auto merge of #9065 : thestinger/rust/iter, r=alexcrichton

The trait will keep the `Iterator` naming, but a more concise module
name makes using the free functions less verbose. The module will define
iterables in addition to iterators, as it deals with iteration in
general.

Author: bors

doc/tutorial-container.md

@@ -200,7 +200,7 @@ for i in range(0, 5) {
   printf!("%d ", i) // prints "0 1 2 3 4"
 }
 
-for i in std::iterator::range_inclusive(0, 5) { // needs explicit import
+for i in std::iter::range_inclusive(0, 5) { // needs explicit import
   printf!("%d ", i) // prints "0 1 2 3 4 5"
 }
 ~~~

src/etc/unicode.py

@@ -310,7 +310,7 @@ def emit_decomp_module(f, canon, compat, combine):
         + "        bsearch_range_value_table(c, combining_class_table)\n"
         + "    }\n\n")
     f.write("    fn d(c: char, i: &fn(char), k: bool) {\n")
-    f.write("        use iterator::Iterator;\n");
+    f.write("        use iter::Iterator;\n");
 
     f.write("        if c <= '\\x7f' { i(c); return; }\n")
 

src/libextra/bitv.rs

@@ -12,8 +12,8 @@
 
 
 use std::cmp;
-use std::iterator::RandomAccessIterator;
-use std::iterator::{Invert, Enumerate, Repeat, Map, Zip};
+use std::iter::RandomAccessIterator;
+use std::iter::{Invert, Enumerate, Repeat, Map, Zip};
 use std::num;
 use std::ops;
 use std::uint;

src/libextra/dlist.rs

@@ -25,8 +25,8 @@
 use std::cast;
 use std::ptr;
 use std::util;
-use std::iterator::{FromIterator, Extendable, Invert};
-use std::iterator;
+use std::iter::Invert;
+use std::iter;
 
 use container::Deque;
 
@@ -593,27 +593,27 @@ impl<A> Extendable<A> for DList<A> {
 impl<A: Eq> Eq for DList<A> {
     fn eq(&self, other: &DList<A>) -> bool {
         self.len() == other.len() &&
-            iterator::order::eq(self.iter(), other.iter())
+            iter::order::eq(self.iter(), other.iter())
     }
 
     fn ne(&self, other: &DList<A>) -> bool {
         self.len() != other.len() ||
-            iterator::order::ne(self.iter(), other.iter())
+            iter::order::ne(self.iter(), other.iter())
     }
 }
 
 impl<A: Eq + Ord> Ord for DList<A> {
     fn lt(&self, other: &DList<A>) -> bool {
-        iterator::order::lt(self.iter(), other.iter())
+        iter::order::lt(self.iter(), other.iter())
     }
     fn le(&self, other: &DList<A>) -> bool {
-        iterator::order::le(self.iter(), other.iter())
+        iter::order::le(self.iter(), other.iter())
     }
     fn gt(&self, other: &DList<A>) -> bool {
-        iterator::order::gt(self.iter(), other.iter())
+        iter::order::gt(self.iter(), other.iter())
     }
     fn ge(&self, other: &DList<A>) -> bool {
-        iterator::order::ge(self.iter(), other.iter())
+        iter::order::ge(self.iter(), other.iter())
     }
 }
 

src/libextra/enum_set.rs

@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use std::iterator::Iterator;
-
 #[deriving(Clone, Eq, IterBytes, ToStr)]
 /// A specialized Set implementation to use enum types.
 pub struct EnumSet<E> {

src/libextra/json.rs

@@ -18,7 +18,6 @@
 
 use std::char;
 use std::cast::transmute;
-use std::iterator;
 use std::float;
 use std::hashmap::HashMap;
 use std::io::WriterUtil;
@@ -489,7 +488,7 @@ pub struct Parser<T> {
 }
 
 /// Decode a json value from an Iterator<char>
-pub fn Parser<T : iterator::Iterator<char>>(rdr: ~T) -> Parser<T> {
+pub fn Parser<T : Iterator<char>>(rdr: ~T) -> Parser<T> {
     let mut p = Parser {
         rdr: rdr,
         ch: '\x00',
@@ -500,7 +499,7 @@ pub fn Parser<T : iterator::Iterator<char>>(rdr: ~T) -> Parser<T> {
     p
 }
 
-impl<T: iterator::Iterator<char>> Parser<T> {
+impl<T: Iterator<char>> Parser<T> {
     pub fn parse(&mut self) -> Result<Json, Error> {
         match self.parse_value() {
           Ok(value) => {
@@ -518,7 +517,7 @@ impl<T: iterator::Iterator<char>> Parser<T> {
     }
 }
 
-impl<T : iterator::Iterator<char>> Parser<T> {
+impl<T : Iterator<char>> Parser<T> {
     // FIXME: #8971: unsound
     fn eof(&self) -> bool { self.ch == unsafe { transmute(-1u32) } }
 

src/libextra/num/bigint.rs

@@ -2011,13 +2011,13 @@ mod bigint_tests {
 #[cfg(test)]
 mod bench {
     use super::*;
-    use std::{iterator, util};
+    use std::{iter, util};
     use std::num::{Zero, One};
     use extra::test::BenchHarness;
 
     fn factorial(n: uint) -> BigUint {
         let mut f: BigUint = One::one();
-        for i in iterator::range_inclusive(1, n) {
+        for i in iter::range_inclusive(1, n) {
             f = f * BigUint::from_uint(i);
         }
         f

src/libextra/priority_queue.rs

@@ -16,7 +16,6 @@ use std::clone::Clone;
 use std::unstable::intrinsics::{move_val_init, init};
 use std::util::{replace, swap};
 use std::vec;
-use std::iterator::{FromIterator, Extendable};
 
 /// A priority queue implemented with a binary heap
 #[deriving(Clone)]

src/libextra/ringbuf.rs

@@ -15,7 +15,7 @@
 
 use std::num;
 use std::vec;
-use std::iterator::{FromIterator, Invert, RandomAccessIterator, Extendable};
+use std::iter::{Invert, RandomAccessIterator};
 
 use container::Deque;
 
@@ -694,13 +694,13 @@ mod tests {
 
     #[test]
     fn test_from_iterator() {
-        use std::iterator;
+        use std::iter;
         let v = ~[1,2,3,4,5,6,7];
         let deq: RingBuf<int> = v.iter().map(|&x| x).collect();
         let u: ~[int] = deq.iter().map(|&x| x).collect();
         assert_eq!(u, v);
 
-        let mut seq = iterator::count(0u, 2).take(256);
+        let mut seq = iter::count(0u, 2).take(256);
         let deq: RingBuf<uint> = seq.collect();
         for (i, &x) in deq.iter().enumerate() {
             assert_eq!(2*i, x);

src/libextra/smallintmap.rs

@@ -15,7 +15,7 @@
 
 #[allow(missing_doc)];
 
-use std::iterator::{Iterator, Enumerate, FilterMap, Invert};
+use std::iter::{Enumerate, FilterMap, Invert};
 use std::util::replace;
 use std::vec::{VecIterator, VecMutIterator};
 use std::vec;