---

yaml
---
r: 212521
b: refs/heads/auto
c: 65eb6c0
h: refs/heads/master
i:
  212519: b44f9d5
v: v3

Author: Manishearth

[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: a6dd8718214fc4fb31bcb8fd8779ce435551200d
+refs/heads/auto: 65eb6c072bfe3d0f5264d99860968f07a1426809
 refs/heads/servo: af82457af293e2a842ba6b7759b70288da276167
 refs/tags/release-0.6: b4ebcfa1812664df5e142f0134a5faea3918544c
 refs/tags/0.1: b19db808c2793fe2976759b85a355c3ad8c8b336

branches/auto/src/compiletest/runtest.rs

@@ -651,7 +651,7 @@ fn run_debuginfo_lldb_test(config: &Config, props: &TestProps, testfile: &Path)
 
     // Write debugger script:
     // We don't want to hang when calling `quit` while the process is still running
-    let mut script_str = String::from_str("settings set auto-confirm true\n");
+    let mut script_str = String::from("settings set auto-confirm true\n");
 
     // Make LLDB emit its version, so we have it documented in the test output
     script_str.push_str("version\n");

branches/auto/src/doc/reference.md

@@ -1038,7 +1038,7 @@ be undesired.
 
 * Deadlocks
 * Reading data from private fields (`std::repr`)
-* Leaks due to reference count cycles, even in the global heap
+* Leaks of memory and other resources
 * Exiting without calling destructors
 * Sending signals
 * Accessing/modifying the file system

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

@@ -33,8 +33,8 @@ let plus_two = |x| {
 assert_eq!(4, plus_two(2));
 ```
 
-You’ll notice a few things about closures that are a bit different than regular
-functions defined with `fn`. The first of which is that we did not need to
+You’ll notice a few things about closures that are a bit different from regular
+functions defined with `fn`. The first is that we did not need to
 annotate the types of arguments the closure takes or the values it returns. We
 can:
 
@@ -48,18 +48,18 @@ But we don’t have to. Why is this? Basically, it was chosen for ergonomic reas
 While specifying the full type for named functions is helpful with things like
 documentation and type inference, the types of closures are rarely documented
 since they’re anonymous, and they don’t cause the kinds of error-at-a-distance
-that inferring named function types can.
+problems that inferring named function types can.
 
 The second is that the syntax is similar, but a bit different. I’ve added spaces
-here to make them look a little closer:
+here for easier comparison:
 
 ```rust
 fn  plus_one_v1   (x: i32) -> i32 { x + 1 }
 let plus_one_v2 = |x: i32| -> i32 { x + 1 };
 let plus_one_v3 = |x: i32|          x + 1  ;
 ```
 
-Small differences, but they’re similar in ways.
+Small differences, but they’re similar.
 
 # Closures and their environment
 
@@ -99,7 +99,7 @@ note: previous borrow ends here
 fn main() {
     let mut num = 5;
     let plus_num = |x| x + num;
-    
+
     let y = &mut num;
 }
 ^
@@ -161,7 +161,7 @@ of `num`. So what’s the difference?
 ```rust
 let mut num = 5;
 
-{ 
+{
     let mut add_num = |x: i32| num += x;
 
     add_num(5);
@@ -180,7 +180,7 @@ If we change to a `move` closure, it’s different:
 ```rust
 let mut num = 5;
 
-{ 
+{
     let mut add_num = move |x: i32| num += x;
 
     add_num(5);

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

@@ -29,6 +29,9 @@ The other kind of comment is a doc comment. Doc comments use `///` instead of
 /// let five = 5;
 ///
 /// assert_eq!(6, add_one(5));
+/// # fn add_one(x: i32) -> i32 {
+/// #     x + 1
+/// # }
 /// ```
 fn add_one(x: i32) -> i32 {
     x + 1

branches/auto/src/doc/trpl/dining-philosophers.md

@@ -432,7 +432,9 @@ an extra annotation, `move`, to indicate that the closure is going to take
 ownership of the values it’s capturing. Primarily, the `p` variable of the
 `map` function.
 
-Inside the thread, all we do is call `eat()` on `p`.
+Inside the thread, all we do is call `eat()` on `p`. Also note that the call to `thread::spawn` lacks a trailing semicolon, making this an expression. This distinction is important, yielding the correct return value. For more details, read [Expressions vs. Statements][es].
+
+[es]: functions.html#expressions-vs.-statements
 
 ```rust,ignore
 }).collect();

branches/auto/src/doc/trpl/error-handling.md

@@ -284,7 +284,7 @@ struct Info {
 }
 
 fn write_info(info: &Info) -> io::Result<()> {
-    let mut file = try!(File::create("my_best_friends.txt"));
+    let mut file = File::create("my_best_friends.txt").unwrap();
 
     try!(writeln!(&mut file, "name: {}", info.name));
     try!(writeln!(&mut file, "age: {}", info.age));

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

@@ -156,6 +156,46 @@ that, just like a move, when we assign `v` to `v2`, a copy of the data is made.
 But, unlike a move, we can still use `v` afterward. This is because an `i32`
 has no pointers to data somewhere else, copying it is a full copy.
 
+All primitive types implement the `Copy` trait and their ownership is
+therefore not moved like one would assume, following the ´ownership rules´.
+To give an example, the two following snippets of code only compile because the 
+`i32` and `bool` types implement the `Copy` trait. 
+
+```rust
+fn main() {
+    let a = 5;
+
+    let _y = double(a);
+    println!("{}", a);
+}
+
+fn double(x: i32) -> i32 {
+    x * 2
+}
+```
+
+```rust
+fn main() {
+    let a = true;
+
+    let _y = change_truth(a);
+    println!("{}", a);
+}
+
+fn change_truth(x: bool) -> bool {
+    !x
+}
+```
+
+If we would have used types that do not implement the `Copy` trait,
+we would have gotten a compile error because we tried to use a moved value.
+
+```text
+error: use of moved value: `a`
+println!("{}", a);
+               ^
+```
+
 We will discuss how to make your own types `Copy` in the [traits][traits]
 section.
 

branches/auto/src/doc/trpl/trait-objects.md

@@ -261,7 +261,7 @@ static Foo_for_String_vtable: FooVtable = FooVtable {
 ```
 
 The `destructor` field in each vtable points to a function that will clean up
-any resources of the vtable’s type, for `u8` it is trivial, but for `String` it
+any resources of the vtable’s type: for `u8` it is trivial, but for `String` it
 will free the memory. This is necessary for owning trait objects like
 `Box<Foo>`, which need to clean-up both the `Box` allocation as well as the
 internal type when they go out of scope. The `size` and `align` fields store
@@ -270,7 +270,7 @@ essentially unused at the moment since the information is embedded in the
 destructor, but will be used in the future, as trait objects are progressively
 made more flexible.
 
-Suppose we’ve got some values that implement `Foo`, then the explicit form of
+Suppose we’ve got some values that implement `Foo`. The explicit form of
 construction and use of `Foo` trait objects might look a bit like (ignoring the
 type mismatches: they’re all just pointers anyway):
 

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

@@ -45,7 +45,7 @@ but we don’t define a body, just a type signature. When we `impl` a trait,
 we use `impl Trait for Item`, rather than just `impl Item`.
 
 We can use traits to constrain our generics. Consider this function, which
-does not compile, and gives us a similar error:
+does not compile:
 
 ```rust,ignore
 fn print_area<T>(shape: T) {
@@ -56,7 +56,7 @@ fn print_area<T>(shape: T) {
 Rust complains:
 
 ```text
-error: type `T` does not implement any method in scope named `area`
+error: no method named `area` found for type `T` in the current scope
 ```
 
 Because `T` can be any type, we can’t be sure that it implements the `area`
@@ -212,10 +212,10 @@ This will compile without error.
 This means that even if someone does something bad like add methods to `i32`,
 it won’t affect you, unless you `use` that trait.
 
-There’s one more restriction on implementing traits. Either the trait or the
-type you’re writing the `impl` for must be defined by you. So, we could
+There’s one more restriction on implementing traits: either the trait, or the
+type you’re writing the `impl` for, must be defined by you. So, we could
 implement the `HasArea` type for `i32`, because `HasArea` is in our code. But
-if we tried to implement `Float`, a trait provided by Rust, for `i32`, we could
+if we tried to implement `ToString`, a trait provided by Rust, for `i32`, we could
 not, because neither the trait nor the type are in our code.
 
 One last thing about traits: generic functions with a trait bound use

branches/auto/src/grammar/verify.rs

@@ -287,7 +287,7 @@ fn main() {
     let options = config::basic_options();
     let session = session::build_session(options, None,
                                          syntax::diagnostics::registry::Registry::new(&[]));
-    let filemap = session.parse_sess.codemap().new_filemap(String::from_str("<n/a>"), code);
+    let filemap = session.parse_sess.codemap().new_filemap(String::from("<n/a>"), code);
     let mut lexer = lexer::StringReader::new(session.diagnostic(), filemap);
     let cm = session.codemap();
 

branches/auto/src/libcollections/string.rs

@@ -89,12 +89,12 @@ impl String {
     ///
     /// ```
     /// # #![feature(collections)]
-    /// let s = String::from_str("hello");
+    /// let s = String::from("hello");
     /// assert_eq!(&s[..], "hello");
     /// ```
     #[inline]
-    #[unstable(feature = "collections",
-               reason = "needs investigation to see if to_string() can match perf")]
+    #[unstable(feature = "collections", reason = "use `String::from` instead")]
+    #[deprecated(since = "1.2.0", reason = "use `String::from` instead")]
     #[cfg(not(test))]
     pub fn from_str(string: &str) -> String {
         String { vec: <[_]>::to_vec(string.as_bytes()) }
@@ -1009,7 +1009,7 @@ pub fn as_string<'a>(x: &'a str) -> DerefString<'a> {
     DerefString { x: as_vec(x.as_bytes()) }
 }
 
-/// Error returned from `String::from_str`
+/// Error returned from `String::from`
 #[unstable(feature = "str_parse_error", reason = "may want to be replaced with \
                                                   Void if it ever exists")]
 #[derive(Copy, Clone, Debug, Eq, PartialEq)]
@@ -1020,7 +1020,7 @@ impl FromStr for String {
     type Err = ParseError;
     #[inline]
     fn from_str(s: &str) -> Result<String, ParseError> {
-        Ok(String::from_str(s))
+        Ok(String::from(s))
     }
 }