---

yaml
---
r: 51662
b: refs/heads/incoming
c: de7d558
h: refs/heads/master
v: v3

Author: bors

[refs]

@@ -6,7 +6,7 @@ refs/heads/try: 8eb2bab100b42f0ba751552d8eff00eb2134c55a
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: 147ecfdd8221e4a4d4e090486829a06da1e0ca3c
-refs/heads/incoming: c88a20d171b407aa6a88b516c213e93b7dda5c94
+refs/heads/incoming: de7d5589441d4f0fe8c4f083b6fa9dbfac451398
 refs/heads/dist-snap: 8b98e5a296d95c5e832db0756828e5bec31c6f50
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503

branches/incoming/doc/rust.md

@@ -1671,6 +1671,10 @@ vec_elems : [expr [',' expr]*] | [expr ',' ".." expr]
 A [_vector_](#vector-types) _expression_ is written by enclosing zero or
 more comma-separated expressions of uniform type in square brackets.
 
+In the `[expr ',' ".." expr]` form, the expression after the `".."`
+must be a constant expression that can be evaluated at compile time, such
+as a [literal](#literals) or a [static item](#static-items).
+
 ~~~~
 [1, 2, 3, 4];
 ["a", "b", "c", "d"];
@@ -2156,6 +2160,19 @@ do f |j| {
 }
 ~~~~
 
+In this example, both calls to the (binary) function `k` are equivalent:
+
+~~~~
+# fn k(x:int, f: &fn(int)) { }
+# fn l(i: int) { }
+
+k(3, |j| l(j));
+
+do k(3) |j| {
+   l(j);
+}
+~~~~
+
 
 ### For expressions
 
@@ -2184,7 +2201,7 @@ and early boolean-valued returns from the `block` function,
 such that the meaning of `break` and `loop` is preserved in a primitive loop
 when rewritten as a `for` loop controlled by a higher order function.
 
-An example a for loop:
+An example of a for loop over the contents of a vector:
 
 ~~~~
 # type foo = int;
@@ -2198,6 +2215,14 @@ for v.each |e| {
 }
 ~~~~
 
+An example of a for loop over a series of integers:
+
+~~~~
+# fn bar(b:uint) { }
+for uint::range(0, 256) |i| {
+    bar(i);
+}
+~~~~
 
 ### If expressions
 
@@ -2474,6 +2499,7 @@ fail_unless!(b != "world");
 
 The vector type constructor represents a homogeneous array of values of a given type.
 A vector has a fixed size.
+(Operations like `vec::push` operate solely on owned vectors.)
 A vector type can be annotated with a _definite_ size,
 written with a trailing asterisk and integer literal, such as `[int * 10]`.
 Such a definite-sized vector type is a first-class type, since its size is known statically.
@@ -2484,6 +2510,10 @@ such as `&[T]`, `@[T]` or `~[T]`.
 The kind of a vector type depends on the kind of its element type,
 as with other simple structural types.
 
+Expressions producing vectors of definite size cannot be evaluated in a
+context expecting a vector of indefinite size; one must copy the
+definite-sized vector contents into a distinct vector of indefinite size.
+
 An example of a vector type and its use:
 
 ~~~~

branches/incoming/src/compiletest/header.rs

@@ -142,8 +142,7 @@ fn parse_check_line(line: ~str) -> Option<~str> {
 fn parse_exec_env(line: ~str) -> Option<(~str, ~str)> {
     do parse_name_value_directive(line, ~"exec-env").map |nv| {
         // nv is either FOO or FOO=BAR
-        let mut strs = ~[];
-        for str::each_splitn_char(*nv, '=', 1u) |s| { strs.push(s.to_owned()); }
+        let strs = str::splitn_char(*nv, '=', 1u);
         match strs.len() {
           1u => (strs[0], ~""),
           2u => (strs[0], strs[1]),

branches/incoming/src/compiletest/runtest.rs

@@ -267,7 +267,7 @@ fn run_debuginfo_test(config: config, props: TestProps, testfile: &Path) {
         // check if each line in props.check_lines appears in the
         // output (in order)
         let mut i = 0u;
-        for str::each_line(ProcRes.stdout) |line| {
+        for str::lines_each(ProcRes.stdout) |line| {
             if props.check_lines[i].trim() == line.trim() {
                 i += 1u;
             }
@@ -297,7 +297,7 @@ fn check_error_patterns(props: TestProps,
     let mut next_err_idx = 0u;
     let mut next_err_pat = props.error_patterns[next_err_idx];
     let mut done = false;
-    for str::each_line(ProcRes.stderr) |line| {
+    for str::lines_each(ProcRes.stderr) |line| {
         if str::contains(line, next_err_pat) {
             debug!("found error pattern %s", next_err_pat);
             next_err_idx += 1u;
@@ -347,7 +347,7 @@ fn check_expected_errors(expected_errors: ~[errors::ExpectedError],
     //    filename:line1:col1: line2:col2: *warning:* msg
     // where line1:col1: is the starting point, line2:col2:
     // is the ending point, and * represents ANSI color codes.
-    for str::each_line(ProcRes.stderr) |line| {
+    for str::lines_each(ProcRes.stderr) |line| {
         let mut was_expected = false;
         for vec::eachi(expected_errors) |i, ee| {
             if !found_flags[i] {
@@ -596,12 +596,8 @@ fn split_maybe_args(argstr: Option<~str>) -> ~[~str] {
     }
 
     match argstr {
-        Some(s) => {
-            let mut ss = ~[];
-            for str::each_split_char(s, ' ') |s| { ss.push(s.to_owned()) }
-            rm_whitespace(ss)
-        }
-        None => ~[]
+      Some(s) => rm_whitespace(str::split_char(s, ' ')),
+      None => ~[]
     }
 }
 

branches/incoming/src/libcore/iter.rs

@@ -284,7 +284,8 @@ pub fn build_sized_opt<A,B: Buildable<A>>(size: Option<uint>,
 
 // Functions that combine iteration and building
 
-/// Applies a function to each element of an iterable and returns the results.
+/// Applies a function to each element of an iterable and returns the results
+/// in a sequence built via `BU`.  See also `map_to_vec`.
 #[inline(always)]
 pub fn map<T,IT: BaseIter<T>,U,BU: Buildable<U>>(v: &IT, f: &fn(&T) -> U)
     -> BU {

branches/incoming/src/libcore/num/strconv.rs

@@ -130,13 +130,6 @@ impl_NumStrConv_Integer!(u16)
 impl_NumStrConv_Integer!(u32)
 impl_NumStrConv_Integer!(u64)
 
-
-// Special value strings as [u8] consts.
-static inf_buf:          [u8*3] = ['i' as u8, 'n' as u8, 'f' as u8];
-static positive_inf_buf: [u8*4] = ['+' as u8, 'i' as u8, 'n' as u8, 'f' as u8];
-static negative_inf_buf: [u8*4] = ['-' as u8, 'i' as u8, 'n' as u8, 'f' as u8];
-static nan_buf:          [u8*3] = ['N' as u8, 'a' as u8, 'N' as u8];
-
 /**
  * Converts a number to its string representation as a byte vector.
  * This is meant to be a common base implementation for all numeric string
@@ -486,15 +479,15 @@ pub fn from_str_bytes_common<T:NumCast+Zero+One+Ord+Copy+Div<T,T>+
     }
 
     if special {
-        if buf == inf_buf || buf == positive_inf_buf {
+        if buf == str::inf_buf || buf == str::positive_inf_buf {
             return NumStrConv::inf();
-        } else if buf == negative_inf_buf {
+        } else if buf == str::negative_inf_buf {
             if negative {
                 return NumStrConv::neg_inf();
             } else {
                 return None;
             }
-        } else if buf == nan_buf {
+        } else if buf == str::nan_buf {
             return NumStrConv::NaN();
         }
     }

branches/incoming/src/libcore/os.rs

@@ -218,8 +218,7 @@ pub fn env() -> ~[(~str,~str)] {
         fn env_convert(input: ~[~str]) -> ~[(~str, ~str)] {
             let mut pairs = ~[];
             for input.each |p| {
-                let mut vs = ~[];
-                for str::each_splitn_char(*p, '=', 1) |s| { vs.push(s.to_owned()) }
+                let vs = str::splitn_char(*p, '=', 1);
                 debug!("splitting: len: %u",
                     vs.len());
                 fail_unless!(vs.len() == 2);

branches/incoming/src/libcore/path.rs

@@ -381,8 +381,7 @@ impl ToStr for PosixPath {
 impl GenericPath for PosixPath {
 
     fn from_str(s: &str) -> PosixPath {
-        let mut components = ~[];
-        for str::each_split_nonempty(s, |c| c == '/') |s| { components.push(s.to_owned()) }
+        let mut components = str::split_nonempty(s, |c| c == '/');
         let is_absolute = (s.len() != 0 && s[0] == '/' as u8);
         return PosixPath { is_absolute: is_absolute,
                            components: components }
@@ -505,10 +504,9 @@ impl GenericPath for PosixPath {
     fn push_many(&self, cs: &[~str]) -> PosixPath {
         let mut v = copy self.components;
         for cs.each |e| {
-            let mut ss = ~[];
-            for str::each_split_nonempty(*e, |c| windows::is_sep(c as u8)) |s| {
-                ss.push(s.to_owned())
-            }
+            let mut ss = str::split_nonempty(
+                *e,
+                |c| windows::is_sep(c as u8));
             unsafe { v.push_all_move(ss); }
         }
         PosixPath { is_absolute: self.is_absolute,
@@ -517,10 +515,7 @@ impl GenericPath for PosixPath {
 
     fn push(&self, s: &str) -> PosixPath {
         let mut v = copy self.components;
-        let mut ss = ~[];
-        for str::each_split_nonempty(s, |c| windows::is_sep(c as u8)) |s| {
-            ss.push(s.to_owned())
-        }
+        let mut ss = str::split_nonempty(s, |c| windows::is_sep(c as u8));
         unsafe { v.push_all_move(ss); }
         PosixPath { components: v, ..copy *self }
     }
@@ -595,10 +590,8 @@ impl GenericPath for WindowsPath {
           }
         }
 
-        let mut components = ~[];
-        for str::each_split_nonempty(rest, |c| windows::is_sep(c as u8)) |s| {
-            components.push(s.to_owned())
-        }
+        let mut components =
+            str::split_nonempty(rest, |c| windows::is_sep(c as u8));
         let is_absolute = (rest.len() != 0 && windows::is_sep(rest[0]));
         return WindowsPath { host: host,
                              device: device,
@@ -766,10 +759,9 @@ impl GenericPath for WindowsPath {
     fn push_many(&self, cs: &[~str]) -> WindowsPath {
         let mut v = copy self.components;
         for cs.each |e| {
-            let mut ss = ~[];
-            for str::each_split_nonempty(*e, |c| windows::is_sep(c as u8)) |s| {
-                ss.push(s.to_owned())
-            }
+            let mut ss = str::split_nonempty(
+                *e,
+                |c| windows::is_sep(c as u8));
             unsafe { v.push_all_move(ss); }
         }
         // tedious, but as-is, we can't use ..self
@@ -783,10 +775,7 @@ impl GenericPath for WindowsPath {
 
     fn push(&self, s: &str) -> WindowsPath {
         let mut v = copy self.components;
-        let mut ss = ~[];
-        for str::each_split_nonempty(s, |c| windows::is_sep(c as u8)) |s| {
-            ss.push(s.to_owned())
-        }
+        let mut ss = str::split_nonempty(s, |c| windows::is_sep(c as u8));
         unsafe { v.push_all_move(ss); }
         return WindowsPath { components: v, ..copy *self }
     }

branches/incoming/src/libcore/rand.rs

@@ -327,9 +327,7 @@ impl RngUtil for @Rng {
      */
     fn gen_char_from(&self, chars: &str) -> char {
         fail_unless!(!chars.is_empty());
-        let mut cs = ~[];
-        for str::each_char(chars) |c| { cs.push(c) }
-        self.choose(cs)
+        self.choose(str::chars(chars))
     }
 
     /// Return a random bool