BufWriter: simplify buffer draining

tgnottingham · tgnottingham · commit 0f29dc40f837 · 2021-04-13T10:09:37.000-07:00
diff --git a/library/std/src/io/buffered/bufwriter.rs b/library/std/src/io/buffered/bufwriter.rs
@@ -155,11 +155,7 @@ impl<W: Write> BufWriter<W> {
         impl Drop for BufGuard<'_> {
             fn drop(&mut self) {
                 if self.written > 0 {
-                    if self.done() {
-                        self.buffer.clear();
-                    } else {
-                        self.buffer.drain(..self.written);
-                    }
+                    self.buffer.drain(..self.written);
                 }
             }
         }

Original file line number	Diff line number	Diff line change
`@@ -155,11 +155,7 @@ impl<W: Write> BufWriter<W> {`
`155`	`155`	`impl Drop for BufGuard<'_> {`
`156`	`156`	`fn drop(&mut self) {`
`157`	`157`	`if self.written > 0 {`
`158`		`- if self.done() {`
`159`		`- self.buffer.clear();`
`160`		`- } else {`
`161`		`- self.buffer.drain(..self.written);`
`162`		`- }`
	`158`	`+ self.buffer.drain(..self.written);`
`163`	`159`	`}`
`164`	`160`	`}`
`165`	`161`	`}`