blob: 9322e617176a1f10e98f448d58cab829d3aa8488 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
error: lifetime may not live long enough
--> $DIR/issue-79187-2.rs:11:24
|
LL | take_foo(|a: &i32| a);
| - - ^ returning this value requires that `'1` must outlive `'2`
| | |
| | return type of closure is &'2 i32
| let's call the lifetime of this reference `'1`
error: lifetime may not live long enough
--> $DIR/issue-79187-2.rs:14:34
|
LL | take_foo(|a: &i32| -> &i32 { a });
| - - ^ returning this value requires that `'1` must outlive `'2`
| | |
| | let's call the lifetime of this reference `'2`
| let's call the lifetime of this reference `'1`
error: implementation of `FnOnce` is not general enough
--> $DIR/issue-79187-2.rs:8:5
|
LL | take_foo(|a| a);
| ^^^^^^^^^^^^^^^ implementation of `FnOnce` is not general enough
|
= note: closure with signature `fn(&'2 i32) -> &i32` must implement `FnOnce<(&'1 i32,)>`, for any lifetime `'1`...
= note: ...but it actually implements `FnOnce<(&'2 i32,)>`, for some specific lifetime `'2`
error[E0308]: mismatched types
--> $DIR/issue-79187-2.rs:8:5
|
LL | take_foo(|a| a);
| ^^^^^^^^^^^^^^^ one type is more general than the other
|
= note: expected trait `for<'r> Fn<(&'r i32,)>`
found trait `Fn<(&i32,)>`
note: this closure does not fulfill the lifetime requirements
--> $DIR/issue-79187-2.rs:8:14
|
LL | take_foo(|a| a);
| ^^^
note: the lifetime requirement is introduced here
--> $DIR/issue-79187-2.rs:5:21
|
LL | fn take_foo(_: impl Foo) {}
| ^^^
error[E0308]: mismatched types
--> $DIR/issue-79187-2.rs:11:5
|
LL | take_foo(|a: &i32| a);
| ^^^^^^^^^^^^^^^^^^^^^ one type is more general than the other
|
= note: expected reference `&i32`
found reference `&i32`
note: the lifetime requirement is introduced here
--> $DIR/issue-79187-2.rs:5:21
|
LL | fn take_foo(_: impl Foo) {}
| ^^^
error[E0308]: mismatched types
--> $DIR/issue-79187-2.rs:14:5
|
LL | take_foo(|a: &i32| -> &i32 { a });
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ one type is more general than the other
|
= note: expected reference `&i32`
found reference `&i32`
note: the lifetime requirement is introduced here
--> $DIR/issue-79187-2.rs:5:21
|
LL | fn take_foo(_: impl Foo) {}
| ^^^
error: aborting due to 6 previous errors
For more information about this error, try `rustc --explain E0308`.
|
