Rollup merge of #127091 - Sky9x:fused-error-sources-iter, r=dtolnay · model-checking/verify-rust-std@6f6e343 (original) (raw)

Original file line number	Diff line number	Diff line change
@@ -1008,8 +1008,15 @@ impl<'a> Iterator for Source<'a> {
1008	1008	self.current = self.current.and_then(Error::source);
1009	1009	current
1010	1010	}
	1011	+
	1012	+fn size_hint(&self) -> (usize, Option<usize>) {
	1013	+if self.current.is_some() { (1, None) } else { (0, Some(0)) }
	1014	+}
1011	1015	}
1012	1016
	1017	+#[unstable(feature = "error_iter", issue = "58520")]
	1018	+impl<'a> crate::iter::FusedIterator for Source<'a> {}
	1019	+
1013	1020	#[stable(feature = "error_by_ref", since = "1.51.0")]
1014	1021	impl<'a, T: Error + ?Sized> Error for &'a T {
1015	1022	#[allow(deprecated, deprecated_in_future)]