-
Notifications
You must be signed in to change notification settings - Fork 13.6k
Closed
Labels
C-bugCategory: This is a bug.Category: This is a bug.F-dyn_star`#![feature(dyn_star)]``#![feature(dyn_star)]`I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.requires-nightlyThis issue requires a nightly compiler in some way.This issue requires a nightly compiler in some way.
Description
Example:
#![feature(dyn_star)]
#![allow(incomplete_features)]
trait AddOne {
fn add1(&mut self) -> usize;
}
impl AddOne for usize {
fn add1(&mut self) -> usize {
*self += 1;
*self
}
}
fn add_one(i: &mut dyn* AddOne) -> usize {
i.add1()
}
fn main() {
let x = 42 as dyn* AddOne;
println!("{}", add_one(&mut x));
println!("{}", add_one(&mut x));
}
This fails with the following ICE:
error: internal compiler error: compiler/rustc_trait_selection/src/traits/select/confirmation.rs:1148:18: impossible case reached
Metadata
Metadata
Assignees
Labels
C-bugCategory: This is a bug.Category: This is a bug.F-dyn_star`#![feature(dyn_star)]``#![feature(dyn_star)]`I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.requires-nightlyThis issue requires a nightly compiler in some way.This issue requires a nightly compiler in some way.