remove needs_drop

the8472 · the8472 · commit 8c7046e67537 · 2020-11-07T21:40:55.000+01:00
diff --git a/library/alloc/src/vec.rs b/library/alloc/src/vec.rs
@@ -2136,10 +2136,8 @@ impl<T> InPlaceDrop<T> {
 impl<T> Drop for InPlaceDrop<T> {
     #[inline]
     fn drop(&mut self) {
-        if mem::needs_drop::<T>() {
-            unsafe {
-                ptr::drop_in_place(slice::from_raw_parts_mut(self.inner, self.len()));
-            }
+        unsafe {
+            ptr::drop_in_place(slice::from_raw_parts_mut(self.inner, self.len()));
         }
     }
 }
@@ -2871,10 +2869,8 @@ impl<T> IntoIter<T> {
     }
 
     fn drop_remaining(&mut self) {
-        if mem::needs_drop::<T>() {
-            unsafe {
-                ptr::drop_in_place(self.as_mut_slice());
-            }
+        unsafe {
+            ptr::drop_in_place(self.as_mut_slice());
         }
         self.ptr = self.end;
     }

Original file line number	Diff line number	Diff line change
`@@ -2136,10 +2136,8 @@ impl<T> InPlaceDrop<T> {`
`2136`	`2136`	`impl<T> Drop for InPlaceDrop<T> {`
`2137`	`2137`	`#[inline]`
`2138`	`2138`	`fn drop(&mut self) {`
`2139`		`- if mem::needs_drop::<T>() {`
`2140`		`- unsafe {`
`2141`		`- ptr::drop_in_place(slice::from_raw_parts_mut(self.inner, self.len()));`
`2142`		`- }`
	`2139`	`+ unsafe {`
	`2140`	`+ ptr::drop_in_place(slice::from_raw_parts_mut(self.inner, self.len()));`
`2143`	`2141`	`}`
`2144`	`2142`	`}`
`2145`	`2143`	`}`
`@@ -2871,10 +2869,8 @@ impl<T> IntoIter<T> {`
`2871`	`2869`	`}`
`2872`	`2870`
`2873`	`2871`	`fn drop_remaining(&mut self) {`
`2874`		`- if mem::needs_drop::<T>() {`
`2875`		`- unsafe {`
`2876`		`- ptr::drop_in_place(self.as_mut_slice());`
`2877`		`- }`
	`2872`	`+ unsafe {`
	`2873`	`+ ptr::drop_in_place(self.as_mut_slice());`
`2878`	`2874`	`}`
`2879`	`2875`	`self.ptr = self.end;`
`2880`	`2876`	`}`