On latest nightly works with System allocator

src/destructors.md

@@ -28,7 +28,7 @@ For instance, a custom implementation of `Box` might write `Drop` like this:
 ```rust
 #![feature(ptr_internals, allocator_api, unique)]
 
-use std::alloc::{Global, GlobalAlloc, Layout};
+use std::alloc::{System, GlobalAlloc, Layout};
 use std::mem;
 use std::ptr::{drop_in_place, Unique};
 
@@ -38,7 +38,7 @@ impl<T> Drop for Box<T> {
     fn drop(&mut self) {
         unsafe {
             drop_in_place(self.ptr.as_ptr());
-            Global.dealloc(self.ptr.as_ptr() as *mut _, Layout::new::<T>())
+            System.dealloc(self.ptr.as_ptr() as *mut _, Layout::new::<T>())
         }
     }
 }
@@ -54,7 +54,7 @@ However this wouldn't work:
 ```rust
 #![feature(allocator_api, ptr_internals, unique)]
 
-use std::alloc::{Global, GlobalAlloc, Layout};
+use std::alloc::{System, GlobalAlloc, Layout};
 use std::ptr::{drop_in_place, Unique};
 use std::mem;
 
@@ -64,7 +64,7 @@ impl<T> Drop for Box<T> {
     fn drop(&mut self) {
         unsafe {
             drop_in_place(self.ptr.as_ptr());
-            Global.dealloc(self.ptr.as_ptr() as *mut _, Layout::new::<T>());
+            System.dealloc(self.ptr.as_ptr() as *mut _, Layout::new::<T>());
         }
     }
 }
@@ -76,7 +76,7 @@ impl<T> Drop for SuperBox<T> {
         unsafe {
             // Hyper-optimized: deallocate the box's contents for it
             // without `drop`ing the contents
-            Global.dealloc(self.my_box.ptr.as_ptr() as *mut _, Layout::new::<T>());
+            System.dealloc(self.my_box.ptr.as_ptr() as *mut _, Layout::new::<T>());
         }
     }
 }
@@ -125,7 +125,7 @@ of Self during `drop` is to use an Option:
 ```rust
 #![feature(allocator_api, ptr_internals, unique)]
 
-use std::alloc::{GlobalAlloc, Global, Layout};
+use std::alloc::{GlobalAlloc, System, Layout};
 use std::ptr::{drop_in_place, Unique};
 use std::mem;
 
@@ -135,7 +135,7 @@ impl<T> Drop for Box<T> {
     fn drop(&mut self) {
         unsafe {
             drop_in_place(self.ptr.as_ptr());
-            Global.dealloc(self.ptr.as_ptr() as *mut _, Layout::new::<T>());
+            System.dealloc(self.ptr.as_ptr() as *mut _, Layout::new::<T>());
         }
     }
 }
@@ -149,7 +149,7 @@ impl<T> Drop for SuperBox<T> {
             // without `drop`ing the contents. Need to set the `box`
             // field as `None` to prevent Rust from trying to Drop it.
             let my_box = self.my_box.take().unwrap();
-            Global.dealloc(my_box.ptr.as_ptr() as *mut _, Layout::new::<T>());
+            System.dealloc(my_box.ptr.as_ptr() as *mut _, Layout::new::<T>());
             mem::forget(my_box);
         }
     }

src/vec-final.md

@@ -5,7 +5,7 @@
 #![feature(allocator_api)]
 #![feature(unique)]
 
-use std::alloc::{oom, Global, GlobalAlloc, Layout};
+use std::alloc::{oom, System, GlobalAlloc, Layout};
 use std::marker::PhantomData;
 use std::mem;
 use std::ops::{Deref, DerefMut};
@@ -37,11 +37,11 @@ impl<T> RawVec<T> {
             assert!(elem_size != 0, "capacity overflow");
 
             let (new_cap, ptr) = if self.cap == 0 {
-                let ptr = Global.alloc(Layout::array::<T>(1).unwrap());
+                let ptr = System.alloc(Layout::array::<T>(1).unwrap());
                 (1, ptr)
             } else {
                 let new_cap = 2 * self.cap;
-                let ptr = Global.realloc(
+                let ptr = System.realloc(
                     self.ptr.as_ptr() as *mut _,
                     Layout::array::<T>(self.cap).unwrap(),
                     Layout::array::<T>(new_cap).unwrap().size(),
@@ -65,7 +65,7 @@ impl<T> Drop for RawVec<T> {
         let elem_size = mem::size_of::<T>();
         if self.cap != 0 && elem_size != 0 {
             unsafe {
-                Global.dealloc(
+                System.dealloc(
                     self.ptr.as_ptr() as *mut _,
                     Layout::array::<T>(self.cap).unwrap(),
                 );