---

yaml
---
r: 191019
b: refs/heads/auto
c: 2a106d6
h: refs/heads/master
i:
  191017: 5ba903d
  191015: 8ab3783
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: a5828ff7b0203ac378974c2d30ed94a14073895a
+refs/heads/auto: 2a106d68f4987733b150e4a8b2f8be209ab6ae14
 refs/heads/servo: af82457af293e2a842ba6b7759b70288da276167
 refs/tags/release-0.6: b4ebcfa1812664df5e142f0134a5faea3918544c
 refs/tags/0.1: b19db808c2793fe2976759b85a355c3ad8c8b336

branches/auto/src/compiletest/runtest.rs

@@ -1052,22 +1052,22 @@ fn scan_char(haystack: &str, needle: char, idx: &mut uint) -> bool {
     if *idx >= haystack.len() {
         return false;
     }
-    let range = haystack.char_range_at(*idx);
-    if range.ch != needle {
+    let ch = haystack.char_at(*idx);
+    if ch != needle {
         return false;
     }
-    *idx = range.next;
+    *idx += ch.len_utf8();
     return true;
 }
 
 fn scan_integer(haystack: &str, idx: &mut uint) -> bool {
     let mut i = *idx;
     while i < haystack.len() {
-        let range = haystack.char_range_at(i);
-        if range.ch < '0' || '9' < range.ch {
+        let ch = haystack.char_at(i);
+        if ch < '0' || '9' < ch {
             break;
         }
-        i = range.next;
+        i += ch.len_utf8();
     }
     if i == *idx {
         return false;
@@ -1083,9 +1083,9 @@ fn scan_string(haystack: &str, needle: &str, idx: &mut uint) -> bool {
         if haystack_i >= haystack.len() {
             return false;
         }
-        let range = haystack.char_range_at(haystack_i);
-        haystack_i = range.next;
-        if !scan_char(needle, range.ch, &mut needle_i) {
+        let ch = haystack.char_at(haystack_i);
+        haystack_i += ch.len_utf8();
+        if !scan_char(needle, ch, &mut needle_i) {
             return false;
         }
     }

branches/auto/src/libcollections/lib.rs

@@ -35,6 +35,7 @@
 #![feature(unique)]
 #![feature(unsafe_no_drop_flag)]
 #![feature(step_by)]
+#![feature(str_char)]
 #![cfg_attr(test, feature(rand, rustc_private, test))]
 #![cfg_attr(test, allow(deprecated))] // rand
 

branches/auto/src/libcollections/str.rs

@@ -29,7 +29,7 @@ use unicode::str as unicode_str;
 use unicode::str::Utf16Item;
 
 use borrow::{Cow, IntoCow};
-use str::{self, CharRange, FromStr, Utf8Error};
+use str::{self, FromStr, Utf8Error};
 use vec::{DerefVec, Vec, as_vec};
 
 /// A growable string stored as a UTF-8 encoded buffer.
@@ -561,9 +561,9 @@ impl String {
             return None
         }
 
-        let CharRange {ch, next} = self.char_range_at_reverse(len);
+        let ch = self.char_at_reverse(len);
         unsafe {
-            self.vec.set_len(next);
+            self.vec.set_len(len - ch.len_utf8());
         }
         Some(ch)
     }
@@ -595,7 +595,8 @@ impl String {
         let len = self.len();
         assert!(idx <= len);
 
-        let CharRange { ch, next } = self.char_range_at(idx);
+        let ch = self.char_at(idx);
+        let next = idx + ch.len_utf8();
         unsafe {
             ptr::copy(self.vec.as_mut_ptr().offset(idx as isize),
                       self.vec.as_ptr().offset(next as isize),

branches/auto/src/libcollections/string.rs

@@ -18,6 +18,7 @@
 
 use self::OldSearcher::{TwoWay, TwoWayLong};
 
+use char::CharExt;
 use clone::Clone;
 use cmp::{self, Eq};
 use default::Default;
@@ -1112,8 +1113,10 @@ static UTF8_CHAR_WIDTH: [u8; 256] = [
 /// the next `char` in a string.  This can be used as a data structure
 /// for iterating over the UTF-8 bytes of a string.
 #[derive(Copy)]
-#[unstable(feature = "core",
-           reason = "naming is uncertain with container conventions")]
+#[unstable(feature = "str_char",
+           reason = "existence of this struct is uncertain as it is frequently \
+                     able to be replaced with char.len_utf8() and/or \
+                     char/char_indices iterators")]
 pub struct CharRange {
     /// Current `char`
     pub ch: char,
@@ -1646,8 +1649,8 @@ impl StrExt for str {
         if self.is_empty() {
             None
         } else {
-            let CharRange {ch, next} = self.char_range_at(0);
-            let next_s = unsafe { self.slice_unchecked(next, self.len()) };
+            let ch = self.char_at(0);
+            let next_s = unsafe { self.slice_unchecked(ch.len_utf8(), self.len()) };
             Some((ch, next_s))
         }
     }

branches/auto/src/libcore/str/mod.rs

@@ -92,11 +92,10 @@
        html_playground_url = "http://play.rust-lang.org/")]
 
 #![deny(missing_docs)]
-#![feature(collections)]
 #![feature(int_uint)]
 #![feature(staged_api)]
-#![feature(core)]
 #![feature(str_words)]
+#![feature(str_char)]
 #![cfg_attr(test, feature(rustc_private))]
 
 #[cfg(test)] #[macro_use] extern crate log;
@@ -620,8 +619,8 @@ pub fn getopts(args: &[String], optgrps: &[OptGroup]) -> Result {
                 let mut j = 1;
                 names = Vec::new();
                 while j < curlen {
-                    let range = cur.char_range_at(j);
-                    let opt = Short(range.ch);
+                    let ch = cur.char_at(j);
+                    let opt = Short(ch);
 
                     /* In a series of potential options (eg. -aheJ), if we
                        see one which takes an argument, we assume all
@@ -642,12 +641,13 @@ pub fn getopts(args: &[String], optgrps: &[OptGroup]) -> Result {
                         No => false
                     };
 
-                    if arg_follows && range.next < curlen {
-                        i_arg = Some((&cur[range.next..curlen]).to_string());
+                    let next = j + ch.len_utf8();
+                    if arg_follows && next < curlen {
+                        i_arg = Some((&cur[next..curlen]).to_string());
                         break;
                     }
 
-                    j = range.next;
+                    j = next;
                 }
             }
             let mut name_pos = 0;

branches/auto/src/libgetopts/lib.rs

@@ -269,8 +269,8 @@ pub mod types {
                 #[repr(C)]
                 #[derive(Copy)] pub struct sockaddr_storage {
                     pub ss_family: sa_family_t,
-                    pub __ss_align: i64,
-                    pub __ss_pad2: [u8; 112],
+                    pub __ss_align: isize,
+                    pub __ss_pad2: [u8; 128 - 2 * (::core::isize::BYTES as usize)],
                 }
                 #[repr(C)]
                 #[derive(Copy)] pub struct sockaddr_in {

branches/auto/src/liblibc/lib.rs

@@ -42,6 +42,7 @@
 #![feature(io)]
 #![feature(path_ext)]
 #![feature(str_words)]
+#![feature(str_char)]
 #![cfg_attr(test, feature(test))]
 
 extern crate arena;

branches/auto/src/librustc/lib.rs

@@ -38,6 +38,7 @@
 #![feature(exit_status)]
 #![feature(io)]
 #![feature(set_stdio)]
+#![feature(unicode)]
 
 extern crate arena;
 extern crate flate;

branches/auto/src/librustc_driver/lib.rs

@@ -41,6 +41,7 @@
 #![feature(unsafe_destructor)]
 #![feature(staged_api)]
 #![feature(std_misc)]
+#![feature(str_char)]
 #![cfg_attr(test, feature(test))]
 
 extern crate syntax;

branches/auto/src/librustc_lint/lib.rs

@@ -5240,7 +5240,7 @@ pub fn may_break(cx: &ty::ctxt, id: ast::NodeId, b: &ast::Block) -> bool {
     // inside the loop?
     (loop_query(&*b, |e| {
         match *e {
-            ast::ExprBreak(_) => true,
+            ast::ExprBreak(None) => true,
             _ => false
         }
     })) ||

branches/auto/src/librustc_typeck/check/mod.rs

@@ -37,6 +37,7 @@ Core encoding and decoding interfaces.
 #![feature(staged_api)]
 #![feature(std_misc)]
 #![feature(unicode)]
+#![feature(str_char)]
 #![cfg_attr(test, feature(test))]
 
 // test harness access

branches/auto/src/libserialize/lib.rs

@@ -73,10 +73,10 @@
 //!
 //! ## Concurrency, I/O, and the runtime
 //!
-//! The [`thread`](thread/index.html) module contains Rust's threading abstractions,
-//! while [`comm`](comm/index.html) contains the channel types for message
-//! passing. [`sync`](sync/index.html) contains further, primitive, shared
-//! memory types, including [`atomic`](sync/atomic/index.html).
+//! The [`thread`](thread/index.html) module contains Rust's threading abstractions.
+//! [`sync`](sync/index.html) contains further, primitive, shared memory types,
+//! including [`atomic`](sync/atomic/index.html), and [`mpsc`](sync/mpmc/index.html),
+//! which contains the channel types for message passing.
 //!
 //! Common types of I/O, including files, TCP, UDP, pipes, Unix domain sockets,
 //! timers, and process spawning, are defined in the
@@ -127,6 +127,7 @@
 #![feature(int_uint)]
 #![feature(unique)]
 #![feature(allow_internal_unstable)]
+#![feature(str_char)]
 #![cfg_attr(test, feature(test, rustc_private))]
 
 // Don't link to std. We are std.

branches/auto/src/libstd/lib.rs

@@ -202,7 +202,7 @@ impl FromInner<libc::in_addr> for Ipv4Addr {
 impl Ipv6Addr {
     /// Create a new IPv6 address from eight 16-bit segments.
     ///
-    /// The result will represent the IP address a:b:c:d:e:f
+    /// The result will represent the IP address a:b:c:d:e:f:g:h
     #[stable(feature = "rust1", since = "1.0.0")]
     pub fn new(a: u16, b: u16, c: u16, d: u16, e: u16, f: u16, g: u16,
                h: u16) -> Ipv6Addr {

branches/auto/src/libstd/net/ip.rs

@@ -38,6 +38,7 @@
 #![feature(std_misc)]
 #![feature(unicode)]
 #![feature(path_ext)]
+#![feature(str_char)]
 
 extern crate arena;
 extern crate fmt_macros;

branches/auto/src/libsyntax/lib.rs

@@ -20,7 +20,6 @@ use parse::lexer;
 use print::pprust;
 
 use std::io::Read;
-use std::str;
 use std::usize;
 
 #[derive(Clone, Copy, PartialEq)]
@@ -210,11 +209,11 @@ fn all_whitespace(s: &str, col: CharPos) -> Option<usize> {
     let mut col = col.to_usize();
     let mut cursor: usize = 0;
     while col > 0 && cursor < len {
-        let r: str::CharRange = s.char_range_at(cursor);
-        if !r.ch.is_whitespace() {
+        let ch = s.char_at(cursor);
+        if !ch.is_whitespace() {
             return None;
         }
-        cursor = r.next;
+        cursor += ch.len_utf8();
         col -= 1;
     }
     return Some(cursor);

branches/auto/src/libsyntax/parse/lexer/comments.rs

@@ -22,7 +22,6 @@ use std::fmt;
 use std::mem::replace;
 use std::num;
 use std::rc::Rc;
-use std::str;
 
 pub use ext::tt::transcribe::{TtReader, new_tt_reader, new_tt_reader_with_doc_flag};
 
@@ -291,7 +290,8 @@ impl<'a> StringReader<'a> {
                           s: &'b str, errmsg: &'b str) -> Cow<'b, str> {
         let mut i = 0;
         while i < s.len() {
-            let str::CharRange { ch, next } = s.char_range_at(i);
+            let ch = s.char_at(i);
+            let next = i + ch.len_utf8();
             if ch == '\r' {
                 if next < s.len() && s.char_at(next) == '\n' {
                     return translate_crlf_(self, start, s, errmsg, i).into_cow();
@@ -309,7 +309,8 @@ impl<'a> StringReader<'a> {
             let mut buf = String::with_capacity(s.len());
             let mut j = 0;
             while i < s.len() {
-                let str::CharRange { ch, next } = s.char_range_at(i);
+                let ch = s.char_at(i);
+                let next = i + ch.len_utf8();
                 if ch == '\r' {
                     if j < i { buf.push_str(&s[j..i]); }
                     j = next;
@@ -335,10 +336,11 @@ impl<'a> StringReader<'a> {
         if current_byte_offset < self.source_text.len() {
             assert!(self.curr.is_some());
             let last_char = self.curr.unwrap();
-            let next = self.source_text.char_range_at(current_byte_offset);
-            let byte_offset_diff = next.next - current_byte_offset;
+            let ch = self.source_text.char_at(current_byte_offset);
+            let next = current_byte_offset + ch.len_utf8();
+            let byte_offset_diff = next - current_byte_offset;
             self.pos = self.pos + Pos::from_usize(byte_offset_diff);
-            self.curr = Some(next.ch);
+            self.curr = Some(ch);
             self.col = self.col + CharPos(1);
             if last_char == '\n' {
                 self.filemap.next_line(self.last_pos);
@@ -370,7 +372,7 @@ impl<'a> StringReader<'a> {
         let offset = self.byte_offset(self.pos).to_usize();
         let s = &self.source_text[..];
         if offset >= s.len() { return None }
-        let str::CharRange { next, .. } = s.char_range_at(offset);
+        let next = offset + s.char_at(offset).len_utf8();
         if next < s.len() {
             Some(s.char_at(next))
         } else {

branches/auto/src/libsyntax/parse/lexer/mod.rs

@@ -60,6 +60,7 @@
 #![feature(rustc_private)]
 #![feature(staged_api)]
 #![feature(std_misc)]
+#![feature(str_char)]
 #![feature(path_ext)]
 #![cfg_attr(windows, feature(libc))]
 

branches/auto/src/libterm/lib.rs

@@ -244,7 +244,7 @@ impl<'a> Iterator for Graphemes<'a> {
         }
 
         self.cat = if take_curr {
-            idx = self.string.char_range_at(idx).next;
+            idx = idx + len_utf8(self.string.char_at(idx));
             None
         } else {
             Some(cat)
@@ -256,6 +256,11 @@ impl<'a> Iterator for Graphemes<'a> {
     }
 }
 
+#[cfg(stage0)]
+fn len_utf8(c: char) -> usize { UCharExt::len_utf8(c) }
+#[cfg(not(stage0))]
+fn len_utf8(c: char) -> usize { c.len_utf8() }
+
 impl<'a> DoubleEndedIterator for Graphemes<'a> {
     #[inline]
     fn next_back(&mut self) -> Option<&'a str> {

branches/auto/src/libunicode/u_str.rs

@@ -0,0 +1,21 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+fn main() {
+    loop {
+        let _: i32 = loop { break }; //~ ERROR mismatched types
+    }
+    loop {
+        let _: i32 = 'inner: loop { break 'inner }; //~ ERROR mismatched types
+    }
+    loop {
+        let _: i32 = 'inner: loop { loop { break 'inner } }; //~ ERROR mismatched types
+    }
+}

branches/auto/src/test/compile-fail/loop-labeled-break-value.rs

@@ -0,0 +1,18 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+fn main() {
+    'outer: loop {
+        let _: i32 = loop { break 'outer };
+    }
+    'outer: loop {
+        let _: i32 = loop { loop { break 'outer } };
+    }
+}