Suggest inline const blocks for array initialization · rust-lang/rust@ba5ec1f
@@ -2,45 +2,36 @@ error[E0277]: the trait bound `String: Copy` is not satisfied
22 --> $DIR/const-fn-in-vec.rs:1:47
33 |
44LL | static _MAYBE_STRINGS: [Option<String>; 5] = [None; 5];
5- | ^^^^ the trait `Copy` is not implemented for `String`, which is required by `Option<String>: Copy`
5+ | ^^^^
6+ | |
7+ | the trait `Copy` is not implemented for `String`, which is required by `Option<String>: Copy`
8+ | help: create an inline `const` block: `const { None }`
69 |
710 = note: required for `Option<String>` to implement `Copy`
811 = note: the `Copy` trait is required because this value will be copied for each element of the array
9- = help: create an inline `const` block, see RFC #2920 <https://github.com/rust-lang/rfcs/pull/2920> for more information
10-help: consider creating a new `const` item and initializing it with the result of the constructor to be used in the repeat position
11- |
12-LL + const ARRAY_REPEAT_VALUE: Option<String> = None;
13-LL ~ static _MAYBE_STRINGS: [Option<String>; 5] = [ARRAY_REPEAT_VALUE; 5];
14- |
15121613error[E0277]: the trait bound `String: Copy` is not satisfied
1714 --> $DIR/const-fn-in-vec.rs:7:34
1815 |
1916LL | let _strings: [String; 5] = [String::new(); 5];
20- | ^^^^^^^^^^^^^ the trait `Copy` is not implemented for `String`
17+ | ^^^^^^^^^^^^^
18+ | |
19+ | the trait `Copy` is not implemented for `String`
20+ | help: create an inline `const` block: `const { String::new() }`
2121 |
2222 = note: the `Copy` trait is required because this value will be copied for each element of the array
23- = help: create an inline `const` block, see RFC #2920 <https://github.com/rust-lang/rfcs/pull/2920> for more information
24-help: consider creating a new `const` item and initializing it with the result of the function call to be used in the repeat position
25- |
26-LL ~ const ARRAY_REPEAT_VALUE: String = String::new();
27-LL ~ let _strings: [String; 5] = [ARRAY_REPEAT_VALUE; 5];
28- |
29233024error[E0277]: the trait bound `String: Copy` is not satisfied
3125 --> $DIR/const-fn-in-vec.rs:9:48
3226 |
3327LL | let _maybe_strings: [Option<String>; 5] = [None; 5];
34- | ^^^^ the trait `Copy` is not implemented for `String`, which is required by `Option<String>: Copy`
28+ | ^^^^
29+ | |
30+ | the trait `Copy` is not implemented for `String`, which is required by `Option<String>: Copy`
31+ | help: create an inline `const` block: `const { None }`
3532 |
3633 = note: required for `Option<String>` to implement `Copy`
3734 = note: the `Copy` trait is required because this value will be copied for each element of the array
38- = help: create an inline `const` block, see RFC #2920 <https://github.com/rust-lang/rfcs/pull/2920> for more information
39-help: consider creating a new `const` item and initializing it with the result of the constructor to be used in the repeat position
40- |
41-LL ~ const ARRAY_REPEAT_VALUE: Option<String> = None;
42-LL ~ let _maybe_strings: [Option<String>; 5] = [ARRAY_REPEAT_VALUE; 5];
43- |
44354536error: aborting due to 3 previous errors
4637