rust/compiler/rustc_hir_analysis
bors b3bd7058c1 Auto merge of #121346 - m-ou-se:temp-lifetime-if-else-match, r=compiler-errors
Propagate temporary lifetime extension into if and match.

This PR makes this work:

```rust
let a = if true {
    ..;
    &temp() // used to error, but now gets lifetime extended
} else {
    ..;
    &temp() // used to error, but now gets lifetime extended
};
```

and

```rust
let a = match () {
    _ => {
        ..;
        &temp() // used to error, but now gets lifetime extended
    }
};
```

to make it consistent with:

```rust
let a = {
    ..;
    &temp() // lifetime is extended
};
```

This is one small part of [the temporary lifetimes work](https://github.com/rust-lang/lang-team/issues/253).

This part is backwards compatible (so doesn't need be edition-gated), because all code affected by this change previously resulted in a hard error.
2024-04-10 18:52:51 +00:00
..
src Auto merge of #121346 - m-ou-se:temp-lifetime-if-else-match, r=compiler-errors 2024-04-10 18:52:51 +00:00
Cargo.toml bump itertools to 0.12 2024-03-08 12:34:05 +03:00
messages.ftl Move check to wfcheck 2024-04-09 12:17:34 -04:00
README.md rustc_typeck to rustc_hir_analysis 2022-09-27 10:37:23 +02:00

For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.