bjoernager/rust
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Label opaque type for 'captures lifetime' error message

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This commit is contained in:
Michael Goulet 2023-02-21 03:58:38 +00:00
parent 13471d3b20
commit 4b23a224ab
21 changed files with 88 additions and 30 deletions
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8
compiler/rustc_infer/src/infer/error_reporting/mod.rs
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@ -281,9 +281,10 @@ pub fn unexpected_hidden_region_diagnostic<'tcx>(
span: Span,
hidden_ty: Ty<'tcx>,
hidden_region: ty::Region<'tcx>,
opaque_ty: ty::OpaqueTypeKey<'tcx>,
opaque_ty_key: ty::OpaqueTypeKey<'tcx>,
) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> {
let opaque_ty = tcx.mk_opaque(opaque_ty.def_id.to_def_id(), opaque_ty.substs);
let opaque_ty = tcx.mk_opaque(opaque_ty_key.def_id.to_def_id(), opaque_ty_key.substs);
let mut err = struct_span_err!(
tcx.sess,
span,
@ -291,6 +292,9 @@ pub fn unexpected_hidden_region_diagnostic<'tcx>(
"hidden type for `{opaque_ty}` captures lifetime that does not appear in bounds",
);
let opaque_ty_span = tcx.def_span(opaque_ty_key.def_id);
err.span_label(opaque_ty_span, "opaque type defined here");
// Explain the region we are capturing.
match *hidden_region {
ty::ReEarlyBound(_) | ty::ReFree(_) | ty::ReStatic => {