impl {i,u}{8,16,32,64,size}

Author: Jorge Aparicio

src/libarena/lib.rs

@@ -46,6 +46,7 @@ use std::intrinsics::{TyDesc, get_tydesc};
 use std::intrinsics;
 use std::marker;
 use std::mem;
+#[cfg(stage0)]
 use std::num::{Int, UnsignedInt};
 use std::ptr;
 use std::rc::Rc;

src/libcollections/btree/node.rs

@@ -23,7 +23,7 @@ use core::iter::Zip;
 use core::marker::PhantomData;
 use core::ops::{Deref, DerefMut, Index, IndexMut};
 use core::ptr::Unique;
-use core::{slice, mem, ptr, cmp, num, raw};
+use core::{slice, mem, ptr, cmp, raw};
 use alloc::heap::{self, EMPTY};
 
 use borrow::Borrow;
@@ -105,7 +105,10 @@ struct MutNodeSlice<'a, K: 'a, V: 'a> {
 /// Fails if `target_alignment` is not a power of two.
 #[inline]
 fn round_up_to_next(unrounded: usize, target_alignment: usize) -> usize {
-    assert!(num::UnsignedInt::is_power_of_two(target_alignment));
+    #[cfg(stage0)]
+    use core::num::UnsignedInt;
+
+    assert!(target_alignment.is_power_of_two());
     (unrounded + target_alignment - 1) & !(target_alignment - 1)
 }
 

src/libcollections/vec.rs

@@ -59,6 +59,7 @@ use core::intrinsics::assume;
 use core::iter::{repeat, FromIterator, IntoIterator};
 use core::marker::PhantomData;
 use core::mem;
+#[cfg(stage0)]
 use core::num::{Int, UnsignedInt};
 use core::ops::{Index, IndexMut, Deref, Add};
 use core::ops;

src/libcollections/vec_deque.rs

@@ -25,6 +25,7 @@ use core::default::Default;
 use core::fmt;
 use core::iter::{self, repeat, FromIterator, IntoIterator, RandomAccessIterator};
 use core::mem;
+#[cfg(stage0)]
 use core::num::{Int, UnsignedInt};
 use core::num::wrapping::WrappingOps;
 use core::ops::{Index, IndexMut};