bjoernager/rust
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instantiate response: no unnecessary new universe

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this previously was a off-by-one error.
This commit is contained in:
lcnr 2023-08-17 15:15:09 +02:00
parent d06ca0ffaf
commit 11716830ac
4 changed files with 158 additions and 1 deletions
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2
compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs
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@ -215,7 +215,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> {
// created inside of the query directly instead of returning them to the
// caller.
let prev_universe = self.infcx.universe();
let universes_created_in_query = response.max_universe.index() + 1;
let universes_created_in_query = response.max_universe.index();
for _ in 0..universes_created_in_query {
self.infcx.create_next_universe();
}