Omit integer suffix when unnecessary

See PR # 21378 for context

5 files changed, 29 insertions, 29 deletions

diff --git a/src/libsyntax/ext/deriving/generic/mod.rs b/src/libsyntax/ext/deriving/generic/mod.rs
index 1b84d93738d..dc88ce6d190 100644
--- a/src/libsyntax/ext/deriving/generic/mod.rs
+++ b/src/libsyntax/ext/deriving/generic/mod.rs
@@ -770,7 +770,7 @@ impl<'a> MethodDef<'a> {
         let mut raw_fields = Vec::new(); // ~[[fields of self],
                                  // [fields of next Self arg], [etc]]
         let mut patterns = Vec::new();
-        for i in 0us..self_args.len() {
+        for i in 0..self_args.len() {
             let struct_path= cx.path(DUMMY_SP, vec!( type_ident ));
             let (pat, ident_expr) =
                 trait_.create_struct_pattern(cx,
@@ -859,8 +859,8 @@ impl<'a> MethodDef<'a> {
     ///             (&A2(ref __self_0),
     ///              &A2(ref __arg_1_0)) => (*__self_0).eq(&(*__arg_1_0)),
     ///             _ => {
-    ///                 let __self_vi = match *self { A1(..) => 0us, A2(..) => 1us };
-    ///                 let __arg_1_vi = match *__arg_1 { A1(..) => 0us, A2(..) => 1us };
+    ///                 let __self_vi = match *self { A1(..) => 0, A2(..) => 1 };
+    ///                 let __arg_1_vi = match *__arg_1 { A1(..) => 0, A2(..) => 1 };
     ///                 false
     ///             }
     ///         }
@@ -904,8 +904,8 @@ impl<'a> MethodDef<'a> {
     ///   (Variant2, Variant2, Variant2) => ... // delegate Matching on Variant2
     ///   ...
     ///   _ => {
-    ///     let __this_vi = match this { Variant1 => 0us, Variant2 => 1us, ... };
-    ///     let __that_vi = match that { Variant1 => 0us, Variant2 => 1us, ... };
+    ///     let __this_vi = match this { Variant1 => 0, Variant2 => 1, ... };
+    ///     let __that_vi = match that { Variant1 => 0, Variant2 => 1, ... };
     ///     ... // catch-all remainder can inspect above variant index values.
     ///   }
     /// }
@@ -1067,13 +1067,13 @@ impl<'a> MethodDef<'a> {
             //
             // ```
             // let __self0_vi = match   self {
-            //     A => 0us, B(..) => 1us, C(..) => 2us
+            //     A => 0, B(..) => 1, C(..) => 2
             // };
             // let __self1_vi = match __arg1 {
-            //     A => 0us, B(..) => 1us, C(..) => 2us
+            //     A => 0, B(..) => 1, C(..) => 2
             // };
             // let __self2_vi = match __arg2 {
-            //     A => 0us, B(..) => 1us, C(..) => 2us
+            //     A => 0, B(..) => 1, C(..) => 2
             // };
             // ```
             let mut index_let_stmts: Vec<P<ast::Stmt>> = Vec::new();
diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index 5736400313e..68723d32739 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -362,7 +362,7 @@ fn expand_mac_invoc<T, F, G>(mac: ast::Mac, span: codemap::Span,
         // in this file.
         // Token-tree macros:
         MacInvocTT(pth, tts, _) => {
-            if pth.segments.len() > 1us {
+            if pth.segments.len() > 1 {
                 fld.cx.span_err(pth.span,
                                 "expected macro name without module \
                                 separators");
@@ -931,7 +931,7 @@ fn expand_pat(p: P<ast::Pat>, fld: &mut MacroExpander) -> P<ast::Pat> {
             },
             _ => unreachable!()
         };
-        if pth.segments.len() > 1us {
+        if pth.segments.len() > 1 {
             fld.cx.span_err(pth.span, "expected macro name without module separators");
             return DummyResult::raw_pat(span);
         }
diff --git a/src/libsyntax/ext/quote.rs b/src/libsyntax/ext/quote.rs
index 0f617302c92..1d22f79bfb2 100644
--- a/src/libsyntax/ext/quote.rs
+++ b/src/libsyntax/ext/quote.rs
@@ -709,7 +709,7 @@ fn expand_tts(cx: &ExtCtxt, sp: Span, tts: &[ast::TokenTree])
     // try removing it when enough of them are gone.
 
     let mut p = cx.new_parser_from_tts(tts);
-    p.quote_depth += 1us;
+    p.quote_depth += 1;
 
     let cx_expr = p.parse_expr();
     if !p.eat(&token::Comma) {
diff --git a/src/libsyntax/ext/tt/macro_parser.rs b/src/libsyntax/ext/tt/macro_parser.rs
index e3211c7c337..69c7d10a82c 100644
--- a/src/libsyntax/ext/tt/macro_parser.rs
+++ b/src/libsyntax/ext/tt/macro_parser.rs
@@ -171,11 +171,11 @@ pub fn initial_matcher_pos(ms: Rc<Vec<TokenTree>>, sep: Option<Token>, lo: ByteP
         stack: vec![],
         top_elts: TtSeq(ms),
         sep: sep,
-        idx: 0us,
+        idx: 0,
         up: None,
         matches: matches,
-        match_lo: 0us,
-        match_cur: 0us,
+        match_lo: 0,
+        match_cur: 0,
         match_hi: match_idx_hi,
         sp_lo: lo
     }
@@ -238,7 +238,7 @@ pub fn nameize(p_s: &ParseSess, ms: &[TokenTree], res: &[Rc<NamedMatch>])
         }
     }
     let mut ret_val = HashMap::new();
-    let mut idx = 0us;
+    let mut idx = 0;
     for m in ms.iter() { n_rec(p_s, m, res, &mut ret_val, &mut idx) }
     ret_val
 }
@@ -383,7 +383,7 @@ pub fn parse(sess: &ParseSess,
                         if seq.op == ast::ZeroOrMore {
                             let mut new_ei = ei.clone();
                             new_ei.match_cur += seq.num_captures;
-                            new_ei.idx += 1us;
+                            new_ei.idx += 1;
                             //we specifically matched zero repeats.
                             for idx in ei.match_cur..ei.match_cur + seq.num_captures {
                                 (&mut new_ei.matches[idx]).push(Rc::new(MatchedSeq(vec![], sp)));
@@ -398,7 +398,7 @@ pub fn parse(sess: &ParseSess,
                         cur_eis.push(box MatcherPos {
                             stack: vec![],
                             sep: seq.separator.clone(),
-                            idx: 0us,
+                            idx: 0,
                             matches: matches,
                             match_lo: ei_t.match_cur,
                             match_cur: ei_t.match_cur,
@@ -442,20 +442,20 @@ pub fn parse(sess: &ParseSess,
 
         /* error messages here could be improved with links to orig. rules */
         if token_name_eq(&tok, &token::Eof) {
-            if eof_eis.len() == 1us {
+            if eof_eis.len() == 1 {
                 let mut v = Vec::new();
                 for dv in (&mut eof_eis[0]).matches.iter_mut() {
                     v.push(dv.pop().unwrap());
                 }
                 return Success(nameize(sess, ms, &v[]));
-            } else if eof_eis.len() > 1us {
+            } else if eof_eis.len() > 1 {
                 return Error(sp, "ambiguity: multiple successful parses".to_string());
             } else {
                 return Failure(sp, "unexpected end of macro invocation".to_string());
             }
         } else {
-            if (bb_eis.len() > 0us && next_eis.len() > 0us)
-                || bb_eis.len() > 1us {
+            if (bb_eis.len() > 0 && next_eis.len() > 0)
+                || bb_eis.len() > 1 {
                 let nts = bb_eis.iter().map(|ei| {
                     match ei.top_elts.get_tt(ei.idx) {
                       TtToken(_, MatchNt(bind, name, _, _)) => {
@@ -469,12 +469,12 @@ pub fn parse(sess: &ParseSess,
                     "local ambiguity: multiple parsing options: \
                      built-in NTs {} or {} other options.",
                     nts, next_eis.len()).to_string());
-            } else if bb_eis.len() == 0us && next_eis.len() == 0us {
+            } else if bb_eis.len() == 0 && next_eis.len() == 0 {
                 return Failure(sp, format!("no rules expected the token `{}`",
                             pprust::token_to_string(&tok)).to_string());
-            } else if next_eis.len() > 0us {
+            } else if next_eis.len() > 0 {
                 /* Now process the next token */
-                while next_eis.len() > 0us {
+                while next_eis.len() > 0 {
                     cur_eis.push(next_eis.pop().unwrap());
                 }
                 rdr.next_token();
@@ -488,7 +488,7 @@ pub fn parse(sess: &ParseSess,
                     let match_cur = ei.match_cur;
                     (&mut ei.matches[match_cur]).push(Rc::new(MatchedNonterminal(
                         parse_nt(&mut rust_parser, span, name_string.get()))));
-                    ei.idx += 1us;
+                    ei.idx += 1;
                     ei.match_cur += 1;
                   }
                   _ => panic!()
@@ -501,16 +501,16 @@ pub fn parse(sess: &ParseSess,
             }
         }
 
-        assert!(cur_eis.len() > 0us);
+        assert!(cur_eis.len() > 0);
     }
 }
 
 pub fn parse_nt(p: &mut Parser, sp: Span, name: &str) -> Nonterminal {
     match name {
         "tt" => {
-            p.quote_depth += 1us; //but in theory, non-quoted tts might be useful
+            p.quote_depth += 1; //but in theory, non-quoted tts might be useful
             let res = token::NtTT(P(p.parse_token_tree()));
-            p.quote_depth -= 1us;
+            p.quote_depth -= 1;
             return res;
         }
         _ => {}
diff --git a/src/libsyntax/ext/tt/transcribe.rs b/src/libsyntax/ext/tt/transcribe.rs
index 0bf20b8f3e1..83234e3b7a5 100644
--- a/src/libsyntax/ext/tt/transcribe.rs
+++ b/src/libsyntax/ext/tt/transcribe.rs
@@ -223,7 +223,7 @@ pub fn tt_next_token(r: &mut TtReader) -> TokenAndSpan {
                 r.repeat_len.pop();
             }
         } else { /* repeat */
-            *r.repeat_idx.last_mut().unwrap() += 1us;
+            *r.repeat_idx.last_mut().unwrap() += 1;
             r.stack.last_mut().unwrap().idx = 0;
             match r.stack.last().unwrap().sep.clone() {
                 Some(tk) => {