blob: 92c71392672e197537c6a72525b9059a31c19852 (
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
|
error[E0277]: the size for values of type `(dyn Foo + 'static)` cannot be known at compilation time
--> $DIR/feature-gate-unsized_fn_params.rs:17:8
|
LL | fn foo(x: dyn Foo) {
| ^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `(dyn Foo + 'static)`
= help: unsized fn params are gated as an unstable feature
help: you can use `impl Trait` as the argument type
|
LL | fn foo(x: impl Foo) {
| ~~~~
help: function arguments must have a statically known size, borrowed types always have a known size
|
LL | fn foo(x: &dyn Foo) {
| +
error[E0277]: the size for values of type `(dyn Foo + 'static)` cannot be known at compilation time
--> $DIR/feature-gate-unsized_fn_params.rs:21:8
|
LL | fn bar(x: Foo) {
| ^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `(dyn Foo + 'static)`
= help: unsized fn params are gated as an unstable feature
help: you can use `impl Trait` as the argument type
|
LL | fn bar(x: impl Foo) {
| ++++
help: function arguments must have a statically known size, borrowed types always have a known size
|
LL | fn bar(x: &Foo) {
| +
error[E0277]: the size for values of type `[()]` cannot be known at compilation time
--> $DIR/feature-gate-unsized_fn_params.rs:25:8
|
LL | fn qux(_: [()]) {}
| ^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `[()]`
= help: unsized fn params are gated as an unstable feature
help: function arguments must have a statically known size, borrowed types always have a known size
|
LL | fn qux(_: &[()]) {}
| +
error[E0277]: the size for values of type `(dyn Foo + 'static)` cannot be known at compilation time
--> $DIR/feature-gate-unsized_fn_params.rs:29:9
|
LL | foo(*x);
| ^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `(dyn Foo + 'static)`
= note: all function arguments must have a statically known size
= help: unsized fn params are gated as an unstable feature
error: aborting due to 4 previous errors
For more information about this error, try `rustc --explain E0277`.
|
