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| author | bors[bot] <26634292+bors[bot]@users.noreply.github.com> | 2020-02-22 12:31:30 +0000 |
|---|---|---|
| committer | GitHub <[email protected]> | 2020-02-22 12:31:30 +0000 |
| commit | 2cbe8a4c4be2a69b27c248ab96341c2336f983cd (patch) | |
| tree | ee1a32b47f889ed132a314286cd90a07f3700216 /crates/ra_hir_def/src/path/lower/lower_use.rs | |
| parent | 7836720f2e9a7fa01ae09ff9d51413ecd5877139 (diff) | |
| parent | 5a6e770f99d1549432c1e8a1abb1aada09ad2590 (diff) | |
Merge #3263
3263: Implement unsizing coercions using Chalk r=matklad a=flodiebold
These are coercions like `&[T; n] -> &[T]`, which are handled by the `Unsize` and `CoerceUnsized` traits. The impls for `Unsize` are all built in to the compiler and require special handling, so we need to provide them to Chalk.
This adds the following `Unsize` impls:
- `Unsize<[T]> for [T; _]`
- `Unsize<dyn Trait> for T where T: Trait`
- `Unsize<dyn SuperTrait> for dyn SubTrait`
Hence we are still missing the 'unsizing the last field of a generic struct' case.
Co-authored-by: Florian Diebold <[email protected]>
Co-authored-by: Florian Diebold <[email protected]>
Diffstat (limited to 'crates/ra_hir_def/src/path/lower/lower_use.rs')
0 files changed, 0 insertions, 0 deletions