Multipeek::fold

Philippe-Cholet · phimuemue · commit fbe30e71784f · 2023-12-15T12:13:37.000Z
diff --git a/src/multipeek_impl.rs b/src/multipeek_impl.rs
@@ -102,6 +102,14 @@ where
     fn size_hint(&self) -> (usize, Option<usize>) {
         size_hint::add_scalar(self.iter.size_hint(), self.buf.len())
     }
+
+    fn fold<B, F>(self, mut init: B, mut f: F) -> B
+    where
+        F: FnMut(B, Self::Item) -> B,
+    {
+        init = self.buf.into_iter().fold(init, &mut f);
+        self.iter.fold(init, f)
+    }
 }
 
 // Same size

Original file line number	Diff line number	Diff line change
`@@ -102,6 +102,14 @@ where`
`102`	`102`	`fn size_hint(&self) -> (usize, Option<usize>) {`
`103`	`103`	`size_hint::add_scalar(self.iter.size_hint(), self.buf.len())`
`104`	`104`	`}`
	`105`	`+`
	`106`	`+ fn fold<B, F>(self, mut init: B, mut f: F) -> B`
	`107`	`+ where`
	`108`	`+ F: FnMut(B, Self::Item) -> B,`
	`109`	`+ {`
	`110`	`+ init = self.buf.into_iter().fold(init, &mut f);`
	`111`	`+ self.iter.fold(init, f)`
	`112`	`+ }`
`105`	`113`	`}`
`106`	`114`
`107`	`115`	`// Same size`