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Deprecate E0706

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This commit is contained in:
Michael Goulet 2023-09-13 20:09:05 +00:00
parent 59315b8a63
commit ef04c9795b
4 changed files with 6 additions and 32 deletions
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6
compiler/rustc_error_codes/src/error_codes/E0706.md
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@ -1,8 +1,10 @@
#### Note: this error code is no longer emitted by the compiler.
`async fn`s are not yet supported in traits in Rust.
Erroneous code example:
```compile_fail,edition2018
```ignore,edition2018
trait T {
// Neither case is currently supported.
async fn foo() {}
@ -13,7 +15,7 @@ trait T {
`async fn`s return an `impl Future`, making the following two examples
equivalent:
```edition2018,ignore (example-of-desugaring-equivalence)
```ignore,edition2018 (example-of-desugaring-equivalence)
async fn foo() -> User {
unimplemented!()
}