auto merge of #7420 : mozilla/rust/rollup, r=thestinger

Author: bors

.gitmodules

@@ -1,6 +1,8 @@
 [submodule "src/llvm"]
 	path = src/llvm
 	url = https://github.com/brson/llvm.git
+	branch = master
 [submodule "src/libuv"]
 	path = src/libuv
 	url = https://github.com/brson/libuv.git
+	branch = master

RELEASES.txt

@@ -4,6 +4,8 @@ Version 0.7 (July 2013)
    * ??? changes, numerous bugfixes
 
    * Syntax changes
+      * `impl`s no longer accept a visibility qualifier. Put them on methods
+        instead.
       * `use mod` is no longer valid.
       * `fail!` and `assert!` accept `~str`, `&'static str` or `fmt!`-style
         argument list.
@@ -25,6 +27,10 @@ Version 0.7 (July 2013)
         no padding between fields.
       * The `for` loop protocol now requires `for`-iterators to return `bool`
         so they compose better.
+      * Trait default methods work more often.
+      * Type parameters bound by `Copy` must now be copied explicitly with
+        the `copy` keyword.
+      * It is now illegal to move out of a dereferenced unsafe pointer.
       * `Option<~T>` is now represented as a nullable pointer.
       * `@mut` does dynamic borrow checks correctly.
       * Macros TODO
@@ -43,26 +49,30 @@ Version 0.7 (July 2013)
    * Libraries
       * The `core` crate was renamed to `std`.
       * The `std` crate was renamed to `extra`.
-      * `std::mut` removed.
-      * std: The prelude no longer reexports any modules, only types and traits.
-      * std: Prelude additions: `print`, `println`, `FromStr`, `ApproxEq`, `Equiv`,
-        `Iterator`, `IteratorUtil`, many numeric traits, many tuple traits.
       * std: `iterator` module for external iterator objects.
+      * Many old-style (internal, higher-order function) iterators replaced by
+        implementations of `Iterator`.
       * std: Many old internal vector and string iterators,
         incl. `any`, `all`. removed.
-      * std: new numeric traits: `Fractional`, `Real`, `RealExt`, `Integer`, `Ratio`,
+      * std: The `finalize` method of `Drop` renamed to `drop`.
+      * std: The prelude no longer reexports any modules, only types and traits.
+      * std: Prelude additions: `print`, `println`, `FromStr`, `ApproxEq`, `Equiv`,
+        `Iterator`, `IteratorUtil`, many numeric traits, many tuple traits.
+      * std: New numeric traits: `Fractional`, `Real`, `RealExt`, `Integer`, `Ratio`,
         `Algebraic`, `Trigonometric`, `Exponential`, `Primitive`.
       * std: Tuple traits and accessors defined for up to 12-tuples, e.g.
         `(0, 1, 2).n2()` or `(0, 1, 2).n2_ref()`.
-      * std: many types implement `Clone`.
+      * std: Many types implement `Clone`.
       * std: `path` type renamed to `Path`.
+      * std: `mut` module and `Mut` type removed.
       * std: Many standalone functions removed in favor of methods and iterators
         in `vec`, `str`. In the future methods will also work as functions.
-      * std: `reinterpret_cast` removed. Used `transmute`.
+      * std: `reinterpret_cast` removed. Use `transmute`.
       * std: ascii string handling in `std::ascii`.
       * std: `Rand` is implemented for ~/@.
       * std: `run` module for spawning processes overhauled.
       * std: Various atomic types added to `unstable::atomic`.
+      * std: Various types implement `Zero`.
       * std: `LinearMap` and `LinearSet` renamed to `HashMap` and `HashSet`.
       * std: Borrowed pointer functions moved from `ptr` to `borrow`.
       * std: Added `os::mkdir_recursive`.
@@ -96,7 +106,6 @@ Version 0.7 (July 2013)
       * More and improved library documentation.
       * Various improvements on ARM and Android.
       * Various improvements to MIPS backend.
-      * jemalloc is the Rust allocator.
 
 Version 0.6 (April 2013)
 ------------------------

src/etc/combine-tests.py

@@ -60,7 +60,7 @@ def scrub(b):
 for t in stage2_tests:
     p = os.path.join("test", "run-pass", t)
     p = p.replace("\\", "\\\\")
-    d.write("    out.write_str(~\"run-pass [stage2]: %s\\n\");\n" % p)
+    d.write("    out.write_str(\"run-pass [stage2]: %s\\n\");\n" % p)
     d.write("    t_%d::main();\n" % i)
     i += 1
 d.write("}\n")

src/libextra/deque.rs

@@ -9,12 +9,12 @@
 // except according to those terms.
 
 //! A double-ended queue implemented as a circular buffer
-
 use core::prelude::*;
 
 use core::uint;
 use core::util::replace;
 use core::vec;
+use core::cast::transmute;
 
 static initial_capacity: uint = 32u; // 2^5
 
@@ -153,7 +153,86 @@ impl<T> Deque<T> {
     pub fn reserve_at_least(&mut self, n: uint) {
         vec::reserve_at_least(&mut self.elts, n);
     }
+
+    /// Front-to-back iterator.
+    pub fn iter<'a>(&'a self) -> DequeIterator<'a, T> {
+    DequeIterator { idx: self.lo, nelts: self.nelts, used: 0, vec: self.elts }
+    }
+
+    /// Front-to-back iterator which returns mutable values.
+    pub fn mut_iter<'a>(&'a mut self) -> DequeMutIterator<'a, T> {
+    DequeMutIterator { idx: self.lo, nelts: self.nelts, used: 0, vec: self.elts }
+    }
+
+    /// Back-to-front iterator.
+    pub fn rev_iter<'a>(&'a self) -> DequeRevIterator<'a, T> {
+    DequeRevIterator { idx: self.hi - 1u, nelts: self.nelts, used: 0, vec: self.elts }
+    }
+
+    /// Back-to-front iterator which returns mutable values.
+    pub fn mut_rev_iter<'a>(&'a mut self) -> DequeMutRevIterator<'a, T> {
+    DequeMutRevIterator { idx: self.hi - 1u, nelts: self.nelts, used: 0, vec: self.elts }
+    }
+}
+
+macro_rules! iterator {
+    (impl $name:ident -> $elem:ty, $step:expr) => {
+        impl<'self, T> Iterator<$elem> for $name<'self, T> {
+            #[inline]
+            fn next(&mut self) -> Option<$elem> {
+                if self.used >= self.nelts {
+                    return None;
+                }
+                let ret = unsafe {
+                    match self.vec[self.idx % self.vec.len()] {
+                        Some(ref e) => Some(transmute(e)),
+                        None => None
+                    }
+                };
+                self.idx += $step;
+                self.used += 1;
+                ret
+            }
+        }
+    }
+}
+
+/// Deque iterator
+pub struct DequeIterator<'self, T> {
+    priv idx: uint,
+    priv nelts: uint,
+    priv used: uint,
+    priv vec: &'self [Option<T>]
 }
+iterator!{impl DequeIterator -> &'self T, 1}
+
+/// Deque reverse iterator
+pub struct DequeRevIterator<'self, T> {
+    priv idx: uint,
+    priv nelts: uint,
+    priv used: uint,
+    priv vec: &'self [Option<T>]
+}
+iterator!{impl DequeRevIterator -> &'self T, -1}
+
+/// Deque mutable iterator
+pub struct DequeMutIterator<'self, T> {
+    priv idx: uint,
+    priv nelts: uint,
+    priv used: uint,
+    priv vec: &'self mut [Option<T>]
+
+}
+iterator!{impl DequeMutIterator -> &'self mut T, 1}
+
+/// Deque mutable reverse iterator
+pub struct DequeMutRevIterator<'self, T> {
+    priv idx: uint,
+    priv nelts: uint,
+    priv used: uint,
+    priv vec: &'self mut [Option<T>]
+}
+iterator!{impl DequeMutRevIterator -> &'self mut T, -1}
 
 /// Grow is only called on full elts, so nelts is also len(elts), unlike
 /// elsewhere.
@@ -178,6 +257,7 @@ mod tests {
     use core::cmp::Eq;
     use core::kinds::Copy;
     use core::vec::capacity;
+    use core;
 
     #[test]
     fn test_simple() {
@@ -318,8 +398,7 @@ mod tests {
 
     #[test]
     fn test_param_taggy() {
-        test_parameterized::<Taggy>(One(1), Two(1, 2), Three(1, 2, 3),
-                                    Two(17, 42));
+        test_parameterized::<Taggy>(One(1), Two(1, 2), Three(1, 2, 3), Two(17, 42));
     }
 
     #[test]
@@ -382,4 +461,31 @@ mod tests {
         assert_eq!(capacity(&mut d.elts), 64);
     }
 
+    #[test]
+    fn test_iter() {
+        let mut d = Deque::new();
+        for core::int::range(0,5) |i| {
+            d.add_back(i);
+        }
+        assert_eq!(d.iter().collect::<~[&int]>(), ~[&0,&1,&2,&3,&4]);
+
+        for core::int::range(6,9) |i| {
+            d.add_front(i);
+        }
+        assert_eq!(d.iter().collect::<~[&int]>(), ~[&8,&7,&6,&0,&1,&2,&3,&4]);
+    }
+
+    #[test]
+    fn test_rev_iter() {
+        let mut d = Deque::new();
+        for core::int::range(0,5) |i| {
+            d.add_back(i);
+        }
+        assert_eq!(d.rev_iter().collect::<~[&int]>(), ~[&4,&3,&2,&1,&0]);
+
+        for core::int::range(6,9) |i| {
+            d.add_front(i);
+        }
+        assert_eq!(d.rev_iter().collect::<~[&int]>(), ~[&4,&3,&2,&1,&0,&6,&7,&8]);
+    }
 }

src/libextra/priority_queue.rs

@@ -37,10 +37,11 @@ impl<T:Ord> Mutable for PriorityQueue<T> {
 }
 
 impl<T:Ord> PriorityQueue<T> {
-    /// Visit all values in the underlying vector.
-    ///
-    /// The values are **not** visited in order.
-    pub fn each(&self, f: &fn(&T) -> bool) -> bool { self.data.iter().advance(f) }
+    /// An iterator visiting all values in underlying vector, in
+    /// arbitrary order.
+    pub fn iter<'a>(&'a self) -> PriorityQueueIterator<'a, T> {
+        PriorityQueueIterator { iter: self.data.iter() }
+    }
 
     /// Returns the greatest item in the queue - fails if empty
     pub fn top<'a>(&'a self) -> &'a T { &self.data[0] }
@@ -178,11 +179,33 @@ impl<T:Ord> PriorityQueue<T> {
     }
 }
 
+/// PriorityQueue iterator
+pub struct PriorityQueueIterator <'self, T> {
+    priv iter: vec::VecIterator<'self, T>,
+}
+
+impl<'self, T> Iterator<&'self T> for PriorityQueueIterator<'self, T> {
+    #[inline]
+    fn next(&mut self) -> Option<(&'self T)> { self.iter.next() }
+}
+
 #[cfg(test)]
 mod tests {
     use sort::merge_sort;
     use priority_queue::PriorityQueue;
 
+    #[test]
+    fn test_iterator() {
+        let data = ~[5, 9, 3];
+        let iterout = ~[9, 5, 3];
+        let pq = PriorityQueue::from_vec(data);
+        let mut i = 0;
+        for pq.iter().advance |el| {
+            assert_eq!(*el, iterout[i]);
+            i += 1;
+        }
+    }
+
     #[test]
     fn test_top_and_pop() {
         let data = ~[2u, 4, 6, 2, 1, 8, 10, 3, 5, 7, 0, 9, 1];

src/libextra/serialize.rs

@@ -832,7 +832,7 @@ impl<
     fn encode(&self, e: &mut E) {
         do e.emit_map(self.len()) |e| {
             let mut i = 0;
-            for self.each |key, val| {
+            for self.iter().advance |(key, val)| {
                 e.emit_map_elt_key(i, |e| key.encode(e));
                 e.emit_map_elt_val(i, |e| val.encode(e));
                 i += 1;
@@ -866,7 +866,7 @@ impl<
     fn encode(&self, s: &mut S) {
         do s.emit_seq(self.len()) |s| {
             let mut i = 0;
-            for self.each |e| {
+            for self.iter().advance |e| {
                 s.emit_seq_elt(i, |s| e.encode(s));
                 i += 1;
             }