remove all kind annotations from closures

src/libsyntax/ext/deriving/clone.rs

@@ -63,7 +63,7 @@ fn cs_clone(
         cx.ident_of("Clone"),
         cx.ident_of("clone"),
     ];
-    let subcall = |&: field: &FieldInfo| {
+    let subcall = |field: &FieldInfo| {
         let args = vec![cx.expr_addr_of(field.span, field.self_.clone())];
 
         cx.expr_call_global(field.span, fn_path.clone(), args)

src/libsyntax/ext/deriving/default.rs

@@ -57,7 +57,7 @@ fn default_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructur
         cx.ident_of("Default"),
         cx.ident_of("default")
     );
-    let default_call = |&: span| cx.expr_call_global(span, default_ident.clone(), Vec::new());
+    let default_call = |span| cx.expr_call_global(span, default_ident.clone(), Vec::new());
 
     return match *substr.fields {
         StaticStruct(_, ref summary) => {

src/libsyntax/ext/deriving/generic/mod.rs

@@ -957,7 +957,7 @@ impl<'a> MethodDef<'a> {
         // where each tuple has length = self_args.len()
         let mut match_arms: Vec<ast::Arm> = variants.iter().enumerate()
             .map(|(index, variant)| {
-                let mk_self_pat = |&: cx: &mut ExtCtxt, self_arg_name: &str| {
+                let mk_self_pat = |cx: &mut ExtCtxt, self_arg_name: &str| {
                     let (p, idents) = trait_.create_enum_variant_pattern(cx, type_ident,
                                                                          &**variant,
                                                                          self_arg_name,

src/libsyntax/ext/deriving/hash.rs

@@ -66,7 +66,7 @@ fn hash_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure)
         [ref state_expr] => state_expr,
         _ => cx.span_bug(trait_span, "incorrect number of arguments in `derive(Hash)`")
     };
-    let call_hash = |&: span, thing_expr| {
+    let call_hash = |span, thing_expr| {
         let hash_path = {
             let strs = vec![
                 cx.ident_of("std"),

src/libsyntax/ext/deriving/rand.rs

@@ -70,7 +70,7 @@ fn rand_substructure(cx: &mut ExtCtxt, trait_span: Span, substr: &Substructure)
         cx.ident_of("Rand"),
         cx.ident_of("rand")
     );
-    let rand_call = |&: cx: &mut ExtCtxt, span| {
+    let rand_call = |cx: &mut ExtCtxt, span| {
         cx.expr_call_global(span,
                             rand_ident.clone(),
                             vec!(rng.clone()))

src/libsyntax/ext/expand.rs

@@ -1089,7 +1089,7 @@ fn expand_annotatable(a: Annotatable,
                     // but that double-mut-borrows fld
                     let mut items: SmallVector<P<ast::Item>> = SmallVector::zero();
                     dec.expand(fld.cx, attr.span, &*attr.node.value, &**it,
-                               box |&mut: item| items.push(item));
+                               box |item| items.push(item));
                     decorator_items.extend(items.into_iter()
                         .flat_map(|item| expand_item(item, fld).into_iter()));
 
@@ -1850,7 +1850,7 @@ mod test {
             assert!((shouldmatch.len() == 0) ||
                     (varrefs.len() > *shouldmatch.iter().max().unwrap()));
             for (idx,varref) in varrefs.iter().enumerate() {
-                let print_hygiene_debug_info = |&:| {
+                let print_hygiene_debug_info = || {
                     // good lord, you can't make a path with 0 segments, can you?
                     let final_varref_ident = match varref.segments.last() {
                         Some(pathsegment) => pathsegment.identifier,

src/libsyntax/ext/format.rs

@@ -307,7 +307,7 @@ impl<'a, 'b> Context<'a, 'b> {
 
     fn trans_count(&self, c: parse::Count) -> P<ast::Expr> {
         let sp = self.fmtsp;
-        let count = |: c, arg| {
+        let count = |c, arg| {
             let mut path = Context::rtpath(self.ecx, "Count");
             path.push(self.ecx.ident_of(c));
             match arg {
@@ -353,7 +353,7 @@ impl<'a, 'b> Context<'a, 'b> {
             parse::NextArgument(ref arg) => {
                 // Translate the position
                 let pos = {
-                    let pos = |: c, arg| {
+                    let pos = |c, arg| {
                         let mut path = Context::rtpath(self.ecx, "Position");
                         path.push(self.ecx.ident_of(c));
                         match arg {
@@ -404,7 +404,7 @@ impl<'a, 'b> Context<'a, 'b> {
 
                 // Translate the format
                 let fill = self.ecx.expr_lit(sp, ast::LitChar(fill));
-                let align = |:name| {
+                let align = |name| {
                     let mut p = Context::rtpath(self.ecx, "Alignment");
                     p.push(self.ecx.ident_of(name));
                     self.ecx.path_global(sp, p)

src/libsyntax/ext/quote.rs

@@ -791,11 +791,11 @@ fn expand_parse_call(cx: &ExtCtxt,
                      tts: &[ast::TokenTree]) -> P<ast::Expr> {
     let (cx_expr, tts_expr) = expand_tts(cx, sp, tts);
 
-    let cfg_call = |&:| cx.expr_method_call(
+    let cfg_call = || cx.expr_method_call(
         sp, cx.expr_ident(sp, id_ext("ext_cx")),
         id_ext("cfg"), Vec::new());
 
-    let parse_sess_call = |&:| cx.expr_method_call(
+    let parse_sess_call = || cx.expr_method_call(
         sp, cx.expr_ident(sp, id_ext("ext_cx")),
         id_ext("parse_sess"), Vec::new());