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Suggestion to wrap inner types using allocator_api in tuple

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Ken Matsui 2021-11-13 16:39:54 +09:00
parent e90c5fbbc5
commit 57494f7c75
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GPG key ID: 103360B3298EE433
5 changed files with 113 additions and 8 deletions
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9
src/test/ui/stability-attribute/suggest-vec-allocator-api.rs Normal file
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@ -0,0 +1,9 @@
fn main() {
let _: Vec<u8, _> = vec![]; //~ ERROR use of unstable library feature 'allocator_api'
#[rustfmt::skip]
let _: Vec<
String,
_> = vec![]; //~ ERROR use of unstable library feature 'allocator_api'
let _ = Vec::<u16, _>::new(); //~ ERROR use of unstable library feature 'allocator_api'
let _boxed: Box<u32, _> = Box::new(10); //~ ERROR use of unstable library feature 'allocator_api'
}

49
src/test/ui/stability-attribute/suggest-vec-allocator-api.stderr Normal file
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error[E0658]: use of unstable library feature 'allocator_api'
--> $DIR/suggest-vec-allocator-api.rs:2:20
|
LL | let _: Vec<u8, _> = vec![];
| ----^
| |
| help: consider wrapping the inner types in tuple: `(u8, _)`
|
= note: see issue #32838 <https://github.com/rust-lang/rust/issues/32838> for more information
= help: add `#![feature(allocator_api)]` to the crate attributes to enable
error[E0658]: use of unstable library feature 'allocator_api'
--> $DIR/suggest-vec-allocator-api.rs:6:9
|
LL | _> = vec![];
| ^
|
= note: see issue #32838 <https://github.com/rust-lang/rust/issues/32838> for more information
= help: add `#![feature(allocator_api)]` to the crate attributes to enable
help: consider wrapping the inner types in tuple
|
LL ~ let _: Vec<(
LL + String,
LL ~ _)> = vec![];
|
error[E0658]: use of unstable library feature 'allocator_api'
--> $DIR/suggest-vec-allocator-api.rs:8:26
|
LL | let _boxed: Box<u32, _> = Box::new(10);
| ^
|
= note: see issue #32838 <https://github.com/rust-lang/rust/issues/32838> for more information
= help: add `#![feature(allocator_api)]` to the crate attributes to enable
error[E0658]: use of unstable library feature 'allocator_api'
--> $DIR/suggest-vec-allocator-api.rs:7:24
|
LL | let _ = Vec::<u16, _>::new();
| -----^
| |
| help: consider wrapping the inner types in tuple: `(u16, _)`
|
= note: see issue #32838 <https://github.com/rust-lang/rust/issues/32838> for more information
= help: add `#![feature(allocator_api)]` to the crate attributes to enable
error: aborting due to 4 previous errors
For more information about this error, try `rustc --explain E0658`.