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| author | bors[bot] <26634292+bors[bot]@users.noreply.github.com> | 2019-08-12 20:43:57 +0100 |
|---|---|---|
| committer | bors[bot] <26634292+bors[bot]@users.noreply.github.com> | 2019-08-12 20:43:57 +0100 |
| commit | 2c65a059840dd2092a00e90337a8221cd832c456 (patch) | |
| tree | fa1f8c46158271eb859928ed9da3eb389f861c09 /crates/ra_hir/src/ty/method_resolution.rs | |
| parent | 0cf48e48d75d267bfa38ff1319e7f7c0468fb53f (diff) | |
| parent | 5af9691dc9132db61b50c4e90cdeda6fea0c5dd9 (diff) | |
Merge #1677
1677: Associated types r=flodiebold a=flodiebold
This implements basic support for (fully qualified) associated type projections:
- handle fully qualified paths like `<T as Trait>::AssocType` (basically desugaring to something like `Trait<Self=T>::AssocType`)
- lower these to a new `Ty::Projection` enum variant
- also introduce `Ty::UnselectedProjection` for cases like `T::AssocType` where the trait from which the type comes isn't specified, but these aren't handled further so far
- in inference, normalize these projections using Chalk: basically, when encountering a type e.g. from a type annotation or signature, we replace these `Ty::Projection`s by type variables and add obligations to normalize the associated type
Co-authored-by: Florian Diebold <[email protected]>
Diffstat (limited to 'crates/ra_hir/src/ty/method_resolution.rs')
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