Move replace and swap to std::mem. Get rid of std::util

Also move Void to std::any, move drop to std::mem and reexport in
prelude.

3 files changed, 7 insertions, 7 deletions

diff --git a/src/libsyntax/parse/lexer.rs b/src/libsyntax/parse/lexer.rs
index f6ebfbfcc3b..b711e95bc94 100644
--- a/src/libsyntax/parse/lexer.rs
+++ b/src/libsyntax/parse/lexer.rs
@@ -18,8 +18,8 @@ use parse::token::{str_to_ident};
 
 use std::cell::{Cell, RefCell};
 use std::char;
+use std::mem::replace;
 use std::num::from_str_radix;
-use std::util;
 
 pub use ext::tt::transcribe::{TtReader, new_tt_reader};
 
@@ -112,7 +112,7 @@ impl Reader for StringReader {
         let ret_val = {
             let mut peek_tok = self.peek_tok.borrow_mut();
             TokenAndSpan {
-                tok: util::replace(peek_tok.get(), token::UNDERSCORE),
+                tok: replace(peek_tok.get(), token::UNDERSCORE),
                 sp: self.peek_span.get(),
             }
         };
diff --git a/src/libsyntax/parse/obsolete.rs b/src/libsyntax/parse/obsolete.rs
index 091fbf82b0d..6f6f8d7d563 100644
--- a/src/libsyntax/parse/obsolete.rs
+++ b/src/libsyntax/parse/obsolete.rs
@@ -76,7 +76,7 @@ impl ParserObsoleteMethods for Parser {
         let (kind_str, desc) = match kind {
             ObsoleteSwap => (
                 "swap",
-                "use std::util::{swap, replace} instead"
+                "use std::mem::{swap, replace} instead"
             ),
             ObsoleteUnsafeBlock => (
                 "non-standalone unsafe block",
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index fd8b945a177..507debc8ce0 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -82,7 +82,7 @@ use opt_vec::OptVec;
 use std::cell::Cell;
 use std::hashmap::HashSet;
 use std::kinds::marker;
-use std::util;
+use std::mem::replace;
 use std::vec;
 
 #[allow(non_camel_case_types)]
@@ -735,7 +735,7 @@ impl Parser {
         let next = if self.buffer_start == self.buffer_end {
             self.reader.next_token()
         } else {
-            // Avoid token copies with `util::replace`.
+            // Avoid token copies with `replace`.
             let buffer_start = self.buffer_start as uint;
             let next_index = (buffer_start + 1) & 3 as uint;
             self.buffer_start = next_index as int;
@@ -744,7 +744,7 @@ impl Parser {
                 tok: token::UNDERSCORE,
                 sp: self.span,
             };
-            util::replace(&mut self.buffer[buffer_start], placeholder)
+            replace(&mut self.buffer[buffer_start], placeholder)
         };
         self.span = next.sp;
         self.token = next.tok;
@@ -753,7 +753,7 @@ impl Parser {
 
     // Advance the parser by one token and return the bumped token.
     pub fn bump_and_get(&mut self) -> token::Token {
-        let old_token = util::replace(&mut self.token, token::UNDERSCORE);
+        let old_token = replace(&mut self.token, token::UNDERSCORE);
         self.bump();
         old_token
     }