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librustc: Disallow "mut" from distributing over bindings.

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This is the backwards-incompatible part of per-binding-site "mut".
This commit is contained in:
Patrick Walton
2013-06-06 18:54:14 -07:00
committed by Corey Richardson
parent 1c0aa78481
commit f9b54541ee
32 changed files with 190 additions and 50 deletions
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9
src/libstd/vec.rs
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@@ -348,7 +348,8 @@ pub fn consume_reverse<T>(mut v: ~[T], f: &fn(uint, v: T)) {
pub fn dedup<T:Eq>(v: &mut ~[T]) {
unsafe {
if v.len() < 1 { return; }
let mut (last_written, next_to_read) = (0, 1);
let mut last_written = 0;
let mut next_to_read = 1;
do as_const_buf(*v) |p, ln| {
// We have a mutable reference to v, so we can make arbitrary
// changes. (cf. push and pop)
@@ -798,7 +799,8 @@ pub fn bsearch_elem<T:TotalOrd>(v: &[T], x: &T) -> Option<uint> {
* Convert a vector of pairs into a pair of vectors, by reference. As unzip().
*/
pub fn unzip_slice<T:Copy,U:Copy>(v: &[(T, U)]) -> (~[T], ~[U]) {
let mut (ts, us) = (~[], ~[]);
let mut ts = ~[];
let mut us = ~[];
for v.iter().advance |p| {
let (t, u) = copy *p;
ts.push(t);
@@ -816,7 +818,8 @@ pub fn unzip_slice<T:Copy,U:Copy>(v: &[(T, U)]) -> (~[T], ~[U]) {
* of the i-th tuple of the input vector.
*/
pub fn unzip<T,U>(v: ~[(T, U)]) -> (~[T], ~[U]) {
let mut (ts, us) = (~[], ~[]);
let mut ts = ~[];
let mut us = ~[];
do consume(v) |_i, p| {
let (t, u) = p;
ts.push(t);