Rollup merge of #140678 - compiler-errors:dont-ice-on-infer-in-upvar, r=lcnr

Browse Source

Be a bit more relaxed about not yet constrained infer vars in closure upvar analysis

See the writeup in `tests/ui/closures/opaque-upvar.rs`.

TL;DR is that this has to do with the fact that the recursive revealing uses, which have not yet been constrained from the defining use by the time that closure upvar inference is performed, remain as infer vars during upvar analysis. We don't really care, though, since anywhere we structurally match on a type in upvar analysis, we already call `structurally_resolve_type` right before `.kind()`, which would emit a true ambiguity error.

Fixes https://github.com/rust-lang/trait-system-refactor-initiative/issues/197

r? lcnr

...

This commit is contained in:

Stuart Cook 2025-05-06 16:28:43 +10:00 committed by GitHub

parent a356d2290b 676ac98bc7

commit d76c112cbf

No known key found for this signature in database

GPG Key ID: B5690EEEBB952194

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Show Stats Download Patch File Download Diff File Expand all files Collapse all files

Diff Content Not Available