bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Rollup merge of #134949 - compiler-errors:froms, r=jieyouxu

Browse source 
Convert some `Into` impls into `From` impls

From the [`From`](https://doc.rust-lang.org/std/convert/trait.From.html) docs:

> One should always prefer implementing `From` over [`Into`](https://doc.rust-lang.org/std/convert/trait.Into.html) because implementing `From` automatically provides one with an implementation of [`Into`](https://doc.rust-lang.org/std/convert/trait.Into.html) thanks to the blanket implementation in the standard library.
>
> Only implement [`Into`](https://doc.rust-lang.org/std/convert/trait.Into.html) when targeting a version prior to Rust 1.41 and converting to a type outside the current crate. `From` was not able to do these types of conversions in earlier versions because of Rust’s orphaning rules. See [Into](https://doc.rust-lang.org/std/convert/trait.Into.html) for more details.

Some of these impls are likely from before 1.41, and then some others were probably just mistakes. Building nightly rust is definitely not supported on 1.41, so let's modernize these impls :D
This commit is contained in:
Stuart Cook 2024-12-31 14:12:49 +11:00 • committed by GitHub
commit 2491edab30
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
9 changed files with 45 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

12
compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs
View file

@ -45,12 +45,12 @@ pub enum TypeAnnotationNeeded {
E0284,
}
impl Into<ErrCode> for TypeAnnotationNeeded {
fn into(self) -> ErrCode {
match self {
Self::E0282 => E0282,
Self::E0283 => E0283,
Self::E0284 => E0284,
impl From<TypeAnnotationNeeded> for ErrCode {
fn from(val: TypeAnnotationNeeded) -> Self {
match val {
TypeAnnotationNeeded::E0282 => E0282,
TypeAnnotationNeeded::E0283 => E0283,
TypeAnnotationNeeded::E0284 => E0284,
}
}
}