+
+ pub fn iter(&self) -> <&Self as IntoIterator>::IntoIter {
+ (&self).into_iter()
+ }
+}
+
+impl<'tcx> IntoIterator for InstantiatedPredicates<'tcx> {
+ type Item = (Predicate<'tcx>, Span);
+
+ type IntoIter = std::iter::Zip<std::vec::IntoIter<Predicate<'tcx>>, std::vec::IntoIter<Span>>;
+
+ fn into_iter(self) -> Self::IntoIter {
+ std::iter::zip(self.predicates, self.spans)
+ }
+}
+
+impl<'a, 'tcx> IntoIterator for &'a InstantiatedPredicates<'tcx> {
+ type Item = (Predicate<'tcx>, Span);
+
+ type IntoIter = std::iter::Zip<
+ std::iter::Copied<std::slice::Iter<'a, Predicate<'tcx>>>,
+ std::iter::Copied<std::slice::Iter<'a, Span>>,
+ >;
+
+ fn into_iter(self) -> Self::IntoIter {
+ std::iter::zip(self.predicates.iter().copied(), self.spans.iter().copied())
+ }