New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Export {Imm,M}utableIntSlice in libcollections. #17924

Closed

mahkoh opened this issue Oct 10, 2014 · 0 comments

Contributor

mahkoh commented Oct 10, 2014

No description provided.

thestinger added the A-libs label

mahkoh closed this as completed

lnicola pushed a commit to lnicola/rust that referenced this issue


          Auto merge of rust-lang#17924 - ShoyuVanilla:issue-17921, r=Veykril

f9c0c8a

fix: Panic when a TAIT exists in a RPIT

Fixes  rust-lang#17921

When there is a TAIT inside of a RPIT like;

```rust
trait Foo {}
type Bar = impl Foo;
fn foo<A>() -> impl Future<Output = Bar> { .. }
```

while inferencing `fn foo`, `insert_inference_vars_for_impl_trait` tries to substitute impl trait bounds of `Bar`, i.e. `Implemented(Foo)` with RPITs `placeholders`, and this causes panic

https://github.com/rust-lang/rust-analyzer/blob/fa003262474185fd62168379500fe906b331824b/crates/hir-ty/src/infer.rs#L903-L905

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment