rust/crates/hir_ty
bors[bot] 79a7ba0bdf
Merge #11623
11623: fix: Add type variable table to InferenceTableSnapshot r=flodiebold a=tysg

Fixes #11601. 

I observed that removing the `rollback` line in 6fc3d3aa4c fixes the issue.  

Looking at the stacktrace, I believe not restoring `type_variable_table` causes `type_variable_table` and `var_unification_table` to go out of sync, then when `hir_ty::infer::unify::InferenceTable::new_var` tries to extend `type_variable_table` to be the same length as `var_unification_table`, problems will arise.

However, I cannot pinpoint exactly how or where the vector capacity overflow happens, so my understanding might not be correct after all. 

Co-authored-by: Tianyi Song <42670338+tysg@users.noreply.github.com>
2022-03-05 10:32:07 +00:00
..
src Merge #11623 2022-03-05 10:32:07 +00:00
Cargo.toml Bump chalk 2022-01-21 19:51:21 +02:00