---

yaml
---
r: 195695
b: refs/heads/auto
c: fe8a660
h: refs/heads/master
i:
  195693: d18e311
  195691: b7393f2
  195687: 8e5524a
  195679: 3758818
v: v3

Author: steveklabnik

[refs]

@@ -10,7 +10,7 @@ refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503
 refs/tags/release-0.3.1: 495bae036dfe5ec6ceafd3312b4dca48741e845b
 refs/tags/release-0.4: e828ea2080499553b97dfe33b3f4d472b4562ad7
 refs/tags/release-0.5: 7e3bcfbf21278251ee936ad53e92e9b719702d73
-refs/heads/auto: 095f1fbde661c4de6dc96fd2e9753b084b66f34a
+refs/heads/auto: fe8a66040742f9acd26e5b932550cc0e5d853445
 refs/heads/servo: af82457af293e2a842ba6b7759b70288da276167
 refs/tags/release-0.6: b4ebcfa1812664df5e142f0134a5faea3918544c
 refs/tags/0.1: b19db808c2793fe2976759b85a355c3ad8c8b336

branches/auto/mk/crates.mk

@@ -125,18 +125,13 @@ ONLY_RLIB_rustc_bitflags := 1
 # On channels where the only usable crate is std, only build documentation for
 # std. This keeps distributions small and doesn't clutter up the API docs with
 # confusing internal details from the crates behind the facade.
-#
-# (Disabled while cmr figures out how to change rustdoc to make reexports work
-# slightly nicer. Otherwise, all cross-crate links to Vec will go to
-# libcollections, breaking them, and [src] links for anything reexported will
-# not work.)
 
-#ifeq ($(CFG_RELEASE_CHANNEL),stable)
-#DOC_CRATES := std
-#else
-#ifeq ($(CFG_RELEASE_CHANNEL),beta)
-#DOC_CRATES := std
-#else
+ifeq ($(CFG_RELEASE_CHANNEL),stable)
+DOC_CRATES := std
+else
+ifeq ($(CFG_RELEASE_CHANNEL),beta)
+DOC_CRATES := std
+else
 DOC_CRATES := $(filter-out rustc, \
 	   $(filter-out rustc_trans, \
 	   $(filter-out rustc_typeck, \
@@ -148,8 +143,8 @@ DOC_CRATES := $(filter-out rustc, \
 	   $(filter-out log, \
 	   $(filter-out getopts, \
 	   $(filter-out syntax, $(CRATES))))))))))))
-#endif
-#endif
+endif
+endif
 COMPILER_DOC_CRATES := rustc rustc_trans rustc_borrowck rustc_resolve \
                        rustc_typeck rustc_driver syntax rustc_privacy \
                        rustc_lint

branches/auto/src/doc/reference.md

@@ -1188,15 +1188,12 @@ the guarantee that these issues are never caused by safe code.
 
 * Data races
 * Dereferencing a null/dangling raw pointer
+* Mutating an immutable value/reference without `UnsafeCell`
 * Reads of [undef](http://llvm.org/docs/LangRef.html#undefined-values)
   (uninitialized) memory
 * Breaking the [pointer aliasing
   rules](http://llvm.org/docs/LangRef.html#pointer-aliasing-rules)
   with raw pointers (a subset of the rules used by C)
-* `&mut` and `&` follow LLVM’s scoped [noalias] model, except if the `&T`
-  contains an `UnsafeCell<U>`. Unsafe code must not violate these aliasing
-  guarantees.
-* Mutating an immutable value/reference without `UnsafeCell<U>`
 * Invoking undefined behavior via compiler intrinsics:
   * Indexing outside of the bounds of an object with `std::ptr::offset`
     (`offset` intrinsic), with
@@ -1213,8 +1210,6 @@ the guarantee that these issues are never caused by safe code.
   code. Rust's failure system is not compatible with exception handling in
   other languages. Unwinding must be caught and handled at FFI boundaries.
 
-[noalias]: http://llvm.org/docs/LangRef.html#noalias
-
 ##### Behaviour not considered unsafe
 
 This is a list of behaviour not considered *unsafe* in Rust terms, but that may

branches/auto/src/doc/trpl/method-syntax.md

@@ -181,23 +181,17 @@ impl Circle {
 }
 
 struct CircleBuilder {
-    x: f64,
-    y: f64,
+    coordinate: f64,
     radius: f64,
 }
 
 impl CircleBuilder {
     fn new() -> CircleBuilder {
-        CircleBuilder { x: 0.0, y: 0.0, radius: 0.0, }
-    }
-
-    fn x(&mut self, coordinate: f64) -> &mut CircleBuilder {
-        self.x = coordinate;
-        self
+        CircleBuilder { coordinate: 0.0, radius: 0.0, }
     }
 
-    fn y(&mut self, coordinate: f64) -> &mut CircleBuilder {
-        self.x = coordinate;
+    fn coordinate(&mut self, coordinate: f64) -> &mut CircleBuilder {
+        self.coordinate = coordinate;
         self
     }
 
@@ -207,20 +201,18 @@ impl CircleBuilder {
     }
 
     fn finalize(&self) -> Circle {
-        Circle { x: self.x, y: self.y, radius: self.radius }
+        Circle { x: self.coordinate, y: self.coordinate, radius: self.radius }
     }
 }
 
 fn main() {
     let c = CircleBuilder::new()
-                .x(1.0)
-                .y(2.0)
-                .radius(2.0)
+                .coordinate(10.0)
+                .radius(5.0)
                 .finalize();
 
+
     println!("area: {}", c.area());
-    println!("x: {}", c.x);
-    println!("y: {}", c.y);
 }
 ```
 

branches/auto/src/doc/trpl/ownership.md

@@ -472,15 +472,10 @@ thread-safe counterpart of `Rc<T>`.
 
 ## Lifetime Elision
 
-Rust supports powerful local type inference in function bodies, but it’s
-forbidden in item signatures to allow reasoning about the types just based in
-the item signature alone. However, for ergonomic reasons a very restricted
-secondary inference algorithm called “lifetime elision” applies in function
-signatures. It infers only based on the signature components themselves and not
-based on the body of the function, only infers lifetime paramters, and does
-this with only three easily memorizable and unambiguous rules. This makes
-lifetime elision a shorthand for writing an item signature, while not hiding
-away the actual types involved as full local inference would if applied to it.
+Earlier, we mentioned *lifetime elision*, a feature of Rust which allows you to
+not write lifetime annotations in certain circumstances. All references have a
+lifetime, and so if you elide a lifetime (like `&T` instead of `&'a T`), Rust
+will do three things to determine what those lifetimes should be.
 
 When talking about lifetime elision, we use the term *input lifetime* and
 *output lifetime*. An *input lifetime* is a lifetime associated with a parameter

branches/auto/src/doc/trpl/testing.md

@@ -231,7 +231,7 @@ pub fn add_two(a: i32) -> i32 {
 }
 
 #[cfg(test)]
-mod test {
+mod tests {
     use super::add_two;
 
     #[test]
@@ -241,7 +241,7 @@ mod test {
 }
 ```
 
-There's a few changes here. The first is the introduction of a `mod test` with
+There's a few changes here. The first is the introduction of a `mod tests` with
 a `cfg` attribute. The module allows us to group all of our tests together, and
 to also define helper functions if needed, that don't become a part of the rest
 of our crate. The `cfg` attribute only compiles our test code if we're
@@ -260,7 +260,7 @@ pub fn add_two(a: i32) -> i32 {
 }
 
 #[cfg(test)]
-mod test {
+mod tests {
     use super::*;
 
     #[test]

branches/auto/src/liballoc/boxed.rs

@@ -233,10 +233,24 @@ impl<T: ?Sized + Hash> Hash for Box<T> {
     }
 }
 
-impl Box<Any> {
-    #[inline]
+/// Extension methods for an owning `Any` trait object.
+#[unstable(feature = "alloc",
+           reason = "this trait will likely disappear once compiler bugs blocking \
+                     a direct impl on `Box<Any>` have been fixed ")]
+// FIXME(#18737): this should be a direct impl on `Box<Any>`. If you're
+//                removing this please make sure that you can downcase on
+//                `Box<Any + Send>` as well as `Box<Any>`
+pub trait BoxAny {
+    /// Returns the boxed value if it is of type `T`, or
+    /// `Err(Self)` if it isn't.
     #[stable(feature = "rust1", since = "1.0.0")]
-    pub fn downcast<T: Any>(self) -> Result<Box<T>, Box<Any>> {
+    fn downcast<T: Any>(self) -> Result<Box<T>, Box<Any>>;
+}
+
+#[stable(feature = "rust1", since = "1.0.0")]
+impl BoxAny for Box<Any> {
+    #[inline]
+    fn downcast<T: Any>(self) -> Result<Box<T>, Box<Any>> {
         if self.is::<T>() {
             unsafe {
                 // Get the raw representation of the trait object
@@ -253,10 +267,10 @@ impl Box<Any> {
     }
 }
 
-impl Box<Any+Send> {
+#[stable(feature = "rust1", since = "1.0.0")]
+impl BoxAny for Box<Any+Send> {
     #[inline]
-    #[stable(feature = "rust1", since = "1.0.0")]
-    pub fn downcast<T: Any>(self) -> Result<Box<T>, Box<Any>> {
+    fn downcast<T: Any>(self) -> Result<Box<T>, Box<Any>> {
         <Box<Any>>::downcast(self)
     }
 }

branches/auto/src/liballoc/boxed_test.rs

@@ -17,6 +17,7 @@ use core::clone::Clone;
 
 use std::boxed;
 use std::boxed::Box;
+use std::boxed::BoxAny;
 
 #[test]
 fn test_owned_clone() {

branches/auto/src/liballoc/heap.rs

@@ -189,6 +189,7 @@ mod imp {
     use core::option::Option;
     use core::option::Option::None;
     use core::ptr::{null_mut, null};
+    use core::num::Int;
     use libc::{c_char, c_int, c_void, size_t};
     use super::MIN_ALIGN;
 
@@ -300,7 +301,7 @@ mod imp {
             libc::realloc(ptr as *mut libc::c_void, size as libc::size_t) as *mut u8
         } else {
             let new_ptr = allocate(size, align);
-            ptr::copy(ptr, new_ptr, cmp::min(size, old_size));
+            ptr::copy(new_ptr, ptr, cmp::min(size, old_size));
             deallocate(ptr, old_size, align);
             new_ptr
         }

branches/auto/src/libcollections/bit.rs

@@ -91,6 +91,7 @@ use core::hash;
 use core::iter::RandomAccessIterator;
 use core::iter::{Chain, Enumerate, Repeat, Skip, Take, repeat, Cloned};
 use core::iter::{self, FromIterator, IntoIterator};
+use core::num::Int;
 use core::ops::Index;
 use core::slice;
 use core::{u8, u32, usize};

branches/auto/src/libcollections/borrow.rs

@@ -40,24 +40,6 @@ use self::Cow::*;
 #[stable(feature = "rust1", since = "1.0.0")]
 pub trait Borrow<Borrowed: ?Sized> {
     /// Immutably borrow from an owned value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::borrow::Borrow;
-    ///
-    /// fn check<T: Borrow<str>>(s: T) {
-    ///     assert_eq!("Hello", s.borrow());
-    /// }
-    ///
-    /// let s = "Hello".to_string();
-    ///
-    /// check(s);
-    ///
-    /// let s = "Hello";
-    ///
-    /// check(s);
-    /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
     fn borrow(&self) -> &Borrowed;
 }
@@ -68,20 +50,6 @@ pub trait Borrow<Borrowed: ?Sized> {
 #[stable(feature = "rust1", since = "1.0.0")]
 pub trait BorrowMut<Borrowed: ?Sized> : Borrow<Borrowed> {
     /// Mutably borrow from an owned value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::borrow::BorrowMut;
-    ///
-    /// fn check<T: BorrowMut<[i32]>>(mut v: T) {
-    ///     assert_eq!(&mut [1, 2, 3], v.borrow_mut());
-    /// }
-    ///
-    /// let v = vec![1, 2, 3];
-    ///
-    /// check(v);
-    /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
     fn borrow_mut(&mut self) -> &mut Borrowed;
 }
@@ -203,18 +171,6 @@ impl<'a, B: ?Sized> Cow<'a, B> where B: ToOwned {
     /// Acquire a mutable reference to the owned form of the data.
     ///
     /// Copies the data if it is not already owned.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::borrow::Cow;
-    ///
-    /// let mut cow: Cow<[_]> = Cow::Owned(vec![1, 2, 3]);
-    ///
-    /// let hello = cow.to_mut();
-    ///
-    /// assert_eq!(&[1, 2, 3], hello);
-    /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
     pub fn to_mut(&mut self) -> &mut <B as ToOwned>::Owned {
         match *self {
@@ -229,18 +185,6 @@ impl<'a, B: ?Sized> Cow<'a, B> where B: ToOwned {
     /// Extract the owned data.
     ///
     /// Copies the data if it is not already owned.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::borrow::Cow;
-    ///
-    /// let cow: Cow<[_]> = Cow::Owned(vec![1, 2, 3]);
-    ///
-    /// let hello = cow.into_owned();
-    ///
-    /// assert_eq!(vec![1, 2, 3], hello);
-    /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
     pub fn into_owned(self) -> <B as ToOwned>::Owned {
         match self {