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use borrow_check::nll::region_infer::RegionInferenceContext;
use borrow_check::nll::universal_regions::DefiningTy;
use rustc_errors::DiagnosticBuilder;
impl<'tcx> RegionInferenceContext<'tcx> {
pub(crate) fn annotate(&self, err: &mut DiagnosticBuilder<'_>) {
match self.universal_regions.defining_ty {
DefiningTy::Closure(def_id, substs) => {
err.note(&format!(
"defining type: {:?} with closure substs {:#?}",
def_id,
&substs.substs[..]
));
}
DefiningTy::Generator(def_id, substs, _) => {
err.note(&format!(
"defining type: {:?} with generator substs {:#?}",
def_id,
&substs.substs[..]
));
}
DefiningTy::FnDef(def_id, substs) => {
err.note(&format!(
"defining type: {:?} with substs {:#?}",
def_id,
&substs[..]
));
}
DefiningTy::Const(def_id, substs) => {
err.note(&format!(
"defining constant type: {:?} with substs {:#?}",
def_id,
&substs[..]
));
}
}
}
}