Add AsRef<[u8]> for String's Drain.

m-ou-se · m-ou-se · commit f5bb523e94b4 · 2020-09-09T18:07:27.000+02:00
diff --git a/library/alloc/src/string.rs b/library/alloc/src/string.rs
@@ -2488,6 +2488,13 @@ impl<'a> AsRef<str> for Drain<'a> {
     }
 }
 
+#[unstable(feature = "string_drain_as_str", issue = "none")]
+impl<'a> AsRef<[u8]> for Drain<'a> {
+    fn as_ref(&self) -> &[u8] {
+        self.as_str().as_bytes()
+    }
+}
+
 #[stable(feature = "drain", since = "1.6.0")]
 impl Iterator for Drain<'_> {
     type Item = char;

Original file line number	Diff line number	Diff line change
`@@ -2488,6 +2488,13 @@ impl<'a> AsRef<str> for Drain<'a> {`
`2488`	`2488`	`}`
`2489`	`2489`	`}`
`2490`	`2490`
	`2491`	`+#[unstable(feature = "string_drain_as_str", issue = "none")]`
	`2492`	`+impl<'a> AsRef<[u8]> for Drain<'a> {`
	`2493`	`+ fn as_ref(&self) -> &[u8] {`
	`2494`	`+ self.as_str().as_bytes()`
	`2495`	`+ }`
	`2496`	`+}`
	`2497`	`+`
`2491`	`2498`	`#[stable(feature = "drain", since = "1.6.0")]`
`2492`	`2499`	`impl Iterator for Drain<'_> {`
`2493`	`2500`	`type Item = char;`