mathieu/granite-rust
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Actually migrate OpaqueHiddenType

Browse source
This commit is contained in:
Nikita Tomashevich 2022-08-21 22:39:46 +03:00
parent 313d474b35
commit 7e4f433720
No known key found for this signature in database
GPG key ID: B29791D4D878E345
1 changed files with 6 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
compiler/rustc_infer/src/infer/opaque_types.rs
View file

@ -1,3 +1,4 @@
use crate::errors::OpaqueHiddenTypeDiag;
use crate::infer::{DefiningAnchor, InferCtxt, InferOk};
use crate::traits;
use hir::def_id::{DefId, LocalDefId};
@ -153,22 +154,11 @@ impl<'a, 'tcx> InferCtxt<'a, 'tcx> {
if let Some(OpaqueTyOrigin::TyAlias) =
did2.as_local().and_then(|did2| self.opaque_type_origin(did2, cause.span))
{
self.tcx
.sess
.struct_span_err(
cause.span,
"opaque type's hidden type cannot be another opaque type from the same scope",
)
.span_label(cause.span, "one of the two opaque types used here has to be outside its defining scope")
.span_note(
self.tcx.def_span(def_id),
"opaque type whose hidden type is being assigned",
)
.span_note(
self.tcx.def_span(did2),
"opaque type being used as hidden type",
)
.emit();
self.tcx.sess.emit_err(OpaqueHiddenTypeDiag {
span: cause.span,
hidden_type: self.tcx.def_span(did2),
opaque_type: self.tcx.def_span(def_id),
});
}
}
Some(self.register_hidden_type(