fix clippy::manual_map

hellow554 · phimuemue · commit a16c01c90781 · 2022-06-03T09:04:18.000+02:00
diff --git a/src/adaptors/mod.rs b/src/adaptors/mod.rs
@@ -327,12 +327,7 @@ impl<I, J> Iterator for Product<I, J>
             }
             Some(x) => x
         };
-        match self.a_cur {
-            None => None,
-            Some(ref a) => {
-                Some((a.clone(), elt_b))
-            }
-        }
+        self.a_cur.as_ref().map(|a| (a.clone(), elt_b))
     }
 
     fn size_hint(&self) -> (usize, Option<usize>) {

Original file line number	Diff line number	Diff line change
`@@ -327,12 +327,7 @@ impl<I, J> Iterator for Product<I, J>`
`327`	`327`	`}`
`328`	`328`	`Some(x) => x`
`329`	`329`	`};`
`330`		`- match self.a_cur {`
`331`		`- None => None,`
`332`		`- Some(ref a) => {`
`333`		`- Some((a.clone(), elt_b))`
`334`		`- }`
`335`		`- }`
	`330`	`+ self.a_cur.as_ref().map(\|a\| (a.clone(), elt_b))`
`336`	`331`	`}`
`337`	`332`
`338`	`333`	`fn size_hint(&self) -> (usize, Option<usize>) {`