rust/crates/syntax
bors[bot] 8f504dc873
Merge #11598
11598: feat: Parse destructuring assignment r=Veykril a=ChayimFriedman2

Part of #11532.

Lowering is not as easy and may not even be feasible right now as it requires generating identifiers: `(a, b) = (b, a)` is desugared into
```rust
{
    let (<gensym_a>, <gensym_b>) = (b, a);
    a = <gensym_a>;
    b = <gensym_b>;
}
```

rustc uses hygiene to implement that, but we don't support hygiene yet.

However, I think parsing was the main problem as lowering will just affect type inference, and while `{unknown}` is not nice it's much better than a syntax error.

I'm still looking for the best way to do lowering, though.

Fixes #11454.

Co-authored-by: Chayim Refael Friedman <chayimfr@gmail.com>
2022-03-05 11:31:29 +00:00
..
fuzz Bump MSRV (1.57) 2021-12-16 01:56:12 +05:00
src Merge #11598 2022-03-05 11:31:29 +00:00
test_data Validate let expressions 2022-02-21 08:34:35 +02:00
Cargo.toml Parse destructuring assignment 2022-03-02 01:51:25 +00:00