dtolnay / dtolnay/syn

Parse heterogeneous try-block syntax

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syntax
Dominant language
Rust
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Description

- https://github.com/rust-lang/rust/issues/149488

Example: https://github.com/rust-lang/rust/blob/d39561c2d2b55985d3b6331cc52403e038e7fc8b/src/tools/rustfmt/tests/source/try_blocks_heterogeneous.rs#L5

```rust
let _x = try bikeshed Option<_> {
```

Contributor guide

No contributing guide indexed for this repository

Research direction

Start with the Rust issue and the referenced rustfmt fixture at src/tools/rustfmt/tests/source/try_blocks_heterogeneous.rs, especially the heterogeneous try-block example. Trace how syn parses this syntax and add coverage for the shown form; done means the example parses successfully.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
compilers
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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