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use rustc_span::Span;
use rustc_type_ir::elaborate::Elaboratable;
use crate::ty::{self, TyCtxt};
impl<'tcx> Elaboratable<TyCtxt<'tcx>> for ty::Clause<'tcx> {
fn predicate(&self) -> ty::Predicate<'tcx> {
self.as_predicate()
}
fn child(&self, clause: ty::Clause<'tcx>) -> Self {
clause
}
fn child_with_derived_cause(
&self,
clause: ty::Clause<'tcx>,
_span: Span,
_parent_trait_pred: ty::PolyTraitPredicate<'tcx>,
_index: usize,
) -> Self {
clause
}
}
impl<'tcx> Elaboratable<TyCtxt<'tcx>> for ty::Predicate<'tcx> {
fn predicate(&self) -> ty::Predicate<'tcx> {
*self
}
fn child(&self, clause: ty::Clause<'tcx>) -> Self {
clause.as_predicate()
}
fn child_with_derived_cause(
&self,
clause: ty::Clause<'tcx>,
_span: Span,
_parent_trait_pred: ty::PolyTraitPredicate<'tcx>,
_index: usize,
) -> Self {
clause.as_predicate()
}
}
impl<'tcx> Elaboratable<TyCtxt<'tcx>> for (ty::Predicate<'tcx>, Span) {
fn predicate(&self) -> ty::Predicate<'tcx> {
self.0
}
fn child(&self, clause: ty::Clause<'tcx>) -> Self {
(clause.as_predicate(), self.1)
}
fn child_with_derived_cause(
&self,
clause: ty::Clause<'tcx>,
_span: Span,
_parent_trait_pred: ty::PolyTraitPredicate<'tcx>,
_index: usize,
) -> Self {
(clause.as_predicate(), self.1)
}
}
impl<'tcx> Elaboratable<TyCtxt<'tcx>> for (ty::Clause<'tcx>, Span) {
fn predicate(&self) -> ty::Predicate<'tcx> {
self.0.as_predicate()
}
fn child(&self, clause: ty::Clause<'tcx>) -> Self {
(clause, self.1)
}
fn child_with_derived_cause(
&self,
clause: ty::Clause<'tcx>,
_span: Span,
_parent_trait_pred: ty::PolyTraitPredicate<'tcx>,
_index: usize,
) -> Self {
(clause, self.1)
}
}
|
