Skip to content

symbol_mangling: mangle UnsafeBinder via erased inner type #581

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

Open
SebTardif wants to merge 1 commit into
base: main
Choose a base branch
from
+8 −2
Open

symbol_mangling: mangle UnsafeBinder via erased inner type #581

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 8 additions & 2 deletions compiler/rustc_symbol_mangling/src/v0.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -587,8 +587,14 @@ impl<'tcx> Printer<'tcx> for V0SymbolMangler<'tcx> {
})?;
}

// FIXME(unsafe_binder):
ty::UnsafeBinder(..) => todo!(),
// Unsafe binders are transparent for symbol identity: mangle the
// inner type with regions erased (same approach as other ty queries
// on `UnsafeBinder`). No dedicated v0 letter yet; this avoids ICE
// if an unstable unsafe-binder type reaches symbol naming.
ty::UnsafeBinder(bound_ty) => {
let inner = self.tcx.instantiate_bound_regions_with_erased((*bound_ty).into());
inner.print(self)?;
}

ty::Dynamic(predicates, r) => {
self.push("D");
Expand Down