
,
(
Option
<
int
>
,
int
)))
{
}
//~^ ERROR refutable pattern in function argument
//~^ ERROR refutable pattern in function argument
: (_, _) not covered
fn
main
()
{
let
(
1
,
(
Some
(
1
),
2
..
3
))
=
(
1
,
(
None
,
2
));
//~^ ERROR refutable pattern in local binding
//~^ ERROR refutable pattern in local binding
: (_, _) not covered
}
src/test/compile-fail/refutable-pattern-in-fn-arg.rs
浏览文件 @
34407dcd
...
...
@@ -9,6 +9,7 @@
// except according to those terms.
fn
main
()
{
let
f
=
|
3
:
int
|
println!
(
"hello"
);
//~ ERROR refutable pattern
let
f
=
|
3
:
int
|
println!
(
"hello"
);
//~^ ERROR refutable pattern in function argument: _ not covered
f
(
4
);
}
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