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src/liballoc/boxed.rs

@@ -264,7 +264,6 @@ impl BoxAny for Box<Any> {
     }
 }
 
-#[cfg(not(stage0))]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl BoxAny for Box<Any+Send> {
     #[inline]

src/liballoc/heap.rs

@@ -8,10 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[cfg(stage0)]
-#[cfg(not(test))]
-use core::ptr::PtrExt;
-
 // FIXME: #13996: mark the `allocate` and `reallocate` return value as `noalias`
 
 /// Return a pointer to `size` bytes of memory aligned to `align`.

src/liballoc/rc.rs

@@ -159,9 +159,6 @@ use core::nonzero::NonZero;
 use core::ops::{Deref, Drop};
 use core::option::Option;
 use core::option::Option::{Some, None};
-#[cfg(stage0)]
-use core::ptr::{self, PtrExt};
-#[cfg(not(stage0))]
 use core::ptr;
 use core::result::Result;
 use core::result::Result::{Ok, Err};

src/libarena/lib.rs

@@ -43,12 +43,8 @@ extern crate alloc;
 use std::cell::{Cell, RefCell};
 use std::cmp;
 use std::intrinsics;
-#[cfg(stage0)] // SNAP 270a677
-use std::intrinsics::{get_tydesc, TyDesc};
 use std::marker;
 use std::mem;
-#[cfg(stage0)]
-use std::num::{Int, UnsignedInt};
 use std::ptr;
 use std::rc::Rc;
 use std::rt::heap::{allocate, deallocate};
@@ -190,14 +186,12 @@ fn un_bitpack_tydesc_ptr(p: usize) -> (*const TyDesc, bool) {
 // HACK(eddyb) TyDesc replacement using a trait object vtable.
 // This could be replaced in the future with a custom DST layout,
 // or `&'static (drop_glue, size, align)` created by a `const fn`.
-#[cfg(not(stage0))] // SNAP 270a677
 struct TyDesc {
     drop_glue: fn(*const i8),
     size: usize,
     align: usize
 }
 
-#[cfg(not(stage0))] // SNAP 270a677
 unsafe fn get_tydesc<T>() -> *const TyDesc {
     use std::raw::TraitObject;
 

src/libcollections/btree/node.rs

@@ -105,9 +105,6 @@ 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 {
-    #[cfg(stage0)]
-    use core::num::UnsignedInt;
-
     assert!(target_alignment.is_power_of_two());
     (unrounded + target_alignment - 1) & !(target_alignment - 1)
 }

src/libcollections/macros.rs

@@ -8,45 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[cfg(stage0)]
-/// Creates a `Vec` containing the arguments.
-///
-/// `vec!` allows `Vec`s to be defined with the same syntax as array expressions.
-/// There are two forms of this macro:
-///
-/// - Create a `Vec` containing a given list of elements:
-///
-/// ```
-/// let v = vec![1, 2, 3];
-/// assert_eq!(v[0], 1);
-/// assert_eq!(v[1], 2);
-/// assert_eq!(v[2], 3);
-/// ```
-///
-/// - Create a `Vec` from a given element and size:
-///
-/// ```
-/// let v = vec![1; 3];
-/// assert_eq!(v, [1, 1, 1]);
-/// ```
-///
-/// Note that unlike array expressions this syntax supports all elements
-/// which implement `Clone` and the number of elements doesn't have to be
-/// a constant.
-#[macro_export]
-#[stable(feature = "rust1", since = "1.0.0")]
-macro_rules! vec {
-    ($elem:expr; $n:expr) => (
-        $crate::vec::from_elem($elem, $n)
-    );
-    ($($x:expr),*) => (
-        <[_] as $crate::slice::SliceExt>::into_vec(
-            $crate::boxed::Box::new([$($x),*]))
-    );
-    ($($x:expr,)*) => (vec![$($x),*])
-}
-
-#[cfg(not(stage0))]
 /// Creates a `Vec` containing the arguments.
 ///
 /// `vec!` allows `Vec`s to be defined with the same syntax as array expressions.
@@ -84,11 +45,10 @@ macro_rules! vec {
     ($($x:expr,)*) => (vec![$($x),*])
 }
 
-// HACK(japaric): with cfg(test) the inherent `[T]::into_vec` method, which is required for this
+// HACK(japaric): with cfg(test) the inherent `[T]::into_vec` method, which is
-// macro definition, is not available. Instead use the `slice::into_vec`  function which is only
+// required for this macro definition, is not available. Instead use the
-// available with cfg(test)
+// `slice::into_vec`  function which is only available with cfg(test)
 // NB see the slice::hack module in slice.rs for more information
-#[cfg(not(stage0))]
 #[cfg(test)]
 macro_rules! vec {
     ($elem:expr; $n:expr) => (

src/libcollections/string.rs

@@ -85,23 +85,6 @@ impl String {
         }
     }
 
-    #[cfg(stage0)]
-    /// Creates a new string buffer from the given string.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// let s = String::from_str("hello");
-    /// assert_eq!(s.as_slice(), "hello");
-    /// ```
-    #[inline]
-    #[unstable(feature = "collections",
-               reason = "needs investigation to see if to_string() can match perf")]
-    pub fn from_str(string: &str) -> String {
-        String { vec: ::slice::SliceExt::to_vec(string.as_bytes()) }
-    }
-
-    #[cfg(not(stage0))]
     /// Creates a new string buffer from the given string.
     ///
     /// # Examples
@@ -118,9 +101,9 @@ impl String {
         String { vec: <[_]>::to_vec(string.as_bytes()) }
     }
 
-    // HACK(japaric): with cfg(test) the inherent `[T]::to_vec` method, which is required for this
+    // HACK(japaric): with cfg(test) the inherent `[T]::to_vec` method, which is
-    // method definition, is not available. Since we don't require this method for testing
+    // required for this method definition, is not available. Since we don't
-    // purposes, I'll just stub it
+    // require this method for testing purposes, I'll just stub it
     // NB see the slice::hack module in slice.rs for more information
     #[inline]
     #[cfg(test)]

src/libcollections/vec.rs

@@ -59,8 +59,6 @@ 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;
 use core::ptr;
@@ -1283,18 +1281,13 @@ pub fn from_elem<T: Clone>(elem: T, n: usize) -> Vec<T> {
 
 #[unstable(feature = "collections")]
 impl<T:Clone> Clone for Vec<T> {
-    #[cfg(stage0)]
-    fn clone(&self) -> Vec<T> { ::slice::SliceExt::to_vec(&**self) }
-
-    #[cfg(not(stage0))]
     #[cfg(not(test))]
     fn clone(&self) -> Vec<T> { <[T]>::to_vec(&**self) }
 
-    // HACK(japaric): with cfg(test) the inherent `[T]::to_vec` method, which is required for this
+    // HACK(japaric): with cfg(test) the inherent `[T]::to_vec` method, which is
-    // method definition, is not available. Instead use the `slice::to_vec`  function which is only
+    // required for this method definition, is not available. Instead use the
-    // available with cfg(test)
+    // `slice::to_vec`  function which is only available with cfg(test)
     // NB see the slice::hack module in slice.rs for more information
-    #[cfg(not(stage0))]
     #[cfg(test)]
     fn clone(&self) -> Vec<T> {
         ::slice::to_vec(&**self)

src/libcollections/vec_deque.rs

@@ -25,8 +25,6 @@ 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};
 use core::ptr::{self, Unique};

src/libcore/any.rs

@@ -155,7 +155,6 @@ impl Any {
     }
 }
 
-#[cfg(not(stage0))]
 impl Any+Send {
     /// Forwards to the method defined on the type `Any`.
     #[stable(feature = "rust1", since = "1.0.0")]

src/libcore/intrinsics.rs

@@ -44,26 +44,6 @@
 
 use marker::Sized;
 
-#[cfg(stage0)] // SNAP 270a677
-pub type GlueFn = extern "Rust" fn(*const i8);
-
-#[lang="ty_desc"]
-#[derive(Copy)]
-#[cfg(stage0)] // SNAP 270a677
-pub struct TyDesc {
-    // sizeof(T)
-    pub size: usize,
-
-    // alignof(T)
-    pub align: usize,
-
-    // Called when a value of type `T` is no longer needed
-    pub drop_glue: GlueFn,
-
-    // Name corresponding to the type
-    pub name: &'static str,
-}
-
 extern "rust-intrinsic" {
 
     // NB: These intrinsics take unsafe pointers because they mutate aliased
@@ -198,12 +178,8 @@ extern "rust-intrinsic" {
     pub fn min_align_of<T>() -> usize;
     pub fn pref_align_of<T>() -> usize;
 
-    /// Get a static pointer to a type descriptor.
-    #[cfg(stage0)] // SNAP 270a677
-    pub fn get_tydesc<T: ?Sized>() -> *const TyDesc;
-
     /// Gets a static string slice containing the name of a type.
-    #[cfg(not(stage0))] // SNAP 270a677
+    #[cfg(not(stage0))]
     pub fn type_name<T: ?Sized>() -> &'static str;
 
     /// Gets an identifier which is globally unique to the specified type. This

src/libcore/prelude.rs

@@ -42,8 +42,6 @@ pub use iter::{Extend, IteratorExt};
 pub use iter::{Iterator, DoubleEndedIterator};
 pub use iter::{ExactSizeIterator};
 pub use option::Option::{self, Some, None};
-#[cfg(stage0)]
-pub use ptr::{PtrExt, MutPtrExt};
 pub use result::Result::{self, Ok, Err};
 pub use slice::{AsSlice, SliceExt};
 pub use str::{Str, StrExt};

src/libcore/ptr.rs

@@ -262,145 +262,13 @@ pub unsafe fn write<T>(dst: *mut T, src: T) {
     intrinsics::move_val_init(&mut *dst, src)
 }
 
-#[cfg(stage0)]
-/// Methods on raw pointers
-#[stable(feature = "rust1", since = "1.0.0")]
-pub trait PtrExt {
-    /// The type which is being pointed at
-    type Target: ?Sized;
-
-    /// Returns true if the pointer is null.
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_null(self) -> bool;
-
-    /// Returns `None` if the pointer is null, or else returns a reference to
-    /// the value wrapped in `Some`.
-    ///
-    /// # Safety
-    ///
-    /// While this method and its mutable counterpart are useful for
-    /// null-safety, it is important to note that this is still an unsafe
-    /// operation because the returned value could be pointing to invalid
-    /// memory.
-    #[unstable(feature = "core",
-               reason = "Option is not clearly the right return type, and we may want \
-                         to tie the return lifetime to a borrow of the raw pointer")]
-    unsafe fn as_ref<'a>(&self) -> Option<&'a Self::Target>;
-
-    /// Calculates the offset from a pointer. `count` is in units of T; e.g. a
-    /// `count` of 3 represents a pointer offset of `3 * sizeof::<T>()` bytes.
-    ///
-    /// # Safety
-    ///
-    /// The offset must be in-bounds of the object, or one-byte-past-the-end.
-    /// Otherwise `offset` invokes Undefined Behaviour, regardless of whether
-    /// the pointer is used.
-    #[stable(feature = "rust1", since = "1.0.0")]
-    unsafe fn offset(self, count: isize) -> Self where Self::Target: Sized;
-}
-
-#[cfg(stage0)]
-/// Methods on mutable raw pointers
-#[stable(feature = "rust1", since = "1.0.0")]
-pub trait MutPtrExt {
-    /// The type which is being pointed at
-    type Target: ?Sized;
-
-    /// Returns `None` if the pointer is null, or else returns a mutable
-    /// reference to the value wrapped in `Some`.
-    ///
-    /// # Safety
-    ///
-    /// As with `as_ref`, this is unsafe because it cannot verify the validity
-    /// of the returned pointer.
-    #[unstable(feature = "core",
-               reason = "Option is not clearly the right return type, and we may want \
-                         to tie the return lifetime to a borrow of the raw pointer")]
-    unsafe fn as_mut<'a>(&self) -> Option<&'a mut Self::Target>;
-}
-
-#[cfg(stage0)]
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<T: ?Sized> PtrExt for *const T {
-    type Target = T;
-
-    #[inline]
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_null(self) -> bool { self == 0 as *const T }
-
-    #[inline]
-    #[stable(feature = "rust1", since = "1.0.0")]
-    unsafe fn offset(self, count: isize) -> *const T where T: Sized {
-        intrinsics::offset(self, count)
-    }
-
-    #[inline]
-    #[unstable(feature = "core",
-               reason = "return value does not necessarily convey all possible \
-                         information")]
-    unsafe fn as_ref<'a>(&self) -> Option<&'a T> {
-        if self.is_null() {
-            None
-        } else {
-            Some(&**self)
-        }
-    }
-}
-
-#[cfg(stage0)]
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<T: ?Sized> PtrExt for *mut T {
-    type Target = T;
-
-    #[inline]
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_null(self) -> bool { self == 0 as *mut T }
-
-    #[inline]
-    #[stable(feature = "rust1", since = "1.0.0")]
-    unsafe fn offset(self, count: isize) -> *mut T where T: Sized {
-        intrinsics::offset(self, count) as *mut T
-    }
-
-    #[inline]
-    #[unstable(feature = "core",
-               reason = "return value does not necessarily convey all possible \
-                         information")]
-    unsafe fn as_ref<'a>(&self) -> Option<&'a T> {
-        if self.is_null() {
-            None
-        } else {
-            Some(&**self)
-        }
-    }
-}
-
-#[cfg(stage0)]
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<T: ?Sized> MutPtrExt for *mut T {
-    type Target = T;
-
-    #[inline]
-    #[unstable(feature = "core",
-               reason = "return value does not necessarily convey all possible \
-                         information")]
-    unsafe fn as_mut<'a>(&self) -> Option<&'a mut T> {
-        if self.is_null() {
-            None
-        } else {
-            Some(&mut **self)
-        }
-    }
-}
-
-#[cfg(not(stage0))]
 #[stable(feature = "rust1", since = "1.0.0")]
 #[lang = "const_ptr"]
 impl<T: ?Sized> *const T {
     /// Returns true if the pointer is null.
     #[stable(feature = "rust1", since = "1.0.0")]
     #[inline]
-    pub fn is_null(self) -> bool {
+    pub fn is_null(self) -> bool where T: Sized {
         self == 0 as *const T
     }
 
@@ -417,7 +285,7 @@ impl<T: ?Sized> *const T {
                reason = "Option is not clearly the right return type, and we may want \
                          to tie the return lifetime to a borrow of the raw pointer")]
     #[inline]
-    pub unsafe fn as_ref<'a>(&self) -> Option<&'a T> {
+    pub unsafe fn as_ref<'a>(&self) -> Option<&'a T> where T: Sized {
         if self.is_null() {
             None
         } else {
@@ -440,14 +308,13 @@ impl<T: ?Sized> *const T {
     }
 }
 
-#[cfg(not(stage0))]
 #[stable(feature = "rust1", since = "1.0.0")]
 #[lang = "mut_ptr"]
 impl<T: ?Sized> *mut T {
     /// Returns true if the pointer is null.
     #[stable(feature = "rust1", since = "1.0.0")]
     #[inline]
-    pub fn is_null(self) -> bool {
+    pub fn is_null(self) -> bool where T: Sized {
         self == 0 as *mut T
     }
 
@@ -464,7 +331,7 @@ impl<T: ?Sized> *mut T {
                reason = "Option is not clearly the right return type, and we may want \
                          to tie the return lifetime to a borrow of the raw pointer")]
     #[inline]
-    pub unsafe fn as_ref<'a>(&self) -> Option<&'a T> {
+    pub unsafe fn as_ref<'a>(&self) -> Option<&'a T> where T: Sized {
         if self.is_null() {
             None
         } else {
@@ -497,7 +364,7 @@ impl<T: ?Sized> *mut T {
                reason = "return value does not necessarily convey all possible \
                          information")]
     #[inline]
-    pub unsafe fn as_mut<'a>(&self) -> Option<&'a mut T> {
+    pub unsafe fn as_mut<'a>(&self) -> Option<&'a mut T> where T: Sized {
         if self.is_null() {
             None
         } else {

src/libcore/slice.rs

@@ -49,8 +49,6 @@ use option::Option::{None, Some};
 use result::Result;
 use result::Result::{Ok, Err};
 use ptr;
-#[cfg(stage0)]
-use ptr::PtrExt;
 use mem;
 use mem::size_of;
 use marker::{Send, Sized, Sync, self};

src/libcore/str/mod.rs

@@ -31,8 +31,6 @@ use mem;
 use num::Int;
 use ops::{Fn, FnMut};
 use option::Option::{self, None, Some};
-#[cfg(stage0)]
-use ptr::PtrExt;
 use raw::{Repr, Slice};
 use result::Result::{self, Ok, Err};
 use slice::{self, SliceExt};

src/librustc/middle/check_match.rs

@@ -27,8 +27,6 @@ use middle::ty;
 use std::cmp::Ordering;
 use std::fmt;
 use std::iter::{range_inclusive, AdditiveIterator, FromIterator, IntoIterator, repeat};
-#[cfg(stage0)]
-use std::num::Float;
 use std::slice;
 use syntax::ast::{self, DUMMY_NODE_ID, NodeId, Pat};
 use syntax::ast_util;

src/libserialize/json.rs

@@ -204,8 +204,6 @@ use std::io::prelude::*;
 use std::io;
 use std::mem::{swap};
 use std::num::FpCategory as Fp;
-#[cfg(stage0)]
-use std::num::{Float, Int};
 use std::ops::Index;
 use std::str::FromStr;
 use std::string;

src/libstd/collections/hash/map.rs

@@ -23,8 +23,6 @@ use hash::{Hash, SipHasher};
 use iter::{self, Iterator, ExactSizeIterator, IntoIterator, IteratorExt, FromIterator, Extend, Map};
 use marker::Sized;
 use mem::{self, replace};
-#[cfg(stage0)]
-use num::{Int, UnsignedInt};
 use ops::{Deref, FnMut, Index, IndexMut};
 use option::Option::{self, Some, None};
 use rand::{self, Rng};

src/libstd/collections/hash/table.rs

@@ -19,15 +19,10 @@ use iter::{Iterator, IteratorExt, ExactSizeIterator, count};
 use marker::{Copy, Send, Sync, Sized, self};
 use mem::{min_align_of, size_of};
 use mem;
-#[cfg(stage0)]
-use num::{Int, UnsignedInt};
 use num::wrapping::{OverflowingOps, WrappingOps};
 use ops::{Deref, DerefMut, Drop};
 use option::Option;
 use option::Option::{Some, None};
-#[cfg(stage0)]
-use ptr::{self, PtrExt, Unique};
-#[cfg(not(stage0))]
 use ptr::{self, Unique};
 use rt::heap::{allocate, deallocate, EMPTY};
 use collections::hash_state::HashState;

src/libstd/dynamic_lib.rs

@@ -272,10 +272,6 @@ mod dl {
     use ptr;
     use result::Result;
     use result::Result::{Ok, Err};
-    #[cfg(stage0)]
-    use slice::SliceExt;
-    #[cfg(stage0)]
-    use str::StrExt;
     use str;
     use string::String;
     use vec::Vec;
@@ -294,10 +290,11 @@ mod dl {
                 let err = os::errno();
                 if err as libc::c_int == ERROR_CALL_NOT_IMPLEMENTED {
                     use_thread_mode = false;
-                    // SetThreadErrorMode not found. use fallback solution: SetErrorMode()
+                    // SetThreadErrorMode not found. use fallback solution:
-                    // Note that SetErrorMode is process-wide so this can cause race condition!
+                    // SetErrorMode() Note that SetErrorMode is process-wide so
-                    // However, since even Windows APIs do not care of such problem (#20650),
+                    // this can cause race condition!  However, since even
-                    // we just assume SetErrorMode race is not a great deal.
+                    // Windows APIs do not care of such problem (#20650), we
+                    // just assume SetErrorMode race is not a great deal.
                     prev_error_mode = SetErrorMode(new_error_mode);
                 }
             }

src/libstd/ffi/c_str.rs

@@ -22,12 +22,7 @@ use old_io;
 use ops::Deref;
 use option::Option::{self, Some, None};
 use result::Result::{self, Ok, Err};
-#[cfg(stage0)]
-use slice::{self, SliceExt};
-#[cfg(not(stage0))]
 use slice;
-#[cfg(stage0)]
-use str::StrExt;
 use string::String;
 use vec::Vec;
 

src/libstd/io/mod.rs

@@ -20,18 +20,10 @@ use iter::Iterator;
 use marker::Sized;
 use ops::{Drop, FnOnce};
 use option::Option::{self, Some, None};
-#[cfg(stage0)]
-use ptr::PtrExt;
 use result::Result::{Ok, Err};
 use result;
-#[cfg(stage0)]
-use slice::{self, SliceExt};
-#[cfg(not(stage0))]
 use slice;
 use string::String;
-#[cfg(stage0)]
-use str::{self, StrExt};
-#[cfg(not(stage0))]
 use str;
 use vec::Vec;
 

src/libstd/num/f32.rs

@@ -357,7 +357,6 @@ impl Float for f32 {
     }
 }
 
-#[cfg(not(stage0))]
 #[cfg(not(test))]
 #[lang = "f32"]
 #[stable(feature = "rust1", since = "1.0.0")]

src/libstd/num/f64.rs

@@ -366,7 +366,6 @@ impl Float for f64 {
     }
 }
 
-#[cfg(not(stage0))]
 #[cfg(not(test))]
 #[lang = "f64"]
 #[stable(feature = "rust1", since = "1.0.0")]

src/libstd/num/float_macros.rs

@@ -11,17 +11,6 @@
 #![unstable(feature = "std_misc")]
 #![doc(hidden)]
 
-#[cfg(stage0)]
-macro_rules! assert_approx_eq {
-    ($a:expr, $b:expr) => ({
-        use num::Float;
-        let (a, b) = (&$a, &$b);
-        assert!((*a - *b).abs() < 1.0e-6,
-                "{} is not approximately equal to {}", *a, *b);
-    })
-}
-
-#[cfg(not(stage0))]
 macro_rules! assert_approx_eq {
     ($a:expr, $b:expr) => ({
         let (a, b) = (&$a, &$b);

src/libstd/num/mod.rs

@@ -23,9 +23,6 @@ use marker::Copy;
 use clone::Clone;
 use cmp::{PartialOrd, PartialEq};
 
-#[cfg(stage0)]
-pub use core::num::{Int, SignedInt, UnsignedInt};
-#[cfg(not(stage0))]
 pub use core::num::{Int, SignedInt};
 pub use core::num::{cast, FromPrimitive, NumCast, ToPrimitive};
 pub use core::num::{from_int, from_i8, from_i16, from_i32, from_i64};

src/libstd/num/strconv.rs

@@ -16,17 +16,10 @@ use self::ExponentFormat::*;
 use self::SignificantDigits::*;
 use self::SignFormat::*;
 
-#[cfg(stage0)]
-use char::{self, CharExt};
-#[cfg(not(stage0))]
 use char;
 use num::{self, Int, Float, ToPrimitive};
 use num::FpCategory as Fp;
 use ops::FnMut;
-#[cfg(stage0)]
-use slice::SliceExt;
-#[cfg(stage0)]
-use str::StrExt;
 use string::String;
 use vec::Vec;
 

src/libstd/old_io/buffered.rs

@@ -20,8 +20,6 @@ use ops::Drop;
 use option::Option;
 use option::Option::{Some, None};
 use result::Result::Ok;
-#[cfg(stage0)]
-use slice::{SliceExt};
 use slice;
 use vec::Vec;
 

src/libstd/old_io/comm_adapters.rs

@@ -14,9 +14,6 @@ use sync::mpsc::{Sender, Receiver};
 use old_io;
 use option::Option::{None, Some};
 use result::Result::{Ok, Err};
-#[cfg(stage0)]
-use slice::{bytes, SliceExt};
-#[cfg(not(stage0))]
 use slice::bytes;
 use super::{Buffer, Reader, Writer, IoResult};
 use vec::Vec;

src/libstd/old_io/extensions.rs

@@ -26,11 +26,7 @@ use num::Int;
 use ops::FnOnce;
 use option::Option;
 use option::Option::{Some, None};
-#[cfg(stage0)]
-use ptr::PtrExt;
 use result::Result::{Ok, Err};
-#[cfg(stage0)]
-use slice::SliceExt;
 
 /// An iterator that reads a single byte on each iteration,
 /// until `.read_byte()` returns `EndOfFile`.
@@ -164,8 +160,6 @@ pub fn u64_to_be_bytes<T, F>(n: u64, size: uint, f: F) -> T where
 ///           32-bit value is parsed.
 pub fn u64_from_be_bytes(data: &[u8], start: uint, size: uint) -> u64 {
     use ptr::{copy_nonoverlapping_memory};
-    #[cfg(stage0)]
-    use slice::SliceExt;
 
     assert!(size <= 8);
 

src/libstd/old_io/fs.rs

@@ -64,8 +64,6 @@ use option::Option::{Some, None};
 use old_path::{Path, GenericPath};
 use old_path;
 use result::Result::{Err, Ok};
-#[cfg(stage0)]
-use slice::SliceExt;
 use string::String;
 use vec::Vec;
 

src/libstd/old_io/mem.rs

@@ -17,9 +17,6 @@ use option::Option::None;
 use result::Result::{Err, Ok};
 use old_io;
 use old_io::{Reader, Writer, Seek, Buffer, IoError, SeekStyle, IoResult};
-#[cfg(stage0)]
-use slice::{self, SliceExt};
-#[cfg(not(stage0))]
 use slice;
 use vec::Vec;
 

src/libstd/old_io/mod.rs

@@ -251,8 +251,6 @@ pub use self::FileMode::*;
 pub use self::FileAccess::*;
 pub use self::IoErrorKind::*;
 
-#[cfg(stage0)]
-use char::CharExt;
 use default::Default;
 use error::Error;
 use fmt;
@@ -268,10 +266,6 @@ use boxed::Box;
 use result::Result;
 use result::Result::{Ok, Err};
 use sys;
-#[cfg(stage0)]
-use slice::SliceExt;
-#[cfg(stage0)]
-use str::StrExt;
 use str;
 use string::String;
 use usize;
@@ -935,8 +929,6 @@ impl<'a> Reader for &'a mut (Reader+'a) {
 // API yet. If so, it should be a method on Vec.
 unsafe fn slice_vec_capacity<'a, T>(v: &'a mut Vec<T>, start: uint, end: uint) -> &'a mut [T] {
     use slice;
-    #[cfg(stage0)]
-    use ptr::PtrExt;
 
     assert!(start <= end);
     assert!(end <= v.capacity());

src/libstd/old_io/net/ip.rs

@@ -26,11 +26,6 @@ use ops::{FnOnce, FnMut};
 use option::Option;
 use option::Option::{None, Some};
 use result::Result::{self, Ok, Err};
-#[cfg(stage0)]
-use slice::SliceExt;
-#[cfg(stage0)]
-use str::{FromStr, StrExt};
-#[cfg(not(stage0))]
 use str::FromStr;
 use vec::Vec;
 

src/libstd/old_io/stdio.rs

@@ -43,10 +43,6 @@ use ops::{Deref, DerefMut, FnOnce};
 use ptr;
 use result::Result::{Ok, Err};
 use rt;
-#[cfg(stage0)]
-use slice::SliceExt;
-#[cfg(stage0)]
-use str::StrExt;
 use string::String;
 use sys::{fs, tty};
 use sync::{Arc, Mutex, MutexGuard, Once, ONCE_INIT};

src/libstd/old_io/tempfile.rs

@@ -21,8 +21,6 @@ use option::Option;
 use old_path::{Path, GenericPath};
 use rand::{Rng, thread_rng};
 use result::Result::{Ok, Err};
-#[cfg(stage0)]
-use str::StrExt;
 use string::String;
 
 /// A wrapper for a path to temporary directory implementing automatic

src/libstd/old_path/mod.rs

@@ -72,11 +72,7 @@ use iter::IteratorExt;
 use option::Option;
 use option::Option::{None, Some};
 use str;
-#[cfg(stage0)]
-use str::StrExt;
 use string::{String, CowString};
-#[cfg(stage0)]
-use slice::SliceExt;
 use vec::Vec;
 
 /// Typedef for POSIX file paths.

src/libstd/old_path/posix.rs

@@ -20,13 +20,7 @@ use iter::{Iterator, IteratorExt, Map};
 use marker::Sized;
 use option::Option::{self, Some, None};
 use result::Result::{self, Ok, Err};
-#[cfg(stage0)]
-use slice::{AsSlice, Split, SliceExt, SliceConcatExt};
-#[cfg(not(stage0))]
 use slice::{AsSlice, Split, SliceConcatExt};
-#[cfg(stage0)]
-use str::{self, FromStr, StrExt};
-#[cfg(not(stage0))]
 use str::{self, FromStr};
 use vec::Vec;
 

src/libstd/old_path/windows.rs

@@ -15,8 +15,6 @@
 use self::PathPrefix::*;
 
 use ascii::AsciiExt;
-#[cfg(stage0)]
-use char::CharExt;
 use clone::Clone;
 use cmp::{Ordering, Eq, Ord, PartialEq, PartialOrd};
 use fmt;
@@ -27,13 +25,7 @@ use iter::{Iterator, IteratorExt, Map, repeat};
 use mem;
 use option::Option::{self, Some, None};
 use result::Result::{self, Ok, Err};
-#[cfg(stage0)]
-use slice::{SliceExt, SliceConcatExt};
-#[cfg(not(stage0))]
 use slice::SliceConcatExt;
-#[cfg(stage0)]
-use str::{SplitTerminator, FromStr, StrExt};
-#[cfg(not(stage0))]
 use str::{SplitTerminator, FromStr};
 use string::{String, ToString};
 use vec::Vec;

src/libstd/os.rs

@@ -52,18 +52,10 @@ use option::Option::{Some, None};
 use option::Option;
 use old_path::{Path, GenericPath, BytesContainer};
 use path::{self, PathBuf};
-#[cfg(stage0)]
-use ptr::PtrExt;
 use ptr;
 use result::Result::{Err, Ok};
 use result::Result;
-#[cfg(stage0)]
-use slice::{AsSlice, SliceExt};
-#[cfg(not(stage0))]
 use slice::AsSlice;
-#[cfg(stage0)]
-use str::{Str, StrExt};
-#[cfg(not(stage0))]
 use str::Str;
 use str;
 use string::{String, ToString};

src/libstd/path.rs

@@ -159,8 +159,6 @@ mod platform {
     use core::prelude::*;
     use ascii::*;
 
-    #[cfg(stage0)]
-    use char::CharExt as UnicodeCharExt;
     use super::{os_str_as_u8_slice, u8_slice_as_os_str, Prefix};
     use ffi::OsStr;
 

src/libstd/prelude/v1.rs

@@ -25,9 +25,6 @@
 // Reexported types and traits
 #[stable(feature = "rust1", since = "1.0.0")]
 #[doc(no_inline)] pub use boxed::Box;
-#[cfg(stage0)]
-#[stable(feature = "rust1", since = "1.0.0")]
-#[doc(no_inline)] pub use char::CharExt;
 #[stable(feature = "rust1", since = "1.0.0")]
 #[doc(no_inline)] pub use clone::Clone;
 #[stable(feature = "rust1", since = "1.0.0")]
@@ -40,21 +37,10 @@
 #[doc(no_inline)] pub use iter::{Iterator, IteratorExt, Extend};
 #[stable(feature = "rust1", since = "1.0.0")]
 #[doc(no_inline)] pub use option::Option::{self, Some, None};
-#[cfg(stage0)]
-#[stable(feature = "rust1", since = "1.0.0")]
-#[doc(no_inline)] pub use ptr::{PtrExt, MutPtrExt};
 #[stable(feature = "rust1", since = "1.0.0")]
 #[doc(no_inline)] pub use result::Result::{self, Ok, Err};
-#[cfg(stage0)]
-#[stable(feature = "rust1", since = "1.0.0")]
-#[doc(no_inline)] pub use slice::{SliceExt, SliceConcatExt, AsSlice};
-#[cfg(not(stage0))]
 #[stable(feature = "rust1", since = "1.0.0")]
 #[doc(no_inline)] pub use slice::{SliceConcatExt, AsSlice};
-#[cfg(stage0)]
-#[stable(feature = "rust1", since = "1.0.0")]
-#[doc(no_inline)] pub use str::{Str, StrExt};
-#[cfg(not(stage0))]
 #[stable(feature = "rust1", since = "1.0.0")]
 #[doc(no_inline)] pub use str::Str;
 #[stable(feature = "rust1", since = "1.0.0")]

src/libstd/rand/os.rs

@@ -24,8 +24,6 @@ mod imp {
     use rand::Rng;
     use rand::reader::ReaderRng;
     use result::Result::Ok;
-    #[cfg(stage0)]
-    use slice::SliceExt;
     use mem;
     use os::errno;
 
@@ -194,8 +192,6 @@ mod imp {
     use rand::Rng;
     use result::Result::{Ok};
     use self::libc::{c_int, size_t};
-    #[cfg(stage0)]
-    use slice::SliceExt;
 
     /// A random number generator that retrieves randomness straight from
     /// the operating system. Platform sources:
@@ -265,8 +261,6 @@ mod imp {
     use result::Result::{Ok, Err};
     use self::libc::{DWORD, BYTE, LPCSTR, BOOL};
     use self::libc::types::os::arch::extra::{LONG_PTR};
-    #[cfg(stage0)]
-    use slice::SliceExt;
 
     type HCRYPTPROV = LONG_PTR;
 

src/libstd/rand/reader.rs

@@ -13,8 +13,6 @@
 use old_io::Reader;
 use rand::Rng;
 use result::Result::{Ok, Err};
-#[cfg(stage0)]
-use slice::SliceExt;
 
 /// An RNG that reads random bytes straight from a `Reader`. This will
 /// work best with an infinite reader, but this is not required.

src/libstd/rt/at_exit_imp.rs

@@ -12,9 +12,6 @@
 //!
 //! Documentation can be found on the `rt::at_exit` function.
 
-#[cfg(stage0)]
-use core::prelude::*;
-
 use boxed;
 use boxed::Box;
 use vec::Vec;

src/libstd/sys/common/wtf8.rs

@@ -172,18 +172,6 @@ impl Wtf8Buf {
         Wtf8Buf { bytes: string.into_bytes() }
     }
 
-    #[cfg(stage0)]
-    /// Create a WTF-8 string from an UTF-8 `&str` slice.
-    ///
-    /// This copies the content of the slice.
-    ///
-    /// Since WTF-8 is a superset of UTF-8, this always succeeds.
-    #[inline]
-    pub fn from_str(str: &str) -> Wtf8Buf {
-        Wtf8Buf { bytes: slice::SliceExt::to_vec(str.as_bytes()) }
-    }
-
-    #[cfg(not(stage0))]
     /// Create a WTF-8 string from an UTF-8 `&str` slice.
     ///
     /// This copies the content of the slice.

src/libstd/sys/unix/os_str.rs

@@ -16,8 +16,6 @@ use core::prelude::*;
 use borrow::Cow;
 use fmt::{self, Debug};
 use vec::Vec;
-#[cfg(stage0)]
-use slice::SliceExt as StdSliceExt;
 use str;
 use string::String;
 use mem;

src/libstd/sys/windows/process2.rs

@@ -128,8 +128,6 @@ impl Process {
         use env::split_paths;
         use mem;
         use iter::IteratorExt;
-        #[cfg(stage0)]
-        use str::StrExt;
 
         // To have the spawning semantics of unix/windows stay the same, we need to
         // read the *child's* PATH if one is provided. See #15149 for more details.

src/libsyntax/parse/parser.rs

@@ -78,8 +78,6 @@ use owned_slice::OwnedSlice;
 use std::collections::HashSet;
 use std::io::prelude::*;
 use std::mem;
-#[cfg(stage0)]
-use std::num::Float;
 use std::path::{Path, PathBuf};
 use std::rc::Rc;
 use std::slice;
@@ -5809,12 +5807,6 @@ impl<'a> Parser<'a> {
         None
     }
 
-    // HACK(eddyb) staging required for `quote_item!`.
-    #[cfg(stage0)] // SNAP 270a677
-    pub fn parse_item_with_outer_attributes(&mut self) -> Option<P<Item>> {
-        self.parse_item()
-    }
-
     pub fn parse_item(&mut self) -> Option<P<Item>> {
         let attrs = self.parse_outer_attributes();
         self.parse_item_(attrs, true)

src/libunicode/char.rs

@@ -41,413 +41,6 @@ pub use normalize::{decompose_canonical, decompose_compatible, compose};
 pub use tables::normalization::canonical_combining_class;
 pub use tables::UNICODE_VERSION;
 
-#[cfg(stage0)]
-/// Functionality for manipulating `char`.
-#[stable(feature = "rust1", since = "1.0.0")]
-pub trait CharExt {
-    /// Checks if a `char` parses as a numeric digit in the given radix.
-    ///
-    /// Compared to `is_numeric()`, this function only recognizes the characters
-    /// `0-9`, `a-z` and `A-Z`.
-    ///
-    /// # Return value
-    ///
-    /// Returns `true` if `c` is a valid digit under `radix`, and `false`
-    /// otherwise.
-    ///
-    /// # Panics
-    ///
-    /// Panics if given a radix > 36.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// let c = '1';
-    ///
-    /// assert!(c.is_digit(10));
-    ///
-    /// assert!('f'.is_digit(16));
-    /// ```
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_digit(self, radix: u32) -> bool;
-
-    /// Converts a character to the corresponding digit.
-    ///
-    /// # Return value
-    ///
-    /// If `c` is between '0' and '9', the corresponding value between 0 and
-    /// 9. If `c` is 'a' or 'A', 10. If `c` is 'b' or 'B', 11, etc. Returns
-    /// none if the character does not refer to a digit in the given radix.
-    ///
-    /// # Panics
-    ///
-    /// Panics if given a radix outside the range [0..36].
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// let c = '1';
-    ///
-    /// assert_eq!(c.to_digit(10), Some(1));
-    ///
-    /// assert_eq!('f'.to_digit(16), Some(15));
-    /// ```
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn to_digit(self, radix: u32) -> Option<u32>;
-
-    /// Returns an iterator that yields the hexadecimal Unicode escape of a
-    /// character, as `char`s.
-    ///
-    /// All characters are escaped with Rust syntax of the form `\\u{NNNN}`
-    /// where `NNNN` is the shortest hexadecimal representation of the code
-    /// point.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// for i in '❤'.escape_unicode() {
-    ///     println!("{}", i);
-    /// }
-    /// ```
-    ///
-    /// This prints:
-    ///
-    /// ```text
-    /// \
-    /// u
-    /// {
-    /// 2
-    /// 7
-    /// 6
-    /// 4
-    /// }
-    /// ```
-    ///
-    /// Collecting into a `String`:
-    ///
-    /// ```
-    /// let heart: String = '❤'.escape_unicode().collect();
-    ///
-    /// assert_eq!(heart, r"\u{2764}");
-    /// ```
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn escape_unicode(self) -> EscapeUnicode;
-
-    /// Returns an iterator that yields the 'default' ASCII and
-    /// C++11-like literal escape of a character, as `char`s.
-    ///
-    /// The default is chosen with a bias toward producing literals that are
-    /// legal in a variety of languages, including C++11 and similar C-family
-    /// languages. The exact rules are:
-    ///
-    /// * Tab, CR and LF are escaped as '\t', '\r' and '\n' respectively.
-    /// * Single-quote, double-quote and backslash chars are backslash-
-    ///   escaped.
-    /// * Any other chars in the range [0x20,0x7e] are not escaped.
-    /// * Any other chars are given hex Unicode escapes; see `escape_unicode`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// for i in '"'.escape_default() {
-    ///     println!("{}", i);
-    /// }
-    /// ```
-    ///
-    /// This prints:
-    ///
-    /// ```text
-    /// \
-    /// "
-    /// ```
-    ///
-    /// Collecting into a `String`:
-    ///
-    /// ```
-    /// let quote: String = '"'.escape_default().collect();
-    ///
-    /// assert_eq!(quote, "\\\"");
-    /// ```
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn escape_default(self) -> EscapeDefault;
-
-    /// Returns the number of bytes this character would need if encoded in
-    /// UTF-8.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// let n = 'ß'.len_utf8();
-    ///
-    /// assert_eq!(n, 2);
-    /// ```
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn len_utf8(self) -> usize;
-
-    /// Returns the number of 16-bit code units this character would need if
-    /// encoded in UTF-16.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// let n = 'ß'.len_utf16();
-    ///
-    /// assert_eq!(n, 1);
-    /// ```
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn len_utf16(self) -> usize;
-
-    /// Encodes this character as UTF-8 into the provided byte buffer, and then
-    /// returns the number of bytes written.
-    ///
-    /// If the buffer is not large enough, nothing will be written into it and a
-    /// `None` will be returned. A buffer of length four is large enough to
-    /// encode any `char`.
-    ///
-    /// # Examples
-    ///
-    /// In both of these examples, 'ß' takes two bytes to encode.
-    ///
-    /// ```
-    /// let mut b = [0; 2];
-    ///
-    /// let result = 'ß'.encode_utf8(&mut b);
-    ///
-    /// assert_eq!(result, Some(2));
-    /// ```
-    ///
-    /// A buffer that's too small:
-    ///
-    /// ```
-    /// let mut b = [0; 1];
-    ///
-    /// let result = 'ß'.encode_utf8(&mut b);
-    ///
-    /// assert_eq!(result, None);
-    /// ```
-    #[unstable(feature = "unicode",
-               reason = "pending decision about Iterator/Writer/Reader")]
-    fn encode_utf8(self, dst: &mut [u8]) -> Option<usize>;
-
-    /// Encodes this character as UTF-16 into the provided `u16` buffer, and
-    /// then returns the number of `u16`s written.
-    ///
-    /// If the buffer is not large enough, nothing will be written into it and a
-    /// `None` will be returned. A buffer of length 2 is large enough to encode
-    /// any `char`.
-    ///
-    /// # Examples
-    ///
-    /// In both of these examples, 'ß' takes one `u16` to encode.
-    ///
-    /// ```
-    /// let mut b = [0; 1];
-    ///
-    /// let result = 'ß'.encode_utf16(&mut b);
-    ///
-    /// assert_eq!(result, Some(1));
-    /// ```
-    ///
-    /// A buffer that's too small:
-    ///
-    /// ```
-    /// let mut b = [0; 0];
-    ///
-    /// let result = 'ß'.encode_utf8(&mut b);
-    ///
-    /// assert_eq!(result, None);
-    /// ```
-    #[unstable(feature = "unicode",
-               reason = "pending decision about Iterator/Writer/Reader")]
-    fn encode_utf16(self, dst: &mut [u16]) -> Option<usize>;
-
-    /// Returns whether the specified character is considered a Unicode
-    /// alphabetic code point.
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_alphabetic(self) -> bool;
-
-    /// Returns whether the specified character satisfies the 'XID_Start'
-    /// Unicode property.
-    ///
-    /// 'XID_Start' is a Unicode Derived Property specified in
-    /// [UAX #31](http://unicode.org/reports/tr31/#NFKC_Modifications),
-    /// mostly similar to ID_Start but modified for closure under NFKx.
-    #[unstable(feature = "unicode",
-               reason = "mainly needed for compiler internals")]
-    fn is_xid_start(self) -> bool;
-
-    /// Returns whether the specified `char` satisfies the 'XID_Continue'
-    /// Unicode property.
-    ///
-    /// 'XID_Continue' is a Unicode Derived Property specified in
-    /// [UAX #31](http://unicode.org/reports/tr31/#NFKC_Modifications),
-    /// mostly similar to 'ID_Continue' but modified for closure under NFKx.
-    #[unstable(feature = "unicode",
-               reason = "mainly needed for compiler internals")]
-    fn is_xid_continue(self) -> bool;
-
-    /// Indicates whether a character is in lowercase.
-    ///
-    /// This is defined according to the terms of the Unicode Derived Core
-    /// Property `Lowercase`.
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_lowercase(self) -> bool;
-
-    /// Indicates whether a character is in uppercase.
-    ///
-    /// This is defined according to the terms of the Unicode Derived Core
-    /// Property `Uppercase`.
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_uppercase(self) -> bool;
-
-    /// Indicates whether a character is whitespace.
-    ///
-    /// Whitespace is defined in terms of the Unicode Property `White_Space`.
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_whitespace(self) -> bool;
-
-    /// Indicates whether a character is alphanumeric.
-    ///
-    /// Alphanumericness is defined in terms of the Unicode General Categories
-    /// 'Nd', 'Nl', 'No' and the Derived Core Property 'Alphabetic'.
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_alphanumeric(self) -> bool;
-
-    /// Indicates whether a character is a control code point.
-    ///
-    /// Control code points are defined in terms of the Unicode General
-    /// Category `Cc`.
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_control(self) -> bool;
-
-    /// Indicates whether the character is numeric (Nd, Nl, or No).
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn is_numeric(self) -> bool;
-
-    /// Converts a character to its lowercase equivalent.
-    ///
-    /// The case-folding performed is the common or simple mapping. See
-    /// `to_uppercase()` for references and more information.
-    ///
-    /// # Return value
-    ///
-    /// Returns an iterator which yields the characters corresponding to the
-    /// lowercase equivalent of the character. If no conversion is possible then
-    /// the input character is returned.
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn to_lowercase(self) -> ToLowercase;
-
-    /// Converts a character to its uppercase equivalent.
-    ///
-    /// The case-folding performed is the common or simple mapping: it maps
-    /// one Unicode codepoint to its uppercase equivalent according to the
-    /// Unicode database [1]. The additional [`SpecialCasing.txt`] is not yet
-    /// considered here, but the iterator returned will soon support this form
-    /// of case folding.
-    ///
-    /// A full reference can be found here [2].
-    ///
-    /// # Return value
-    ///
-    /// Returns an iterator which yields the characters corresponding to the
-    /// uppercase equivalent of the character. If no conversion is possible then
-    /// the input character is returned.
-    ///
-    /// [1]: ftp://ftp.unicode.org/Public/UNIDATA/UnicodeData.txt
-    ///
-    /// [`SpecialCasing`.txt`]: ftp://ftp.unicode.org/Public/UNIDATA/SpecialCasing.txt
-    ///
-    /// [2]: http://www.unicode.org/versions/Unicode4.0.0/ch03.pdf#G33992
-    #[stable(feature = "rust1", since = "1.0.0")]
-    fn to_uppercase(self) -> ToUppercase;
-
-    /// Returns this character's displayed width in columns, or `None` if it is a
-    /// control character other than `'\x00'`.
-    ///
-    /// `is_cjk` determines behavior for characters in the Ambiguous category:
-    /// if `is_cjk` is `true`, these are 2 columns wide; otherwise, they are 1.
-    /// In CJK contexts, `is_cjk` should be `true`, else it should be `false`.
-    /// [Unicode Standard Annex #11](http://www.unicode.org/reports/tr11/)
-    /// recommends that these characters be treated as 1 column (i.e.,
-    /// `is_cjk` = `false`) if the context cannot be reliably determined.
-    #[unstable(feature = "unicode",
-               reason = "needs expert opinion. is_cjk flag stands out as ugly")]
-    fn width(self, is_cjk: bool) -> Option<usize>;
-}
-
-#[cfg(stage0)]
-#[stable(feature = "rust1", since = "1.0.0")]
-impl CharExt for char {
-    fn is_digit(self, radix: u32) -> bool { C::is_digit(self, radix) }
-    fn to_digit(self, radix: u32) -> Option<u32> { C::to_digit(self, radix) }
-    fn escape_unicode(self) -> EscapeUnicode { C::escape_unicode(self) }
-    fn escape_default(self) -> EscapeDefault { C::escape_default(self) }
-    fn len_utf8(self) -> usize { C::len_utf8(self) }
-    fn len_utf16(self) -> usize { C::len_utf16(self) }
-    fn encode_utf8(self, dst: &mut [u8]) -> Option<usize> { C::encode_utf8(self, dst) }
-    fn encode_utf16(self, dst: &mut [u16]) -> Option<usize> { C::encode_utf16(self, dst) }
-
-    fn is_alphabetic(self) -> bool {
-        match self {
-            'a' ... 'z' | 'A' ... 'Z' => true,
-            c if c > '\x7f' => derived_property::Alphabetic(c),
-            _ => false
-        }
-    }
-
-    fn is_xid_start(self) -> bool { derived_property::XID_Start(self) }
-
-    fn is_xid_continue(self) -> bool { derived_property::XID_Continue(self) }
-
-    fn is_lowercase(self) -> bool {
-        match self {
-            'a' ... 'z' => true,
-            c if c > '\x7f' => derived_property::Lowercase(c),
-            _ => false
-        }
-    }
-
-    fn is_uppercase(self) -> bool {
-        match self {
-            'A' ... 'Z' => true,
-            c if c > '\x7f' => derived_property::Uppercase(c),
-            _ => false
-        }
-    }
-
-    fn is_whitespace(self) -> bool {
-        match self {
-            ' ' | '\x09' ... '\x0d' => true,
-            c if c > '\x7f' => property::White_Space(c),
-            _ => false
-        }
-    }
-
-    fn is_alphanumeric(self) -> bool {
-        self.is_alphabetic() || self.is_numeric()
-    }
-
-    fn is_control(self) -> bool { general_category::Cc(self) }
-
-    fn is_numeric(self) -> bool {
-        match self {
-            '0' ... '9' => true,
-            c if c > '\x7f' => general_category::N(c),
-            _ => false
-        }
-    }
-
-    fn to_lowercase(self) -> ToLowercase {
-        ToLowercase(Some(conversions::to_lower(self)))
-    }
-
-    fn to_uppercase(self) -> ToUppercase {
-        ToUppercase(Some(conversions::to_upper(self)))
-    }
-
-    fn width(self, is_cjk: bool) -> Option<usize> { charwidth::width(self, is_cjk) }
-}
-
 /// An iterator over the lowercase mapping of a given character, returned from
 /// the `lowercase` method on characters.
 #[stable(feature = "rust1", since = "1.0.0")]
@@ -470,7 +63,6 @@ impl Iterator for ToUppercase {
     fn next(&mut self) -> Option<char> { self.0.take() }
 }
 
-#[cfg(not(stage0))]
 #[stable(feature = "rust1", since = "1.0.0")]
 #[lang = "char"]
 impl char {

src/libunicode/u_str.rs

@@ -26,8 +26,6 @@ use core::num::Int;
 use core::slice;
 use core::str::Split;
 
-#[cfg(stage0)]
-use char::CharExt as UCharExt; // conflicts with core::prelude::CharExt
 use tables::grapheme::GraphemeCat;
 
 /// An iterator over the words of a string, separated by a sequence of whitespace
@@ -244,7 +242,7 @@ impl<'a> Iterator for Graphemes<'a> {
         }
 
         self.cat = if take_curr {
-            idx = idx + len_utf8(self.string.char_at(idx));
+            idx = idx + self.string.char_at(idx).len_utf8();
             None
         } else {
             Some(cat)
@@ -256,11 +254,6 @@ impl<'a> Iterator for Graphemes<'a> {
     }
 }
 
-#[cfg(stage0)]
-fn len_utf8(c: char) -> usize { UCharExt::len_utf8(c) }
-#[cfg(not(stage0))]
-fn len_utf8(c: char) -> usize { c.len_utf8() }
-
 impl<'a> DoubleEndedIterator for Graphemes<'a> {
     #[inline]
     fn next_back(&mut self) -> Option<&'a str> {

src/rustbook/main.rs

@@ -14,6 +14,7 @@
 #![feature(exit_status)]
 #![feature(rustdoc)]
 #![feature(rustc_private)]
+#![feature(path_relative_from)]
 
 extern crate rustdoc;
 extern crate rustc_back;

src/snapshots.txt

@@ -1,3 +1,13 @@
+S 2015-03-17 c64d671
+  bitrig-x86_64 4b2f11a96b1b5b3782d74bda707aca33bc179880
+  freebsd-x86_64 14ced24e1339a4dd8baa9db69995daa52a948d54
+  linux-i386 200450ad3cc56bc715ca105b9acae35204bf7351
+  linux-x86_64 a54f50fee722ba6bc7281dec3e4d5121af7c15e3
+  macos-i386 e33fd692f3808a0265e7b02fbc40e403080cdd4f
+  macos-x86_64 9a89ed364ae71aeb9d659ad223eae5f5986fc03f
+  winnt-i386 8911a28581e490d413b56467a6184545633ca04a
+  winnt-x86_64 38ce4556b19472c23ccce28685e3a2ebefb9bfbc
+
 S 2015-03-07 270a677
   bitrig-x86_64 4b2f11a96b1b5b3782d74bda707aca33bc179880
   freebsd-x86_64 3c147d8e4cfdcb02c2569f5aca689a1d8920d17b