diff --git a/src/librustc/driver/session.rs b/src/librustc/driver/session.rs
index acc0aab659d5a..5419ed3791b0b 100644
--- a/src/librustc/driver/session.rs
+++ b/src/librustc/driver/session.rs
@@ -337,12 +337,12 @@ impl Session_ {
     }
 
     // pointless function, now...
-    pub fn str_of(@self, id: ast::ident) -> @str {
+    pub fn str_of(@self, id: ast::Ident) -> @str {
         token::ident_to_str(&id)
     }
 
     // pointless function, now...
-    pub fn ident_of(@self, st: &str) -> ast::ident {
+    pub fn ident_of(@self, st: &str) -> ast::Ident {
         token::str_to_ident(st)
     }
 
diff --git a/src/librustc/front/test.rs b/src/librustc/front/test.rs
index 906aa619fa3e3..e0914bcec6eaa 100644
--- a/src/librustc/front/test.rs
+++ b/src/librustc/front/test.rs
@@ -30,7 +30,7 @@ type node_id_gen = @fn() -> ast::NodeId;
 
 struct Test {
     span: Span,
-    path: ~[ast::ident],
+    path: ~[ast::Ident],
     bench: bool,
     ignore: bool,
     should_fail: bool
@@ -39,7 +39,7 @@ struct Test {
 struct TestCtxt {
     sess: session::Session,
     crate: @ast::Crate,
-    path: ~[ast::ident],
+    path: ~[ast::Ident],
     ext_cx: @ExtCtxt,
     testfns: ~[Test]
 }
@@ -383,7 +383,7 @@ fn nospan<T>(t: T) -> codemap::Spanned<T> {
     codemap::Spanned { node: t, span: dummy_sp() }
 }
 
-fn path_node(ids: ~[ast::ident]) -> ast::Path {
+fn path_node(ids: ~[ast::Ident]) -> ast::Path {
     ast::Path {
         span: dummy_sp(),
         global: false,
@@ -395,7 +395,7 @@ fn path_node(ids: ~[ast::ident]) -> ast::Path {
     }
 }
 
-fn path_node_global(ids: ~[ast::ident]) -> ast::Path {
+fn path_node_global(ids: ~[ast::Ident]) -> ast::Path {
     ast::Path {
         span: dummy_sp(),
         global: true,
diff --git a/src/librustc/metadata/csearch.rs b/src/librustc/metadata/csearch.rs
index 198c41539cb6e..a1a07d8bf3f84 100644
--- a/src/librustc/metadata/csearch.rs
+++ b/src/librustc/metadata/csearch.rs
@@ -25,7 +25,7 @@ use syntax::ast_map;
 use syntax::diagnostic::expect;
 
 pub struct StaticMethodInfo {
-    ident: ast::ident,
+    ident: ast::Ident,
     def_id: ast::def_id,
     purity: ast::purity
 }
@@ -52,7 +52,7 @@ pub fn each_lang_item(cstore: @mut cstore::CStore,
 /// Iterates over each child of the given item.
 pub fn each_child_of_item(cstore: @mut cstore::CStore,
                           def_id: ast::def_id,
-                          callback: &fn(decoder::DefLike, ast::ident)) {
+                          callback: &fn(decoder::DefLike, ast::Ident)) {
     let crate_data = cstore::get_crate_data(cstore, def_id.crate);
     let get_crate_data: decoder::GetCrateDataCb = |cnum| {
         cstore::get_crate_data(cstore, cnum)
@@ -68,7 +68,7 @@ pub fn each_child_of_item(cstore: @mut cstore::CStore,
 pub fn each_top_level_item_of_crate(cstore: @mut cstore::CStore,
                                     cnum: ast::CrateNum,
                                     callback: &fn(decoder::DefLike,
-                                                  ast::ident)) {
+                                                  ast::Ident)) {
     let crate_data = cstore::get_crate_data(cstore, cnum);
     let get_crate_data: decoder::GetCrateDataCb = |cnum| {
         cstore::get_crate_data(cstore, cnum)
@@ -129,7 +129,7 @@ pub fn get_method(tcx: ty::ctxt, def: ast::def_id) -> ty::Method {
 
 pub fn get_method_name_and_explicit_self(cstore: @mut cstore::CStore,
                                          def: ast::def_id)
-                                     -> (ast::ident, ast::explicit_self_)
+                                     -> (ast::Ident, ast::explicit_self_)
 {
     let cdata = cstore::get_crate_data(cstore, def.crate);
     decoder::get_method_name_and_explicit_self(cstore.intr, cdata, def.node)
@@ -156,7 +156,7 @@ pub fn get_supertraits(tcx: ty::ctxt, def: ast::def_id) -> ~[@ty::TraitRef] {
 }
 
 pub fn get_type_name_if_impl(cstore: @mut cstore::CStore, def: ast::def_id)
-                          -> Option<ast::ident> {
+                          -> Option<ast::Ident> {
     let cdata = cstore::get_crate_data(cstore, def.crate);
     decoder::get_type_name_if_impl(cdata, def.node)
 }
@@ -245,7 +245,7 @@ pub fn get_impl_vtables(tcx: ty::ctxt,
 
 pub fn get_impl_method(cstore: @mut cstore::CStore,
                        def: ast::def_id,
-                       mname: ast::ident)
+                       mname: ast::Ident)
                     -> Option<ast::def_id> {
     let cdata = cstore::get_crate_data(cstore, def.crate);
     decoder::get_impl_method(cstore.intr, cdata, def.node, mname)
diff --git a/src/librustc/metadata/decoder.rs b/src/librustc/metadata/decoder.rs
index 592ee1b0a6338..0200ca49bad9a 100644
--- a/src/librustc/metadata/decoder.rs
+++ b/src/librustc/metadata/decoder.rs
@@ -312,12 +312,12 @@ fn item_path(item_doc: ebml::Doc) -> ast_map::path {
     return result;
 }
 
-fn item_name(intr: @ident_interner, item: ebml::Doc) -> ast::ident {
+fn item_name(intr: @ident_interner, item: ebml::Doc) -> ast::Ident {
     let name = reader::get_doc(item, tag_paths_data_name);
     let string = name.as_str_slice();
     match intr.find_equiv(&string) {
         None => token::str_to_ident(string),
-        Some(val) => ast::new_ident(val),
+        Some(val) => ast::Ident::new(val),
     }
 }
 
@@ -452,7 +452,7 @@ pub fn get_impl_vtables(cdata: Cmd,
 
 
 pub fn get_impl_method(intr: @ident_interner, cdata: Cmd, id: ast::NodeId,
-                       name: ast::ident) -> Option<ast::def_id> {
+                       name: ast::Ident) -> Option<ast::def_id> {
     let items = reader::get_doc(reader::Doc(cdata.data), tag_items);
     let mut found = None;
     do reader::tagged_docs(find_item(id, items), tag_item_impl_method) |mid| {
@@ -706,7 +706,7 @@ fn each_child_of_item_or_crate(intr: @ident_interner,
                                cdata: Cmd,
                                item_doc: ebml::Doc,
                                get_crate_data: GetCrateDataCb,
-                               callback: &fn(DefLike, ast::ident)) {
+                               callback: &fn(DefLike, ast::Ident)) {
     // Iterate over all children.
     let _ = do reader::tagged_docs(item_doc, tag_mod_child) |child_info_doc| {
         let child_def_id = reader::with_doc_data(child_info_doc,
@@ -829,7 +829,7 @@ pub fn each_child_of_item(intr: @ident_interner,
                           cdata: Cmd,
                           id: ast::NodeId,
                           get_crate_data: GetCrateDataCb,
-                          callback: &fn(DefLike, ast::ident)) {
+                          callback: &fn(DefLike, ast::Ident)) {
     // Find the item.
     let root_doc = reader::Doc(cdata.data);
     let items = reader::get_doc(root_doc, tag_items);
@@ -849,7 +849,7 @@ pub fn each_child_of_item(intr: @ident_interner,
 pub fn each_top_level_item_of_crate(intr: @ident_interner,
                                     cdata: Cmd,
                                     get_crate_data: GetCrateDataCb,
-                                    callback: &fn(DefLike, ast::ident)) {
+                                    callback: &fn(DefLike, ast::Ident)) {
     let root_doc = reader::Doc(cdata.data);
     let misc_info_doc = reader::get_doc(root_doc, tag_misc_info);
     let crate_items_doc = reader::get_doc(misc_info_doc,
@@ -995,7 +995,7 @@ pub fn get_impl(intr: @ident_interner, cdata: Cmd, impl_id: ast::NodeId,
 pub fn get_method_name_and_explicit_self(
     intr: @ident_interner,
     cdata: Cmd,
-    id: ast::NodeId) -> (ast::ident, ast::explicit_self_)
+    id: ast::NodeId) -> (ast::Ident, ast::explicit_self_)
 {
     let method_doc = lookup_item(id, cdata.data);
     let name = item_name(intr, method_doc);
@@ -1093,7 +1093,7 @@ pub fn get_supertraits(cdata: Cmd, id: ast::NodeId, tcx: ty::ctxt)
 }
 
 pub fn get_type_name_if_impl(cdata: Cmd,
-                             node_id: ast::NodeId) -> Option<ast::ident> {
+                             node_id: ast::NodeId) -> Option<ast::Ident> {
     let item = lookup_item(node_id, cdata.data);
     if item_family(item) != Impl {
         return None;
@@ -1352,7 +1352,7 @@ pub fn get_crate_attributes(data: @~[u8]) -> ~[ast::Attribute] {
 #[deriving(Clone)]
 pub struct CrateDep {
     cnum: ast::CrateNum,
-    name: ast::ident,
+    name: ast::Ident,
     vers: @str,
     hash: @str
 }
diff --git a/src/librustc/metadata/encoder.rs b/src/librustc/metadata/encoder.rs
index c6efeaec9b334..d2ad788964994 100644
--- a/src/librustc/metadata/encoder.rs
+++ b/src/librustc/metadata/encoder.rs
@@ -102,13 +102,13 @@ pub fn reachable(ecx: &EncodeContext, id: NodeId) -> bool {
 
 fn encode_name(ecx: &EncodeContext,
                ebml_w: &mut writer::Encoder,
-               name: ident) {
+               name: Ident) {
     ebml_w.wr_tagged_str(tag_paths_data_name, ecx.tcx.sess.str_of(name));
 }
 
 fn encode_impl_type_basename(ecx: &EncodeContext,
                              ebml_w: &mut writer::Encoder,
-                             name: ident) {
+                             name: Ident) {
     ebml_w.wr_tagged_str(tag_item_impl_type_basename,
                          ecx.tcx.sess.str_of(name));
 }
@@ -135,9 +135,9 @@ struct entry<T> {
 }
 
 fn add_to_index(ebml_w: &mut writer::Encoder,
-                path: &[ident],
+                path: &[Ident],
                 index: &mut ~[entry<~str>],
-                name: ident) {
+                name: Ident) {
     let mut full_path = ~[];
     full_path.push_all(path);
     full_path.push(name);
@@ -379,7 +379,7 @@ fn encode_reexported_static_method(ecx: &EncodeContext,
                                    ebml_w: &mut writer::Encoder,
                                    exp: &middle::resolve::Export2,
                                    method_def_id: def_id,
-                                   method_ident: ident) {
+                                   method_ident: Ident) {
     debug!("(encode reexported static method) %s::%s",
             exp.name, ecx.tcx.sess.str_of(method_ident));
     ebml_w.start_tag(tag_items_data_item_reexport);
@@ -541,7 +541,7 @@ fn encode_info_for_mod(ecx: &EncodeContext,
                        md: &_mod,
                        id: NodeId,
                        path: &[ast_map::path_elt],
-                       name: ident,
+                       name: Ident,
                        vis: visibility) {
     ebml_w.start_tag(tag_items_data_item);
     encode_def_id(ebml_w, local_def(id));
@@ -700,7 +700,7 @@ fn encode_info_for_struct(ecx: &EncodeContext,
 fn encode_info_for_struct_ctor(ecx: &EncodeContext,
                                ebml_w: &mut writer::Encoder,
                                path: &[ast_map::path_elt],
-                               name: ast::ident,
+                               name: ast::Ident,
                                ctor_id: NodeId,
                                index: @mut ~[entry<i64>]) {
     index.push(entry { val: ctor_id as i64, pos: ebml_w.writer.tell() });
diff --git a/src/librustc/metadata/tydecode.rs b/src/librustc/metadata/tydecode.rs
index f5bad88b1ca66..3e520522ba5ad 100644
--- a/src/librustc/metadata/tydecode.rs
+++ b/src/librustc/metadata/tydecode.rs
@@ -90,13 +90,13 @@ fn scan<R>(st: &mut PState, is_last: &fn(char) -> bool,
     return op(st.data.slice(start_pos, end_pos));
 }
 
-pub fn parse_ident(st: &mut PState, last: char) -> ast::ident {
+pub fn parse_ident(st: &mut PState, last: char) -> ast::Ident {
     fn is_last(b: char, c: char) -> bool { return c == b; }
     return parse_ident_(st, |a| is_last(last, a) );
 }
 
 fn parse_ident_(st: &mut PState, is_last: @fn(char) -> bool) ->
-   ast::ident {
+   ast::Ident {
     let rslt = scan(st, is_last, str::from_bytes);
     return st.tcx.sess.ident_of(rslt);
 }
@@ -130,7 +130,7 @@ pub fn parse_trait_ref_data(data: &[u8], crate_num: int, pos: uint, tcx: ty::ctx
 }
 
 fn parse_path(st: &mut PState) -> @ast::Path {
-    let mut idents: ~[ast::ident] = ~[];
+    let mut idents: ~[ast::Ident] = ~[];
     fn is_last(c: char) -> bool { return c == '(' || c == ':'; }
     idents.push(parse_ident_(st, is_last));
     loop {
diff --git a/src/librustc/middle/astencode.rs b/src/librustc/middle/astencode.rs
index e38ac4feb9cef..faf4ac76a039d 100644
--- a/src/librustc/middle/astencode.rs
+++ b/src/librustc/middle/astencode.rs
@@ -1256,7 +1256,7 @@ trait fake_ext_ctxt {
     fn cfg(&self) -> ast::CrateConfig;
     fn parse_sess(&self) -> @mut parse::ParseSess;
     fn call_site(&self) -> Span;
-    fn ident_of(&self, st: &str) -> ast::ident;
+    fn ident_of(&self, st: &str) -> ast::Ident;
 }
 
 #[cfg(test)]
@@ -1273,7 +1273,7 @@ impl fake_ext_ctxt for fake_session {
             expn_info: None
         }
     }
-    fn ident_of(&self, st: &str) -> ast::ident {
+    fn ident_of(&self, st: &str) -> ast::Ident {
         token::str_to_ident(st)
     }
 }
diff --git a/src/librustc/middle/cfg/construct.rs b/src/librustc/middle/cfg/construct.rs
index 282292a2ac09c..a8de2c9e77325 100644
--- a/src/librustc/middle/cfg/construct.rs
+++ b/src/librustc/middle/cfg/construct.rs
@@ -488,7 +488,7 @@ impl CFGBuilder {
 
     fn find_scope(&self,
                   expr: @ast::expr,
-                  label: Option<ast::ident>) -> LoopScope {
+                  label: Option<ast::Ident>) -> LoopScope {
         match label {
             None => {
                 return *self.loop_scopes.last();
diff --git a/src/librustc/middle/dataflow.rs b/src/librustc/middle/dataflow.rs
index 46b6d2214ae49..42dae2017bc8b 100644
--- a/src/librustc/middle/dataflow.rs
+++ b/src/librustc/middle/dataflow.rs
@@ -867,7 +867,7 @@ impl<'self, O:DataFlowOperator> PropagationContext<'self, O> {
 
     fn find_scope<'a>(&self,
                       expr: @ast::expr,
-                      label: Option<ast::ident>,
+                      label: Option<ast::Ident>,
                       loop_scopes: &'a mut ~[LoopScope]) -> &'a mut LoopScope {
         let index = match label {
             None => {
diff --git a/src/librustc/middle/lint.rs b/src/librustc/middle/lint.rs
index d60781dcc097d..1ad6e409fc364 100644
--- a/src/librustc/middle/lint.rs
+++ b/src/librustc/middle/lint.rs
@@ -1033,7 +1033,7 @@ fn lint_path_statement() -> @mut OuterLint {
 }
 
 fn check_item_non_camel_case_types(cx: &Context, it: &ast::item) {
-    fn is_camel_case(cx: ty::ctxt, ident: ast::ident) -> bool {
+    fn is_camel_case(cx: ty::ctxt, ident: ast::Ident) -> bool {
         let ident = cx.sess.str_of(ident);
         assert!(!ident.is_empty());
         let ident = ident.trim_chars(&'_');
@@ -1044,7 +1044,7 @@ fn check_item_non_camel_case_types(cx: &Context, it: &ast::item) {
             !ident.contains_char('_')
     }
 
-    fn check_case(cx: &Context, sort: &str, ident: ast::ident, span: Span) {
+    fn check_case(cx: &Context, sort: &str, ident: ast::Ident, span: Span) {
         if !is_camel_case(cx.tcx, ident) {
             cx.span_lint(
                 non_camel_case_types, span,
diff --git a/src/librustc/middle/liveness.rs b/src/librustc/middle/liveness.rs
index b79f6299e26cf..cbfab25f13371 100644
--- a/src/librustc/middle/liveness.rs
+++ b/src/librustc/middle/liveness.rs
@@ -227,13 +227,13 @@ enum LocalKind {
 
 struct LocalInfo {
     id: NodeId,
-    ident: ident,
+    ident: Ident,
     is_mutbl: bool,
     kind: LocalKind,
 }
 
 enum VarKind {
-    Arg(NodeId, ident),
+    Arg(NodeId, Ident),
     Local(LocalInfo),
     ImplicitRet
 }
@@ -756,7 +756,7 @@ impl Liveness {
     }
 
     pub fn find_loop_scope(&self,
-                           opt_label: Option<ident>,
+                           opt_label: Option<Ident>,
                            id: NodeId,
                            sp: Span)
                            -> NodeId {
diff --git a/src/librustc/middle/mem_categorization.rs b/src/librustc/middle/mem_categorization.rs
index 21a2256b55437..1fc670312f0c6 100644
--- a/src/librustc/middle/mem_categorization.rs
+++ b/src/librustc/middle/mem_categorization.rs
@@ -99,7 +99,7 @@ pub enum InteriorKind {
 
 #[deriving(Eq, IterBytes)]
 pub enum FieldName {
-    NamedField(ast::ident),
+    NamedField(ast::Ident),
     PositionalField(uint)
 }
 
@@ -613,7 +613,7 @@ impl mem_categorization_ctxt {
     pub fn cat_field<N:ast_node>(&self,
                                  node: N,
                                  base_cmt: cmt,
-                                 f_name: ast::ident,
+                                 f_name: ast::Ident,
                                  f_ty: ty::t)
                                  -> cmt {
         @cmt_ {
@@ -1058,7 +1058,7 @@ impl mem_categorization_ctxt {
 /// an enum to determine which variant is in use.
 pub fn field_mutbl(tcx: ty::ctxt,
                    base_ty: ty::t,
-                   f_name: ast::ident,
+                   f_name: ast::Ident,
                    node_id: ast::NodeId)
                 -> Option<ast::mutability> {
     // Need to refactor so that struct/enum fields can be treated uniformly.
diff --git a/src/librustc/middle/pat_util.rs b/src/librustc/middle/pat_util.rs
index 253d234afcfc4..a41ab09fdbb79 100644
--- a/src/librustc/middle/pat_util.rs
+++ b/src/librustc/middle/pat_util.rs
@@ -16,7 +16,7 @@ use syntax::ast::*;
 use syntax::ast_util::{path_to_ident, walk_pat};
 use syntax::codemap::Span;
 
-pub type PatIdMap = HashMap<ident, NodeId>;
+pub type PatIdMap = HashMap<Ident, NodeId>;
 
 // This is used because same-named variables in alternative patterns need to
 // use the NodeId of their namesake in the first pattern.
diff --git a/src/librustc/middle/privacy.rs b/src/librustc/middle/privacy.rs
index 5fa85674f9a1a..5c7ab126c9160 100644
--- a/src/librustc/middle/privacy.rs
+++ b/src/librustc/middle/privacy.rs
@@ -20,7 +20,7 @@ use middle::typeck::{method_static, method_object};
 use std::util::ignore;
 use syntax::ast::{decl_item, def, def_fn, def_id, def_static_method};
 use syntax::ast::{def_variant, expr_field, expr_method_call, expr_path};
-use syntax::ast::{expr_struct, expr_unary, ident, inherited, item_enum};
+use syntax::ast::{expr_struct, expr_unary, Ident, inherited, item_enum};
 use syntax::ast::{item_foreign_mod, item_fn, item_impl, item_struct};
 use syntax::ast::{item_trait, LOCAL_CRATE, NodeId, pat_struct, Path};
 use syntax::ast::{private, provided, public, required, stmt_decl, visibility};
@@ -203,7 +203,7 @@ impl PrivacyVisitor {
     }
 
     // Checks that a private field is in scope.
-    fn check_field(&mut self, span: Span, id: ast::def_id, ident: ast::ident) {
+    fn check_field(&mut self, span: Span, id: ast::def_id, ident: ast::Ident) {
         let fields = ty::lookup_struct_fields(self.tcx, id);
         for field in fields.iter() {
             if field.ident != ident { loop; }
@@ -216,7 +216,7 @@ impl PrivacyVisitor {
     }
 
     // Given the ID of a method, checks to ensure it's in scope.
-    fn check_method_common(&mut self, span: Span, method_id: def_id, name: &ident) {
+    fn check_method_common(&mut self, span: Span, method_id: def_id, name: &Ident) {
         // If the method is a default method, we need to use the def_id of
         // the default implementation.
         // Having to do this this is really unfortunate.
@@ -280,7 +280,7 @@ impl PrivacyVisitor {
     }
 
     // Checks that a private method is in scope.
-    fn check_method(&mut self, span: Span, origin: &method_origin, ident: ast::ident) {
+    fn check_method(&mut self, span: Span, origin: &method_origin, ident: ast::Ident) {
         match *origin {
             method_static(method_id) => {
                 self.check_method_common(span, method_id, &ident)
diff --git a/src/librustc/middle/resolve.rs b/src/librustc/middle/resolve.rs
index 303a534974dd5..05545862f9008 100644
--- a/src/librustc/middle/resolve.rs
+++ b/src/librustc/middle/resolve.rs
@@ -51,7 +51,7 @@ pub struct binding_info {
 }
 
 // Map from the name in a pattern to its binding mode.
-pub type BindingMap = HashMap<ident,binding_info>;
+pub type BindingMap = HashMap<Ident,binding_info>;
 
 // Trait method resolution
 pub type TraitMap = HashMap<NodeId,@mut ~[def_id]>;
@@ -162,7 +162,7 @@ impl Visitor<()> for ResolveVisitor {
 
 /// Contains data for specific types of import directives.
 pub enum ImportDirectiveSubclass {
-    SingleImport(ident /* target */, ident /* source */),
+    SingleImport(Ident /* target */, Ident /* source */),
     GlobImport
 }
 
@@ -311,7 +311,7 @@ pub enum DuplicateCheckingMode {
 
 /// One local scope.
 pub struct Rib {
-    bindings: @mut HashMap<ident, DefLike>,
+    bindings: @mut HashMap<Ident, DefLike>,
     self_binding: @mut Option<DefLike>,
     kind: RibKind,
 }
@@ -329,7 +329,7 @@ impl Rib {
 /// One import directive.
 pub struct ImportDirective {
     privacy: Privacy,
-    module_path: ~[ident],
+    module_path: ~[Ident],
     subclass: @ImportDirectiveSubclass,
     span: Span,
     id: NodeId,
@@ -337,7 +337,7 @@ pub struct ImportDirective {
 
 impl ImportDirective {
     pub fn new(privacy: Privacy,
-               module_path: ~[ident],
+               module_path: ~[Ident],
                subclass: @ImportDirectiveSubclass,
                span: Span,
                id: NodeId)
@@ -425,7 +425,7 @@ impl ImportResolution {
 /// The link from a module up to its nearest parent node.
 pub enum ParentLink {
     NoParentLink,
-    ModuleParentLink(@mut Module, ident),
+    ModuleParentLink(@mut Module, Ident),
     BlockParentLink(@mut Module, NodeId)
 }
 
@@ -445,12 +445,12 @@ pub struct Module {
     def_id: Option<def_id>,
     kind: ModuleKind,
 
-    children: @mut HashMap<ident, @mut NameBindings>,
+    children: @mut HashMap<Ident, @mut NameBindings>,
     imports: @mut ~[@ImportDirective],
 
     // The external module children of this node that were declared with
     // `extern mod`.
-    external_module_children: @mut HashMap<ident, @mut Module>,
+    external_module_children: @mut HashMap<Ident, @mut Module>,
 
     // The anonymous children of this node. Anonymous children are pseudo-
     // modules that are implicitly created around items contained within
@@ -469,7 +469,7 @@ pub struct Module {
     anonymous_children: @mut HashMap<NodeId,@mut Module>,
 
     // The status of resolving each import in this module.
-    import_resolutions: @mut HashMap<ident, @mut ImportResolution>,
+    import_resolutions: @mut HashMap<Ident, @mut ImportResolution>,
 
     // The number of unresolved globs that this module exports.
     glob_count: uint,
@@ -759,7 +759,7 @@ pub fn NameBindings() -> NameBindings {
 
 /// Interns the names of the primitive types.
 pub struct PrimitiveTypeTable {
-    primitive_types: HashMap<ident,prim_ty>,
+    primitive_types: HashMap<Ident,prim_ty>,
 }
 
 impl PrimitiveTypeTable {
@@ -873,7 +873,7 @@ pub struct Resolver {
 
     graph_root: @mut NameBindings,
 
-    method_map: @mut HashMap<ident, HashSet<def_id>>,
+    method_map: @mut HashMap<Ident, HashSet<def_id>>,
     structs: HashSet<def_id>,
 
     // The number of imports that are currently unresolved.
@@ -900,9 +900,9 @@ pub struct Resolver {
     current_trait_refs: Option<~[def_id]>,
 
     // The ident for the keyword "self".
-    self_ident: ident,
+    self_ident: Ident,
     // The ident for the non-keyword "Self".
-    type_self_ident: ident,
+    type_self_ident: Ident,
 
     // The idents for the primitive types.
     primitive_type_table: @PrimitiveTypeTable,
@@ -1017,7 +1017,7 @@ impl Resolver {
      * a block, fails.
      */
     pub fn add_child(@mut self,
-                     name: ident,
+                     name: Ident,
                      reduced_graph_parent: ReducedGraphParent,
                      duplicate_checking_mode: DuplicateCheckingMode,
                      // For printing errors
@@ -1153,7 +1153,7 @@ impl Resolver {
         return false;
     }
 
-    pub fn get_parent_link(@mut self, parent: ReducedGraphParent, name: ident)
+    pub fn get_parent_link(@mut self, parent: ReducedGraphParent, name: Ident)
                            -> ParentLink {
         match parent {
             ModuleReducedGraphParent(module_) => {
@@ -1659,7 +1659,7 @@ impl Resolver {
                            visibility: ast::visibility,
                            child_name_bindings: @mut NameBindings,
                            final_ident: &str,
-                           ident: ident,
+                           ident: Ident,
                            new_parent: ReducedGraphParent) {
         let privacy = visibility_to_privacy(visibility);
         match def {
@@ -1783,7 +1783,7 @@ impl Resolver {
     fn build_reduced_graph_for_external_crate_def(@mut self,
                                                   root: @mut Module,
                                                   def_like: DefLike,
-                                                  ident: ident) {
+                                                  ident: Ident) {
         match def_like {
             DlDef(def) => {
                 // Add the new child item, if necessary.
@@ -1962,7 +1962,7 @@ impl Resolver {
     pub fn build_import_directive(@mut self,
                                   privacy: Privacy,
                                   module_: @mut Module,
-                                  module_path: ~[ident],
+                                  module_path: ~[Ident],
                                   subclass: @ImportDirectiveSubclass,
                                   span: Span,
                                   id: NodeId) {
@@ -2107,7 +2107,7 @@ impl Resolver {
         }
     }
 
-    pub fn idents_to_str(@mut self, idents: &[ident]) -> ~str {
+    pub fn idents_to_str(@mut self, idents: &[Ident]) -> ~str {
         let mut first = true;
         let mut result = ~"";
         for ident in idents.iter() {
@@ -2122,7 +2122,7 @@ impl Resolver {
     }
 
     fn path_idents_to_str(@mut self, path: &Path) -> ~str {
-        let identifiers: ~[ast::ident] = path.segments
+        let identifiers: ~[ast::Ident] = path.segments
                                              .iter()
                                              .map(|seg| seg.identifier)
                                              .collect();
@@ -2139,7 +2139,7 @@ impl Resolver {
     }
 
     pub fn import_path_to_str(@mut self,
-                              idents: &[ident],
+                              idents: &[Ident],
                               subclass: ImportDirectiveSubclass)
                               -> @str {
         if idents.is_empty() {
@@ -2262,8 +2262,8 @@ impl Resolver {
     pub fn resolve_single_import(@mut self,
                                  module_: @mut Module,
                                  containing_module: @mut Module,
-                                 target: ident,
-                                 source: ident,
+                                 target: Ident,
+                                 source: Ident,
                                  directive: &ImportDirective)
                                  -> ResolveResult<()> {
         debug!("(resolving single import) resolving `%s` = `%s::%s` from \
@@ -2620,7 +2620,7 @@ impl Resolver {
     /// Resolves the given module path from the given root `module_`.
     pub fn resolve_module_path_from_root(@mut self,
                                          module_: @mut Module,
-                                         module_path: &[ident],
+                                         module_path: &[Ident],
                                          index: uint,
                                          span: Span,
                                          mut name_search_type: NameSearchType)
@@ -2729,7 +2729,7 @@ impl Resolver {
     /// rooted at the given module.
     pub fn resolve_module_path(@mut self,
                                module_: @mut Module,
-                               module_path: &[ident],
+                               module_path: &[Ident],
                                use_lexical_scope: UseLexicalScopeFlag,
                                span: Span,
                                name_search_type: NameSearchType)
@@ -2822,7 +2822,7 @@ impl Resolver {
     /// import resolution.
     pub fn resolve_item_in_lexical_scope(@mut self,
                                          module_: @mut Module,
-                                         name: ident,
+                                         name: Ident,
                                          namespace: Namespace,
                                          search_through_modules:
                                          SearchThroughModulesFlag)
@@ -2951,7 +2951,7 @@ impl Resolver {
     /// Resolves a module name in the current lexical scope.
     pub fn resolve_module_in_lexical_scope(@mut self,
                                            module_: @mut Module,
-                                           name: ident)
+                                           name: Ident)
                                            -> ResolveResult<@mut Module> {
         // If this module is an anonymous module, resolve the item in the
         // lexical scope. Otherwise, resolve the item from the crate root.
@@ -3038,7 +3038,7 @@ impl Resolver {
     /// (b) some chain of `super::`.
     pub fn resolve_module_prefix(@mut self,
                                  module_: @mut Module,
-                                 module_path: &[ident])
+                                 module_path: &[Ident])
                                  -> ResolveResult<ModulePrefixResult> {
         // Start at the current module if we see `self` or `super`, or at the
         // top of the crate otherwise.
@@ -3081,7 +3081,7 @@ impl Resolver {
     /// the name.
     pub fn resolve_name_in_module(@mut self,
                                   module_: @mut Module,
-                                  name: ident,
+                                  name: Ident,
                                   namespace: Namespace,
                                   name_search_type: NameSearchType)
                                   -> ResolveResult<Target> {
@@ -3273,7 +3273,7 @@ impl Resolver {
 
     pub fn add_exports_of_namebindings(@mut self,
                                        exports2: &mut ~[Export2],
-                                       ident: ident,
+                                       ident: Ident,
                                        namebindings: @mut NameBindings,
                                        ns: Namespace,
                                        reexport: bool) {
@@ -3344,7 +3344,7 @@ impl Resolver {
     // generate a fake "implementation scope" containing all the
     // implementations thus found, for compatibility with old resolve pass.
 
-    pub fn with_scope(@mut self, name: Option<ident>, f: &fn()) {
+    pub fn with_scope(@mut self, name: Option<Ident>, f: &fn()) {
         let orig_module = self.current_module;
 
         // Move down in the graph.
@@ -3498,7 +3498,7 @@ impl Resolver {
 
     pub fn search_ribs(@mut self,
                        ribs: &mut ~[@Rib],
-                       name: ident,
+                       name: Ident,
                        span: Span,
                        allow_capturing_self: AllowCapturingSelfFlag)
                        -> Option<DefLike> {
@@ -3892,7 +3892,7 @@ impl Resolver {
                           generics: &Generics,
                           fields: &[@struct_field],
                           visitor: &mut ResolveVisitor) {
-        let mut ident_map: HashMap<ast::ident,@struct_field> = HashMap::new();
+        let mut ident_map: HashMap<ast::Ident,@struct_field> = HashMap::new();
         for &field in fields.iter() {
             match field.node.kind {
                 named_field(ident, _) => {
@@ -4035,7 +4035,7 @@ impl Resolver {
     pub fn resolve_module(@mut self,
                           module_: &_mod,
                           _span: Span,
-                          _name: ident,
+                          _name: Ident,
                           id: NodeId,
                           visitor: &mut ResolveVisitor) {
         // Write the implementations in scope into the module metadata.
@@ -4272,7 +4272,7 @@ impl Resolver {
                            mutability: Mutability,
                            // Maps idents to the node ID for the (outermost)
                            // pattern that binds them
-                           bindings_list: Option<@mut HashMap<ident,NodeId>>,
+                           bindings_list: Option<@mut HashMap<Ident,NodeId>>,
                            visitor: &mut ResolveVisitor) {
         let pat_id = pattern.id;
         do walk_pat(pattern) |pattern| {
@@ -4517,7 +4517,7 @@ impl Resolver {
         };
     }
 
-    pub fn resolve_bare_identifier_pattern(@mut self, name: ident)
+    pub fn resolve_bare_identifier_pattern(@mut self, name: Ident)
                                            ->
                                            BareIdentifierPatternResolution {
         match self.resolve_item_in_lexical_scope(self.current_module,
@@ -4604,7 +4604,7 @@ impl Resolver {
     }
 
     pub fn resolve_identifier(@mut self,
-                              identifier: ident,
+                              identifier: Ident,
                               namespace: Namespace,
                               check_ribs: bool,
                               span: Span)
@@ -4629,7 +4629,7 @@ impl Resolver {
     // FIXME #4952: Merge me with resolve_name_in_module?
     pub fn resolve_definition_of_name_in_module(@mut self,
                                                 containing_module: @mut Module,
-                                                name: ident,
+                                                name: Ident,
                                                 namespace: Namespace,
                                                 xray: XrayFlag)
                                                 -> NameDefinition {
@@ -4702,7 +4702,7 @@ impl Resolver {
         return NoNameDefinition;
     }
 
-    pub fn intern_module_part_of_path(@mut self, path: &Path) -> ~[ident] {
+    pub fn intern_module_part_of_path(@mut self, path: &Path) -> ~[Ident] {
         let mut module_path_idents = ~[];
         for (index, segment) in path.segments.iter().enumerate() {
             if index == path.segments.len() - 1 {
@@ -4829,7 +4829,7 @@ impl Resolver {
     }
 
     pub fn resolve_identifier_in_local_ribs(@mut self,
-                                            ident: ident,
+                                            ident: Ident,
                                             namespace: Namespace,
                                             span: Span)
                                             -> Option<def> {
@@ -4895,7 +4895,7 @@ impl Resolver {
     }
 
     pub fn resolve_item_by_identifier_in_lexical_scope(@mut self,
-                                                       ident: ident,
+                                                       ident: Ident,
                                                        namespace: Namespace)
                                                        -> Option<def> {
         // Check the items.
@@ -5273,7 +5273,7 @@ impl Resolver {
         }
     }
 
-    pub fn search_for_traits_containing_method(@mut self, name: ident)
+    pub fn search_for_traits_containing_method(@mut self, name: Ident)
                                                -> ~[def_id] {
         debug!("(searching for traits containing method) looking for '%s'",
                self.session.str_of(name));
@@ -5376,7 +5376,7 @@ impl Resolver {
     pub fn add_trait_info(&self,
                           found_traits: &mut ~[def_id],
                           trait_def_id: def_id,
-                          name: ident) {
+                          name: Ident) {
         debug!("(adding trait info) found trait %d:%d for method '%s'",
                trait_def_id.crate,
                trait_def_id.node,
@@ -5493,7 +5493,7 @@ impl Resolver {
         if idents.len() == 0 {
             return ~"???";
         }
-        return self.idents_to_str(idents.move_rev_iter().collect::<~[ast::ident]>());
+        return self.idents_to_str(idents.move_rev_iter().collect::<~[ast::Ident]>());
     }
 
     pub fn dump_module(@mut self, module_: @mut Module) {
diff --git a/src/librustc/middle/trans/_match.rs b/src/librustc/middle/trans/_match.rs
index 9259b323d429b..e42700fea76fd 100644
--- a/src/librustc/middle/trans/_match.rs
+++ b/src/librustc/middle/trans/_match.rs
@@ -222,7 +222,7 @@ use util::ppaux::{Repr, vec_map_to_str};
 use std::hashmap::HashMap;
 use std::vec;
 use syntax::ast;
-use syntax::ast::ident;
+use syntax::ast::Ident;
 use syntax::ast_util::path_to_ident;
 use syntax::ast_util;
 use syntax::codemap::{Span, dummy_sp};
@@ -390,7 +390,7 @@ struct BindingInfo {
     ty: ty::t,
 }
 
-type BindingsMap = HashMap<ident, BindingInfo>;
+type BindingsMap = HashMap<Ident, BindingInfo>;
 
 #[deriving(Clone)]
 struct ArmData<'self> {
@@ -409,7 +409,7 @@ struct ArmData<'self> {
 struct Match<'self> {
     pats: ~[@ast::pat],
     data: ArmData<'self>,
-    bound_ptrs: ~[(ident, ValueRef)]
+    bound_ptrs: ~[(Ident, ValueRef)]
 }
 
 impl<'self> Repr for Match<'self> {
@@ -736,7 +736,7 @@ fn enter_rec_or_struct<'r>(bcx: @mut Block,
                                dm: DefMap,
                                m: &[Match<'r>],
                                col: uint,
-                               fields: &[ast::ident],
+                               fields: &[ast::Ident],
                                val: ValueRef)
                             -> ~[Match<'r>] {
     debug!("enter_rec_or_struct(bcx=%s, m=%s, col=%u, val=%s)",
@@ -1076,8 +1076,8 @@ fn extract_vec_elems(bcx: @mut Block,
 fn collect_record_or_struct_fields(bcx: @mut Block,
                                        m: &[Match],
                                        col: uint)
-                                    -> Option<~[ast::ident]> {
-    let mut fields: ~[ast::ident] = ~[];
+                                    -> Option<~[ast::Ident]> {
+    let mut fields: ~[ast::Ident] = ~[];
     let mut found = false;
     for br in m.iter() {
         match br.pats[col].node {
@@ -1099,7 +1099,7 @@ fn collect_record_or_struct_fields(bcx: @mut Block,
         return None;
     }
 
-    fn extend(idents: &mut ~[ast::ident], field_pats: &[ast::field_pat]) {
+    fn extend(idents: &mut ~[ast::Ident], field_pats: &[ast::field_pat]) {
         for field_pat in field_pats.iter() {
             let field_ident = field_pat.ident;
             if !idents.iter().any(|x| *x == field_ident) {
diff --git a/src/librustc/middle/trans/base.rs b/src/librustc/middle/trans/base.rs
index 7206eb4755410..79440b03d761f 100644
--- a/src/librustc/middle/trans/base.rs
+++ b/src/librustc/middle/trans/base.rs
@@ -76,7 +76,7 @@ use std::vec;
 use std::local_data;
 use extra::time;
 use extra::sort;
-use syntax::ast::ident;
+use syntax::ast::Ident;
 use syntax::ast_map::{path, path_elt_to_str, path_name};
 use syntax::ast_util::{local_def};
 use syntax::attr;
@@ -1203,7 +1203,7 @@ pub fn scope_block(bcx: @mut Block,
 
 pub fn loop_scope_block(bcx: @mut Block,
                         loop_break: @mut Block,
-                        loop_label: Option<ident>,
+                        loop_label: Option<Ident>,
                         n: &str,
                         opt_node_info: Option<NodeInfo>) -> @mut Block {
     return new_block(bcx.fcx, Some(bcx), Some(@mut ScopeInfo {
diff --git a/src/librustc/middle/trans/common.rs b/src/librustc/middle/trans/common.rs
index 6a0541f0046b4..9b608d1266950 100644
--- a/src/librustc/middle/trans/common.rs
+++ b/src/librustc/middle/trans/common.rs
@@ -38,7 +38,7 @@ use std::cast;
 use std::hashmap::{HashMap};
 use std::libc::{c_uint, c_longlong, c_ulonglong, c_char};
 use std::vec;
-use syntax::ast::ident;
+use syntax::ast::Ident;
 use syntax::ast_map::{path, path_elt};
 use syntax::codemap::Span;
 use syntax::parse::token;
@@ -46,7 +46,7 @@ use syntax::{ast, ast_map};
 
 pub use middle::trans::context::CrateContext;
 
-pub fn gensym_name(name: &str) -> ident {
+pub fn gensym_name(name: &str) -> Ident {
     token::str_to_ident(fmt!("%s_%u", name, token::gensym(name)))
 }
 
@@ -460,7 +460,7 @@ pub fn block_cleanups(bcx: @mut Block) -> ~[cleanup] {
 pub struct ScopeInfo {
     parent: Option<@mut ScopeInfo>,
     loop_break: Option<@mut Block>,
-    loop_label: Option<ident>,
+    loop_label: Option<Ident>,
     // A list of functions that must be run at when leaving this
     // block, cleaning up any variables that were introduced in the
     // block.
@@ -562,7 +562,7 @@ impl Block {
     pub fn tcx(&self) -> ty::ctxt { self.fcx.ccx.tcx }
     pub fn sess(&self) -> Session { self.fcx.ccx.sess }
 
-    pub fn ident(&self, ident: ident) -> @str {
+    pub fn ident(&self, ident: Ident) -> @str {
         token::ident_to_str(&ident)
     }
 
diff --git a/src/librustc/middle/trans/context.rs b/src/librustc/middle/trans/context.rs
index 9f99a0c92e534..02659b99afcf7 100644
--- a/src/librustc/middle/trans/context.rs
+++ b/src/librustc/middle/trans/context.rs
@@ -87,7 +87,7 @@ pub struct CrateContext {
      // Cache of external const values
      extern_const_values: HashMap<ast::def_id, ValueRef>,
 
-     impl_method_cache: HashMap<(ast::def_id, ast::ident), ast::def_id>,
+     impl_method_cache: HashMap<(ast::def_id, ast::Ident), ast::def_id>,
 
      module_data: HashMap<~str, ValueRef>,
      lltypes: HashMap<ty::t, Type>,
diff --git a/src/librustc/middle/trans/controlflow.rs b/src/librustc/middle/trans/controlflow.rs
index feacede972545..be4fef3693478 100644
--- a/src/librustc/middle/trans/controlflow.rs
+++ b/src/librustc/middle/trans/controlflow.rs
@@ -27,7 +27,7 @@ use util::ppaux;
 use middle::trans::type_::Type;
 
 use syntax::ast;
-use syntax::ast::ident;
+use syntax::ast::Ident;
 use syntax::ast_map::path_mod;
 use syntax::ast_util;
 use syntax::codemap::Span;
@@ -194,7 +194,7 @@ pub fn trans_while(bcx: @mut Block, cond: @ast::expr, body: &ast::Block) -> @mut
 
 pub fn trans_loop(bcx:@mut Block,
                   body: &ast::Block,
-                  opt_label: Option<ident>)
+                  opt_label: Option<Ident>)
                -> @mut Block {
     let _icx = push_ctxt("trans_loop");
     let next_bcx = sub_block(bcx, "next");
@@ -273,7 +273,7 @@ pub fn trans_log(log_ex: &ast::expr,
 }
 
 pub fn trans_break_cont(bcx: @mut Block,
-                        opt_label: Option<ident>,
+                        opt_label: Option<Ident>,
                         to_end: bool)
                      -> @mut Block {
     let _icx = push_ctxt("trans_break_cont");
@@ -326,11 +326,11 @@ pub fn trans_break_cont(bcx: @mut Block,
     return bcx;
 }
 
-pub fn trans_break(bcx: @mut Block, label_opt: Option<ident>) -> @mut Block {
+pub fn trans_break(bcx: @mut Block, label_opt: Option<Ident>) -> @mut Block {
     return trans_break_cont(bcx, label_opt, true);
 }
 
-pub fn trans_cont(bcx: @mut Block, label_opt: Option<ident>) -> @mut Block {
+pub fn trans_cont(bcx: @mut Block, label_opt: Option<Ident>) -> @mut Block {
     return trans_break_cont(bcx, label_opt, false);
 }
 
diff --git a/src/librustc/middle/trans/debuginfo.rs b/src/librustc/middle/trans/debuginfo.rs
index 71269d5e61e28..b69b9b308ba44 100644
--- a/src/librustc/middle/trans/debuginfo.rs
+++ b/src/librustc/middle/trans/debuginfo.rs
@@ -155,7 +155,7 @@ pub fn create_local_var_metadata(bcx: @mut Block, local: &ast::Local) {
 ///
 /// Adds the created metadata nodes directly to the crate's IR.
 pub fn create_match_binding_metadata(bcx: @mut Block,
-                                     variable_ident: ast::ident,
+                                     variable_ident: ast::Ident,
                                      node_id: ast::NodeId,
                                      variable_type: ty::t,
                                      span: Span) {
@@ -640,7 +640,7 @@ fn compile_unit_metadata(cx: @mut CrateContext) {
 }
 
 fn declare_local(bcx: @mut Block,
-                 variable_ident: ast::ident,
+                 variable_ident: ast::Ident,
                  node_id: ast::NodeId,
                  variable_type: ty::t,
                  span: Span) {
@@ -1539,7 +1539,7 @@ fn populate_scope_map(cx: &mut CrateContext,
 
     struct ScopeStackEntry {
         scope_metadata: DIScope,
-        ident: Option<ast::ident>
+        ident: Option<ast::Ident>
     }
 
     let mut scope_stack = ~[ScopeStackEntry { scope_metadata: fn_metadata, ident: None }];
diff --git a/src/librustc/middle/trans/expr.rs b/src/librustc/middle/trans/expr.rs
index f36b20e053bf1..1aedf1ab62358 100644
--- a/src/librustc/middle/trans/expr.rs
+++ b/src/librustc/middle/trans/expr.rs
@@ -894,7 +894,7 @@ fn trans_lvalue_unadjusted(bcx: @mut Block, expr: @ast::expr) -> DatumBlock {
 
     fn trans_rec_field(bcx: @mut Block,
                        base: @ast::expr,
-                       field: ast::ident) -> DatumBlock {
+                       field: ast::Ident) -> DatumBlock {
         //! Translates `base.field`.
 
         let mut bcx = bcx;
diff --git a/src/librustc/middle/trans/meth.rs b/src/librustc/middle/trans/meth.rs
index fb4dd8a74fb61..fa10b8a8e4493 100644
--- a/src/librustc/middle/trans/meth.rs
+++ b/src/librustc/middle/trans/meth.rs
@@ -47,7 +47,7 @@ see `trans::base::lval_static_fn()` or `trans::base::monomorphic_fn()`.
 */
 pub fn trans_impl(ccx: @mut CrateContext,
                   path: path,
-                  name: ast::ident,
+                  name: ast::Ident,
                   methods: &[@ast::method],
                   generics: &ast::Generics,
                   id: ast::NodeId) {
@@ -294,7 +294,7 @@ pub fn trans_static_method_callee(bcx: @mut Block,
 
 pub fn method_with_name(ccx: &mut CrateContext,
                         impl_id: ast::def_id,
-                        name: ast::ident) -> ast::def_id {
+                        name: ast::Ident) -> ast::def_id {
     let meth_id_opt = ccx.impl_method_cache.find_copy(&(impl_id, name));
     match meth_id_opt {
         Some(m) => return m,
diff --git a/src/librustc/middle/ty.rs b/src/librustc/middle/ty.rs
index b464ce6d624e8..c548b18f72c89 100644
--- a/src/librustc/middle/ty.rs
+++ b/src/librustc/middle/ty.rs
@@ -56,7 +56,7 @@ pub static INITIAL_DISCRIMINANT_VALUE: Disr = 0;
 
 #[deriving(Eq, IterBytes)]
 pub struct field {
-    ident: ast::ident,
+    ident: ast::Ident,
     mt: mt
 }
 
@@ -68,7 +68,7 @@ pub enum MethodContainer {
 
 #[deriving(Clone)]
 pub struct Method {
-    ident: ast::ident,
+    ident: ast::Ident,
     generics: ty::Generics,
     transformed_self_ty: Option<ty::t>,
     fty: BareFnTy,
@@ -82,7 +82,7 @@ pub struct Method {
 }
 
 impl Method {
-    pub fn new(ident: ast::ident,
+    pub fn new(ident: ast::Ident,
                generics: ty::Generics,
                transformed_self_ty: Option<ty::t>,
                fty: BareFnTy,
@@ -122,7 +122,7 @@ impl Method {
 
 pub struct Impl {
     did: def_id,
-    ident: ident,
+    ident: Ident,
     methods: ~[@Method]
 }
 
@@ -156,7 +156,7 @@ pub enum SelfMode {
 }
 
 pub struct field_ty {
-    ident: ident,
+    ident: Ident,
     id: def_id,
     vis: ast::visibility,
 }
@@ -431,7 +431,7 @@ pub struct ClosureTy {
  * - `output` is the return type. */
 #[deriving(Clone, Eq, IterBytes)]
 pub struct FnSig {
-    bound_lifetime_names: OptVec<ast::ident>,
+    bound_lifetime_names: OptVec<ast::Ident>,
     inputs: ~[t],
     output: t
 }
@@ -504,7 +504,7 @@ pub enum bound_region {
     br_anon(uint),
 
     /// Named region parameters for functions (a in &'a T)
-    br_named(ast::ident),
+    br_named(ast::Ident),
 
     /// Fresh bound identifiers created during GLB computations.
     br_fresh(uint),
@@ -684,7 +684,7 @@ pub enum type_err {
     terr_ty_param_size(expected_found<uint>),
     terr_record_size(expected_found<uint>),
     terr_record_mutability,
-    terr_record_fields(expected_found<ident>),
+    terr_record_fields(expected_found<Ident>),
     terr_arg_count,
     terr_regions_does_not_outlive(Region, Region),
     terr_regions_not_same(Region, Region),
@@ -693,7 +693,7 @@ pub enum type_err {
     terr_regions_overly_polymorphic(bound_region, Region),
     terr_vstores_differ(terr_vstore_kind, expected_found<vstore>),
     terr_trait_stores_differ(terr_vstore_kind, expected_found<TraitStore>),
-    terr_in_field(@type_err, ast::ident),
+    terr_in_field(@type_err, ast::Ident),
     terr_sorts(expected_found<t>),
     terr_integer_as_char,
     terr_int_mismatch(expected_found<IntVarValue>),
@@ -848,7 +848,7 @@ impl ToStr for IntVarValue {
 
 #[deriving(Clone)]
 pub struct TypeParameterDef {
-    ident: ast::ident,
+    ident: ast::Ident,
     def_id: ast::def_id,
     bounds: @ParamBounds
 }
@@ -3359,13 +3359,13 @@ pub fn stmt_node_id(s: &ast::stmt) -> ast::NodeId {
     }
 }
 
-pub fn field_idx(id: ast::ident, fields: &[field]) -> Option<uint> {
+pub fn field_idx(id: ast::Ident, fields: &[field]) -> Option<uint> {
     let mut i = 0u;
     for f in fields.iter() { if f.ident == id { return Some(i); } i += 1u; }
     return None;
 }
 
-pub fn field_idx_strict(tcx: ty::ctxt, id: ast::ident, fields: &[field])
+pub fn field_idx_strict(tcx: ty::ctxt, id: ast::Ident, fields: &[field])
                      -> uint {
     let mut i = 0u;
     for f in fields.iter() { if f.ident == id { return i; } i += 1u; }
@@ -3375,7 +3375,7 @@ pub fn field_idx_strict(tcx: ty::ctxt, id: ast::ident, fields: &[field])
         fields.map(|f| tcx.sess.str_of(f.ident))));
 }
 
-pub fn method_idx(id: ast::ident, meths: &[@Method]) -> Option<uint> {
+pub fn method_idx(id: ast::Ident, meths: &[@Method]) -> Option<uint> {
     meths.iter().position(|m| m.ident == id)
 }
 
@@ -3823,9 +3823,9 @@ fn struct_ctor_id(cx: ctxt, struct_did: ast::def_id) -> Option<ast::def_id> {
 #[deriving(Clone)]
 pub struct VariantInfo {
     args: ~[t],
-    arg_names: Option<~[ast::ident]>,
+    arg_names: Option<~[ast::Ident]>,
     ctor_ty: t,
-    name: ast::ident,
+    name: ast::Ident,
     id: ast::def_id,
     disr_val: Disr,
     vis: visibility
diff --git a/src/librustc/middle/typeck/astconv.rs b/src/librustc/middle/typeck/astconv.rs
index 419bc999e033a..8ba6234e6095a 100644
--- a/src/librustc/middle/typeck/astconv.rs
+++ b/src/librustc/middle/typeck/astconv.rs
@@ -555,7 +555,7 @@ pub fn ty_of_arg<AC:AstConv,
 
 pub fn bound_lifetimes<AC:AstConv>(
     this: &AC,
-    ast_lifetimes: &OptVec<ast::Lifetime>) -> OptVec<ast::ident>
+    ast_lifetimes: &OptVec<ast::Lifetime>) -> OptVec<ast::Ident>
 {
     /*!
      *
diff --git a/src/librustc/middle/typeck/check/method.rs b/src/librustc/middle/typeck/check/method.rs
index c20ccafe82c4e..c45f1c6ac4a10 100644
--- a/src/librustc/middle/typeck/check/method.rs
+++ b/src/librustc/middle/typeck/check/method.rs
@@ -126,7 +126,7 @@ pub fn lookup(
         self_expr: @ast::expr,              // The expression `a`.
         callee_id: NodeId,                  /* Where to store `a.b`'s type,
                                              * also the scope of the call */
-        m_name: ast::ident,                 // The ident `b`.
+        m_name: ast::Ident,                 // The ident `b`.
         self_ty: ty::t,                     // The type of `a`.
         supplied_tps: &[ty::t],             // The list of types X, Y, ... .
         deref_args: check::DerefArgs,       // Whether we autopointer first.
@@ -173,7 +173,7 @@ pub struct LookupContext<'self> {
     expr: @ast::expr,
     self_expr: @ast::expr,
     callee_id: NodeId,
-    m_name: ast::ident,
+    m_name: ast::Ident,
     supplied_tps: &'self [ty::t],
     impl_dups: @mut HashSet<def_id>,
     inherent_candidates: @mut ~[Candidate],
diff --git a/src/librustc/middle/typeck/check/mod.rs b/src/librustc/middle/typeck/check/mod.rs
index 0d4185470b7dc..8d5f257ebd6bf 100644
--- a/src/librustc/middle/typeck/check/mod.rs
+++ b/src/librustc/middle/typeck/check/mod.rs
@@ -557,7 +557,7 @@ pub fn check_method(ccx: @mut CrateCtxt,
 }
 
 pub fn check_no_duplicate_fields(tcx: ty::ctxt,
-                                 fields: ~[(ast::ident, Span)]) {
+                                 fields: ~[(ast::Ident, Span)]) {
     let mut field_names = HashMap::new();
 
     for p in fields.iter() {
@@ -714,7 +714,7 @@ impl RegionScope for FnCtxt {
     }
     fn named_region(&self,
                     span: Span,
-                    id: ast::ident) -> Result<ty::Region, RegionError> {
+                    id: ast::Ident) -> Result<ty::Region, RegionError> {
         self.search_in_scope_regions(span, ty::br_named(id))
     }
 }
@@ -1116,7 +1116,7 @@ pub fn impl_self_ty(vcx: &VtableContext,
 pub fn lookup_field_ty(tcx: ty::ctxt,
                        class_id: ast::def_id,
                        items: &[ty::field_ty],
-                       fieldname: ast::ident,
+                       fieldname: ast::Ident,
                        substs: &ty::substs) -> Option<ty::t> {
 
     let o_field = items.iter().find(|f| f.ident == fieldname);
@@ -1536,7 +1536,7 @@ pub fn check_expr_with_unifier(fcx: @mut FnCtxt,
                          callee_id: ast::NodeId,
                          expr: @ast::expr,
                          rcvr: @ast::expr,
-                         method_name: ast::ident,
+                         method_name: ast::Ident,
                          args: &[@ast::expr],
                          tps: &[ast::Ty],
                          sugar: ast::CallSugar) {
@@ -1636,7 +1636,7 @@ pub fn check_expr_with_unifier(fcx: @mut FnCtxt,
                         op_ex: @ast::expr,
                         self_ex: @ast::expr,
                         self_t: ty::t,
-                        opname: ast::ident,
+                        opname: ast::Ident,
                         args: ~[@ast::expr],
                         deref_args: DerefArgs,
                         autoderef_receiver: AutoderefReceiverFlag,
@@ -1936,7 +1936,7 @@ pub fn check_expr_with_unifier(fcx: @mut FnCtxt,
     fn check_field(fcx: @mut FnCtxt,
                    expr: @ast::expr,
                    base: @ast::expr,
-                   field: ast::ident,
+                   field: ast::Ident,
                    tys: &[ast::Ty]) {
         let tcx = fcx.ccx.tcx;
         let bot = check_expr(fcx, base);
diff --git a/src/librustc/middle/typeck/collect.rs b/src/librustc/middle/typeck/collect.rs
index 4707af5ca6c8c..f882a25ba8086 100644
--- a/src/librustc/middle/typeck/collect.rs
+++ b/src/librustc/middle/typeck/collect.rs
@@ -368,7 +368,7 @@ pub fn ensure_trait_methods(ccx: &CrateCtxt,
                                  trait_rp: Option<ty::region_variance>,
                                  trait_generics: &ast::Generics,
                                  m_id: &ast::NodeId,
-                                 m_ident: &ast::ident,
+                                 m_ident: &ast::Ident,
                                  m_explicit_self: &ast::explicit_self,
                                  m_generics: &ast::Generics,
                                  m_purity: &ast::purity,
diff --git a/src/librustc/middle/typeck/rscope.rs b/src/librustc/middle/typeck/rscope.rs
index b1342de067cd4..d3dc3d1fb1c9a 100644
--- a/src/librustc/middle/typeck/rscope.rs
+++ b/src/librustc/middle/typeck/rscope.rs
@@ -27,7 +27,7 @@ pub struct RegionError {
 pub trait RegionScope {
     fn anon_region(&self, span: Span) -> Result<ty::Region, RegionError>;
     fn self_region(&self, span: Span) -> Result<ty::Region, RegionError>;
-    fn named_region(&self, span: Span, id: ast::ident)
+    fn named_region(&self, span: Span, id: ast::Ident)
                       -> Result<ty::Region, RegionError>;
 }
 
@@ -43,7 +43,7 @@ impl RegionScope for EmptyRscope {
     fn self_region(&self, _span: Span) -> Result<ty::Region, RegionError> {
         self.anon_region(_span)
     }
-    fn named_region(&self, _span: Span, _id: ast::ident)
+    fn named_region(&self, _span: Span, _id: ast::Ident)
         -> Result<ty::Region, RegionError>
     {
         self.anon_region(_span)
@@ -51,14 +51,14 @@ impl RegionScope for EmptyRscope {
 }
 
 #[deriving(Clone)]
-pub struct RegionParamNames(OptVec<ast::ident>);
+pub struct RegionParamNames(OptVec<ast::Ident>);
 
 impl RegionParamNames {
     fn has_self(&self) -> bool {
         self.has_ident(special_idents::self_)
     }
 
-    fn has_ident(&self, ident: ast::ident) -> bool {
+    fn has_ident(&self, ident: ast::Ident) -> bool {
         for region_param_name in self.iter() {
             if *region_param_name == ident {
                 return true;
@@ -197,7 +197,7 @@ impl RegionScope for MethodRscope {
         }
         result::Ok(ty::re_bound(ty::br_self))
     }
-    fn named_region(&self, span: Span, id: ast::ident)
+    fn named_region(&self, span: Span, id: ast::Ident)
                       -> Result<ty::Region, RegionError> {
         if !self.region_param_names.has_ident(id) {
             return RegionParamNames::undeclared_name(None);
@@ -249,7 +249,7 @@ impl RegionScope for TypeRscope {
         }
         result::Ok(ty::re_bound(ty::br_self))
     }
-    fn named_region(&self, span: Span, id: ast::ident)
+    fn named_region(&self, span: Span, id: ast::Ident)
                       -> Result<ty::Region, RegionError> {
         do EmptyRscope.named_region(span, id).chain_err |_e| {
             result::Err(RegionError {
@@ -308,7 +308,7 @@ impl RegionScope for BindingRscope {
     }
     fn named_region(&self,
                     span: Span,
-                    id: ast::ident) -> Result<ty::Region, RegionError>
+                    id: ast::Ident) -> Result<ty::Region, RegionError>
     {
         do self.base.named_region(span, id).chain_err |_e| {
             let result = ty::re_bound(ty::br_named(id));
diff --git a/src/librustc/util/ppaux.rs b/src/librustc/util/ppaux.rs
index de839239e7282..fe33205171430 100644
--- a/src/librustc/util/ppaux.rs
+++ b/src/librustc/util/ppaux.rs
@@ -305,7 +305,7 @@ pub fn ty_to_str(cx: ctxt, typ: t) -> ~str {
     fn bare_fn_to_str(cx: ctxt,
                       purity: ast::purity,
                       abis: AbiSet,
-                      ident: Option<ast::ident>,
+                      ident: Option<ast::Ident>,
                       sig: &ty::FnSig)
                       -> ~str {
         let mut s = ~"extern ";
@@ -693,7 +693,7 @@ impl Repr for ty::Method {
     }
 }
 
-impl Repr for ast::ident {
+impl Repr for ast::Ident {
     fn repr(&self, _tcx: ctxt) -> ~str {
         token::ident_to_str(self).to_owned()
     }
diff --git a/src/librustdoc/extract.rs b/src/librustdoc/extract.rs
index 55552924d4461..88a63a9cb59da 100644
--- a/src/librustdoc/extract.rs
+++ b/src/librustdoc/extract.rs
@@ -22,7 +22,7 @@ use syntax::parse::token;
 // Hack; rather than thread an interner through everywhere, rely on
 // thread-local data
 // Hack-Becomes-Feature: using thread-local-state everywhere...
-pub fn to_str(id: ast::ident) -> ~str {
+pub fn to_str(id: ast::Ident) -> ~str {
     /* bad */ ident_to_str(&id).to_owned()
 }
 
diff --git a/src/librustpkg/util.rs b/src/librustpkg/util.rs
index 98c499900a20c..1b06f78abb911 100644
--- a/src/librustpkg/util.rs
+++ b/src/librustpkg/util.rs
@@ -54,14 +54,14 @@ pub fn is_cmd(cmd: &str) -> bool {
 struct ListenerFn {
     cmds: ~[~str],
     span: codemap::Span,
-    path: ~[ast::ident]
+    path: ~[ast::Ident]
 }
 
 struct ReadyCtx {
     sess: session::Session,
     crate: @ast::Crate,
     ext_cx: @ExtCtxt,
-    path: ~[ast::ident],
+    path: ~[ast::Ident],
     fns: ~[ListenerFn]
 }
 
diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
index a7fad7def186f..d7a05667a9883 100644
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -25,10 +25,12 @@ use extra::serialize::{Encodable, Decodable, Encoder, Decoder};
 // macro expansion per Flatt et al., "Macros
 // That Work Together"
 #[deriving(Clone, Eq, IterBytes, ToStr)]
-pub struct ident { name: Name, ctxt: SyntaxContext }
+pub struct Ident { name: Name, ctxt: SyntaxContext }
 
-/// Construct an identifier with the given name and an empty context:
-pub fn new_ident(name: Name) -> ident { ident {name: name, ctxt: empty_ctxt}}
+impl Ident {
+    /// Construct an identifier with the given name and an empty context:
+    pub fn new(name: Name) -> Ident { Ident {name: name, ctxt: empty_ctxt}}
+}
 
 /// A SyntaxContext represents a chain of macro-expandings
 /// and renamings. Each macro expansion corresponds to
@@ -48,7 +50,7 @@ pub type SyntaxContext = uint;
 pub struct SCTable {
     table : ~[SyntaxContext_],
     mark_memo : HashMap<(SyntaxContext,Mrk),SyntaxContext>,
-    rename_memo : HashMap<(SyntaxContext,ident,Name),SyntaxContext>
+    rename_memo : HashMap<(SyntaxContext,Ident,Name),SyntaxContext>
 }
 // NB: these must be placed in any SCTable...
 pub static empty_ctxt : uint = 0;
@@ -66,7 +68,7 @@ pub enum SyntaxContext_ {
     // "to" slot must have the same name and context
     // in the "from" slot. In essence, they're all
     // pointers to a single "rename" event node.
-    Rename (ident,Name,SyntaxContext),
+    Rename (Ident,Name,SyntaxContext),
     IllegalCtxt()
 }
 
@@ -76,27 +78,27 @@ pub type Name = uint;
 /// A mark represents a unique id associated with a macro expansion
 pub type Mrk = uint;
 
-impl<S:Encoder> Encodable<S> for ident {
+impl<S:Encoder> Encodable<S> for Ident {
     fn encode(&self, s: &mut S) {
         s.emit_str(interner_get(self.name));
     }
 }
 
 #[deriving(IterBytes)]
-impl<D:Decoder> Decodable<D> for ident {
-    fn decode(d: &mut D) -> ident {
+impl<D:Decoder> Decodable<D> for Ident {
+    fn decode(d: &mut D) -> Ident {
         str_to_ident(d.read_str())
     }
 }
 
 /// Function name (not all functions have names)
-pub type fn_ident = Option<ident>;
+pub type fn_ident = Option<Ident>;
 
 #[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
 pub struct Lifetime {
     id: NodeId,
     span: Span,
-    ident: ident
+    ident: Ident
 }
 
 // a "Path" is essentially Rust's notion of a name;
@@ -118,7 +120,7 @@ pub struct Path {
 #[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
 pub struct PathSegment {
     /// The identifier portion of this path segment.
-    identifier: ident,
+    identifier: Ident,
     /// The lifetime parameter for this path segment. Currently only one
     /// lifetime parameter is allowed.
     lifetime: Option<Lifetime>,
@@ -151,7 +153,7 @@ pub enum TyParamBound {
 
 #[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
 pub struct TyParam {
-    ident: ident,
+    ident: Ident,
     id: NodeId,
     bounds: OptVec<TyParamBound>
 }
@@ -275,7 +277,7 @@ pub struct pat {
 
 #[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
 pub struct field_pat {
-    ident: ident,
+    ident: Ident,
     pat: @pat,
 }
 
@@ -430,7 +432,7 @@ pub struct arm {
 
 #[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
 pub struct Field {
-    ident: ident,
+    ident: Ident,
     expr: @expr,
     span: Span,
 }
@@ -473,7 +475,7 @@ pub enum expr_ {
     expr_vstore(@expr, expr_vstore),
     expr_vec(~[@expr], mutability),
     expr_call(@expr, ~[@expr], CallSugar),
-    expr_method_call(NodeId, @expr, ident, ~[Ty], ~[@expr], CallSugar),
+    expr_method_call(NodeId, @expr, Ident, ~[Ty], ~[@expr], CallSugar),
     expr_tup(~[@expr]),
     expr_binary(NodeId, binop, @expr, @expr),
     expr_unary(NodeId, unop, @expr),
@@ -485,7 +487,7 @@ pub enum expr_ {
     /* Conditionless loop (can be exited with break, cont, or ret)
        Same semantics as while(true) { body }, but typestate knows that the
        (implicit) condition is always true. */
-    expr_loop(Block, Option<ident>),
+    expr_loop(Block, Option<Ident>),
     expr_match(@expr, ~[arm]),
     expr_fn_block(fn_decl, Block),
     expr_do_body(@expr),
@@ -493,15 +495,15 @@ pub enum expr_ {
 
     expr_assign(@expr, @expr),
     expr_assign_op(NodeId, binop, @expr, @expr),
-    expr_field(@expr, ident, ~[Ty]),
+    expr_field(@expr, Ident, ~[Ty]),
     expr_index(NodeId, @expr, @expr),
     expr_path(Path),
 
     /// The special identifier `self`.
     expr_self,
     expr_addr_of(mutability, @expr),
-    expr_break(Option<ident>),
-    expr_again(Option<ident>),
+    expr_break(Option<Ident>),
+    expr_again(Option<Ident>),
     expr_ret(Option<@expr>),
     expr_log(@expr, @expr),
 
@@ -550,7 +552,7 @@ pub enum token_tree {
     tt_seq(Span, @mut ~[token_tree], Option<::parse::token::Token>, bool),
 
     // a syntactic variable that will be filled in by macro expansion.
-    tt_nonterminal(Span, ident)
+    tt_nonterminal(Span, Ident)
 }
 
 //
@@ -615,7 +617,7 @@ pub enum matcher_ {
     // lo, hi position-in-match-array used:
     match_seq(~[matcher], Option<::parse::token::Token>, bool, uint, uint),
     // parse a Rust NT: name to bind, name of NT, position in match array:
-    match_nonterminal(ident, ident, uint)
+    match_nonterminal(Ident, Ident, uint)
 }
 
 pub type mac = Spanned<mac_>;
@@ -649,14 +651,14 @@ pub struct mt {
 
 #[deriving(Eq, Encodable, Decodable,IterBytes)]
 pub struct TypeField {
-    ident: ident,
+    ident: Ident,
     mt: mt,
     span: Span,
 }
 
 #[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
 pub struct TypeMethod {
-    ident: ident,
+    ident: Ident,
     attrs: ~[Attribute],
     purity: purity,
     decl: fn_decl,
@@ -868,7 +870,7 @@ pub type explicit_self = Spanned<explicit_self_>;
 
 #[deriving(Eq, Encodable, Decodable,IterBytes)]
 pub struct method {
-    ident: ident,
+    ident: Ident,
     attrs: ~[Attribute],
     generics: Generics,
     explicit_self: explicit_self,
@@ -921,7 +923,7 @@ pub struct enum_def {
 
 #[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
 pub struct variant_ {
-    name: ident,
+    name: Ident,
     attrs: ~[Attribute],
     kind: variant_kind,
     id: NodeId,
@@ -933,7 +935,7 @@ pub type variant = Spanned<variant_>;
 
 #[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
 pub struct path_list_ident_ {
-    name: ident,
+    name: Ident,
     id: NodeId,
 }
 
@@ -949,7 +951,7 @@ pub enum view_path_ {
     // or just
     //
     // foo::bar::baz  (with 'baz =' implicitly on the left)
-    view_path_simple(ident, Path, NodeId),
+    view_path_simple(Ident, Path, NodeId),
 
     // foo::bar::*
     view_path_glob(Path, NodeId),
@@ -972,7 +974,7 @@ pub enum view_item_ {
     // optional @str: if present, this is a location (containing
     // arbitrary characters) from which to fetch the crate sources
     // For example, extern mod whatever = "github.com/mozilla/rust"
-    view_item_extern_mod(ident, Option<@str>, ~[@MetaItem], NodeId),
+    view_item_extern_mod(Ident, Option<@str>, ~[@MetaItem], NodeId),
     view_item_use(~[@view_path]),
 }
 
@@ -1037,7 +1039,7 @@ pub type struct_field = Spanned<struct_field_>;
 
 #[deriving(Eq, Encodable, Decodable,IterBytes)]
 pub enum struct_field_kind {
-    named_field(ident, visibility),
+    named_field(Ident, visibility),
     unnamed_field   // element of a tuple-like struct
 }
 
@@ -1055,7 +1057,7 @@ pub struct struct_def {
  */
 #[deriving(Clone, Eq, Encodable, Decodable, IterBytes)]
 pub struct item {
-    ident: ident,
+    ident: Ident,
     attrs: ~[Attribute],
     id: NodeId,
     node: item_,
@@ -1083,7 +1085,7 @@ pub enum item_ {
 
 #[deriving(Eq, Encodable, Decodable,IterBytes)]
 pub struct foreign_item {
-    ident: ident,
+    ident: Ident,
     attrs: ~[Attribute],
     node: foreign_item_,
     id: NodeId,
diff --git a/src/libsyntax/ast_map.rs b/src/libsyntax/ast_map.rs
index c900bf2c15d0c..6e022e9804b41 100644
--- a/src/libsyntax/ast_map.rs
+++ b/src/libsyntax/ast_map.rs
@@ -27,8 +27,8 @@ use std::vec;
 
 #[deriving(Clone, Eq)]
 pub enum path_elt {
-    path_mod(ident),
-    path_name(ident)
+    path_mod(Ident),
+    path_name(Ident)
 }
 
 pub type path = ~[path_elt];
@@ -44,7 +44,7 @@ pub fn path_to_str_with_sep(p: &[path_elt], sep: &str, itr: @ident_interner)
     strs.connect(sep)
 }
 
-pub fn path_ident_to_str(p: &path, i: ident, itr: @ident_interner) -> ~str {
+pub fn path_ident_to_str(p: &path, i: Ident, itr: @ident_interner) -> ~str {
     if p.is_empty() {
         itr.get(i.name).to_owned()
     } else {
@@ -74,7 +74,7 @@ pub enum ast_node {
     node_expr(@expr),
     node_stmt(@stmt),
     node_arg,
-    node_local(ident),
+    node_local(Ident),
     node_block(Block),
     node_struct_ctor(@struct_def, @item, @path),
     node_callee_scope(@expr)
@@ -89,7 +89,7 @@ pub struct Ctx {
 }
 
 impl Ctx {
-    fn extend(&self, elt: ident) -> @path {
+    fn extend(&self, elt: Ident) -> @path {
         @vec::append(self.path.clone(), [path_name(elt)])
     }
 
@@ -110,7 +110,7 @@ impl Ctx {
     fn map_struct_def(&mut self,
                       struct_def: @ast::struct_def,
                       parent_node: ast_node,
-                      ident: ast::ident) {
+                      ident: ast::Ident) {
         let p = self.extend(ident);
 
         // If this is a tuple-like struct, register the constructor.
@@ -356,7 +356,7 @@ impl Visitor<()> for Ctx {
 
     fn visit_struct_def(&mut self,
                         struct_def: @struct_def,
-                        ident: ident,
+                        ident: Ident,
                         generics: &Generics,
                         node_id: NodeId,
                         _: ()) {
diff --git a/src/libsyntax/ast_util.rs b/src/libsyntax/ast_util.rs
index 62c2e9af938fd..810ce9940f2e1 100644
--- a/src/libsyntax/ast_util.rs
+++ b/src/libsyntax/ast_util.rs
@@ -23,12 +23,12 @@ use std::local_data;
 use std::num;
 use std::option;
 
-pub fn path_name_i(idents: &[ident]) -> ~str {
+pub fn path_name_i(idents: &[Ident]) -> ~str {
     // FIXME: Bad copies (#2543 -- same for everything else that says "bad")
     idents.map(|i| token::interner_get(i.name)).connect("::")
 }
 
-pub fn path_to_ident(path: &Path) -> ident {
+pub fn path_to_ident(path: &Path) -> Ident {
     path.segments.last().identifier
 }
 
@@ -217,7 +217,7 @@ pub fn default_block(
     }
 }
 
-pub fn ident_to_path(s: Span, identifier: ident) -> Path {
+pub fn ident_to_path(s: Span, identifier: Ident) -> Path {
     ast::Path {
         span: s,
         global: false,
@@ -231,7 +231,7 @@ pub fn ident_to_path(s: Span, identifier: ident) -> Path {
     }
 }
 
-pub fn ident_to_pat(id: NodeId, s: Span, i: ident) -> @pat {
+pub fn ident_to_pat(id: NodeId, s: Span, i: Ident) -> @pat {
     @ast::pat { id: id,
                 node: pat_ident(bind_infer, ident_to_path(s, i), None),
                 span: s }
@@ -302,13 +302,13 @@ pub fn struct_field_visibility(field: ast::struct_field) -> visibility {
 }
 
 pub trait inlined_item_utils {
-    fn ident(&self) -> ident;
+    fn ident(&self) -> Ident;
     fn id(&self) -> ast::NodeId;
     fn accept<E: Clone, V:Visitor<E>>(&self, e: E, v: &mut V);
 }
 
 impl inlined_item_utils for inlined_item {
-    fn ident(&self) -> ident {
+    fn ident(&self) -> Ident {
         match *self {
             ii_item(i) => i.ident,
             ii_foreign(i) => i.ident,
@@ -608,7 +608,7 @@ impl Visitor<()> for IdVisitor {
     // XXX: Default
     fn visit_struct_def(&mut self,
                         struct_definition: @struct_def,
-                        identifier: ident,
+                        identifier: Ident,
                         generics: &Generics,
                         node_id: NodeId,
                         env: ()) {
@@ -749,7 +749,7 @@ impl SimpleVisitor for EachViewItemData {
     }
     fn visit_struct_def(&mut self,
                         _: @struct_def,
-                        _: ident,
+                        _: Ident,
                         _: &Generics,
                         _: NodeId) {
         // XXX: Default method.
@@ -827,7 +827,7 @@ pub fn pat_is_ident(pat: @ast::pat) -> bool {
 // HYGIENE FUNCTIONS
 
 /// Construct an identifier with the given name and an empty context:
-pub fn new_ident(name: Name) -> ident { ident {name: name, ctxt: 0}}
+pub fn new_ident(name: Name) -> Ident { Ident {name: name, ctxt: 0}}
 
 /// Extend a syntax context with a given mark
 pub fn new_mark(m:Mrk, tail:SyntaxContext) -> SyntaxContext {
@@ -859,13 +859,13 @@ pub fn new_mark_internal(m:Mrk, tail:SyntaxContext,table:&mut SCTable)
 }
 
 /// Extend a syntax context with a given rename
-pub fn new_rename(id:ident, to:Name, tail:SyntaxContext) -> SyntaxContext {
+pub fn new_rename(id:Ident, to:Name, tail:SyntaxContext) -> SyntaxContext {
     new_rename_internal(id, to, tail, get_sctable())
 }
 
 // Extend a syntax context with a given rename and sctable
 // FIXME #4536 : currently pub to allow testing
-pub fn new_rename_internal(id:ident, to:Name, tail:SyntaxContext, table: &mut SCTable)
+pub fn new_rename_internal(id:Ident, to:Name, tail:SyntaxContext, table: &mut SCTable)
     -> SyntaxContext {
     let key = (tail,id,to);
     // FIXME #5074
@@ -916,22 +916,22 @@ fn idx_push<T>(vec: &mut ~[T], val: T) -> uint {
 }
 
 /// Resolve a syntax object to a name, per MTWT.
-pub fn resolve(id : ident) -> Name {
+pub fn resolve(id : Ident) -> Name {
     resolve_internal(id, get_sctable())
 }
 
 // Resolve a syntax object to a name, per MTWT.
 // FIXME #4536 : currently pub to allow testing
-pub fn resolve_internal(id : ident, table : &mut SCTable) -> Name {
+pub fn resolve_internal(id : Ident, table : &mut SCTable) -> Name {
     match table.table[id.ctxt] {
         EmptyCtxt => id.name,
         // ignore marks here:
-        Mark(_,subctxt) => resolve_internal(ident{name:id.name, ctxt: subctxt},table),
+        Mark(_,subctxt) => resolve_internal(Ident{name:id.name, ctxt: subctxt},table),
         // do the rename if necessary:
-        Rename(ident{name,ctxt},toname,subctxt) => {
+        Rename(Ident{name,ctxt},toname,subctxt) => {
             // this could be cached or computed eagerly:
-            let resolvedfrom = resolve_internal(ident{name:name,ctxt:ctxt},table);
-            let resolvedthis = resolve_internal(ident{name:id.name,ctxt:subctxt},table);
+            let resolvedfrom = resolve_internal(Ident{name:name,ctxt:ctxt},table);
+            let resolvedthis = resolve_internal(Ident{name:id.name,ctxt:subctxt},table);
             if ((resolvedthis == resolvedfrom)
                 && (marksof(ctxt,resolvedthis,table)
                     == marksof(subctxt,resolvedthis,table))) {
@@ -1014,12 +1014,12 @@ mod test {
 
     // convert a list of uints to an @[ident]
     // (ignores the interner completely)
-    fn uints_to_idents (uints: &~[uint]) -> @~[ident] {
-        @uints.map(|u| ident {name:*u, ctxt: empty_ctxt})
+    fn uints_to_idents (uints: &~[uint]) -> @~[Ident] {
+        @uints.map(|u| Ident {name:*u, ctxt: empty_ctxt})
     }
 
-    fn id (u : uint, s: SyntaxContext) -> ident {
-        ident{name:u, ctxt: s}
+    fn id (u : uint, s: SyntaxContext) -> Ident {
+        Ident{name:u, ctxt: s}
     }
 
     // because of the SCTable, I now need a tidy way of
@@ -1027,7 +1027,7 @@ mod test {
     #[deriving(Clone, Eq)]
     enum TestSC {
         M(Mrk),
-        R(ident,Name)
+        R(Ident,Name)
     }
 
     // unfold a vector of TestSC values into a SCTable,
diff --git a/src/libsyntax/ext/base.rs b/src/libsyntax/ext/base.rs
index 83a19bb4634e2..913b68da0cb47 100644
--- a/src/libsyntax/ext/base.rs
+++ b/src/libsyntax/ext/base.rs
@@ -57,7 +57,7 @@ pub struct SyntaxExpanderTTItem {
 
 pub type SyntaxExpanderTTItemFun = @fn(@ExtCtxt,
                                        Span,
-                                       ast::ident,
+                                       ast::Ident,
                                        ~[ast::token_tree])
                                     -> MacResult;
 
@@ -114,7 +114,7 @@ pub struct BlockInfo {
 }
 
 // a list of ident->name renamings
-type RenameList = ~[(ast::ident,Name)];
+type RenameList = ~[(ast::Ident,Name)];
 
 // The base map of methods for expanding syntax extension
 // AST nodes into full ASTs
@@ -228,7 +228,7 @@ pub struct ExtCtxt {
     // and there are bugs in the code for object
     // types that make this hard to get right at the
     // moment. - nmatsakis
-    mod_path: @mut ~[ast::ident],
+    mod_path: @mut ~[ast::Ident],
     trace_mac: @mut bool
 }
 
@@ -255,9 +255,9 @@ impl ExtCtxt {
     }
     pub fn print_backtrace(&self) { }
     pub fn backtrace(&self) -> Option<@ExpnInfo> { *self.backtrace }
-    pub fn mod_push(&self, i: ast::ident) { self.mod_path.push(i); }
+    pub fn mod_push(&self, i: ast::Ident) { self.mod_path.push(i); }
     pub fn mod_pop(&self) { self.mod_path.pop(); }
-    pub fn mod_path(&self) -> ~[ast::ident] { (*self.mod_path).clone() }
+    pub fn mod_path(&self) -> ~[ast::Ident] { (*self.mod_path).clone() }
     pub fn bt_push(&self, ei: codemap::ExpnInfo) {
         match ei {
             ExpnInfo {call_site: cs, callee: ref callee} => {
@@ -311,10 +311,10 @@ impl ExtCtxt {
     pub fn set_trace_macros(&self, x: bool) {
         *self.trace_mac = x
     }
-    pub fn str_of(&self, id: ast::ident) -> @str {
+    pub fn str_of(&self, id: ast::Ident) -> @str {
         ident_to_str(&id)
     }
-    pub fn ident_of(&self, st: &str) -> ast::ident {
+    pub fn ident_of(&self, st: &str) -> ast::Ident {
         str_to_ident(st)
     }
 }
diff --git a/src/libsyntax/ext/build.rs b/src/libsyntax/ext/build.rs
index 194b4ab83f92e..55f7a35e1df52 100644
--- a/src/libsyntax/ext/build.rs
+++ b/src/libsyntax/ext/build.rs
@@ -9,7 +9,7 @@
 // except according to those terms.
 
 use abi::AbiSet;
-use ast::ident;
+use ast::Ident;
 use ast;
 use ast_util;
 use codemap::{Span, respan, dummy_sp};
@@ -20,7 +20,7 @@ use opt_vec;
 use opt_vec::OptVec;
 
 pub struct Field {
-    ident: ast::ident,
+    ident: ast::Ident,
     ex: @ast::expr
 }
 
@@ -32,12 +32,12 @@ mod syntax {
 
 pub trait AstBuilder {
     // paths
-    fn path(&self, span: Span, strs: ~[ast::ident]) -> ast::Path;
-    fn path_ident(&self, span: Span, id: ast::ident) -> ast::Path;
-    fn path_global(&self, span: Span, strs: ~[ast::ident]) -> ast::Path;
+    fn path(&self, span: Span, strs: ~[ast::Ident]) -> ast::Path;
+    fn path_ident(&self, span: Span, id: ast::Ident) -> ast::Path;
+    fn path_global(&self, span: Span, strs: ~[ast::Ident]) -> ast::Path;
     fn path_all(&self, sp: Span,
                 global: bool,
-                idents: ~[ast::ident],
+                idents: ~[ast::Ident],
                 rp: Option<ast::Lifetime>,
                 types: ~[ast::Ty])
         -> ast::Path;
@@ -47,7 +47,7 @@ pub trait AstBuilder {
 
     fn ty(&self, span: Span, ty: ast::ty_) -> ast::Ty;
     fn ty_path(&self, ast::Path, Option<OptVec<ast::TyParamBound>>) -> ast::Ty;
-    fn ty_ident(&self, span: Span, idents: ast::ident) -> ast::Ty;
+    fn ty_ident(&self, span: Span, idents: ast::Ident) -> ast::Ty;
 
     fn ty_rptr(&self, span: Span,
                ty: ast::Ty,
@@ -62,22 +62,22 @@ pub trait AstBuilder {
 
     fn ty_vars(&self, ty_params: &OptVec<ast::TyParam>) -> ~[ast::Ty];
     fn ty_vars_global(&self, ty_params: &OptVec<ast::TyParam>) -> ~[ast::Ty];
-    fn ty_field_imm(&self, span: Span, name: ident, ty: ast::Ty) -> ast::TypeField;
+    fn ty_field_imm(&self, span: Span, name: Ident, ty: ast::Ty) -> ast::TypeField;
     fn strip_bounds(&self, bounds: &Generics) -> Generics;
 
-    fn typaram(&self, id: ast::ident, bounds: OptVec<ast::TyParamBound>) -> ast::TyParam;
+    fn typaram(&self, id: ast::Ident, bounds: OptVec<ast::TyParamBound>) -> ast::TyParam;
 
     fn trait_ref(&self, path: ast::Path) -> ast::trait_ref;
     fn typarambound(&self, path: ast::Path) -> ast::TyParamBound;
-    fn lifetime(&self, span: Span, ident: ast::ident) -> ast::Lifetime;
+    fn lifetime(&self, span: Span, ident: ast::Ident) -> ast::Lifetime;
 
     // statements
     fn stmt_expr(&self, expr: @ast::expr) -> @ast::stmt;
-    fn stmt_let(&self, sp: Span, mutbl: bool, ident: ast::ident, ex: @ast::expr) -> @ast::stmt;
+    fn stmt_let(&self, sp: Span, mutbl: bool, ident: ast::Ident, ex: @ast::expr) -> @ast::stmt;
     fn stmt_let_typed(&self,
                       sp: Span,
                       mutbl: bool,
-                      ident: ast::ident,
+                      ident: ast::Ident,
                       typ: ast::Ty,
                       ex: @ast::expr)
                       -> @ast::stmt;
@@ -93,7 +93,7 @@ pub trait AstBuilder {
     // expressions
     fn expr(&self, span: Span, node: ast::expr_) -> @ast::expr;
     fn expr_path(&self, path: ast::Path) -> @ast::expr;
-    fn expr_ident(&self, span: Span, id: ast::ident) -> @ast::expr;
+    fn expr_ident(&self, span: Span, id: ast::Ident) -> @ast::expr;
 
     fn expr_self(&self, span: Span) -> @ast::expr;
     fn expr_binary(&self, sp: Span, op: ast::binop,
@@ -104,19 +104,19 @@ pub trait AstBuilder {
     fn expr_managed(&self, sp: Span, e: @ast::expr) -> @ast::expr;
     fn expr_addr_of(&self, sp: Span, e: @ast::expr) -> @ast::expr;
     fn expr_mut_addr_of(&self, sp: Span, e: @ast::expr) -> @ast::expr;
-    fn expr_field_access(&self, span: Span, expr: @ast::expr, ident: ast::ident) -> @ast::expr;
+    fn expr_field_access(&self, span: Span, expr: @ast::expr, ident: ast::Ident) -> @ast::expr;
     fn expr_call(&self, span: Span, expr: @ast::expr, args: ~[@ast::expr]) -> @ast::expr;
-    fn expr_call_ident(&self, span: Span, id: ast::ident, args: ~[@ast::expr]) -> @ast::expr;
-    fn expr_call_global(&self, sp: Span, fn_path: ~[ast::ident],
+    fn expr_call_ident(&self, span: Span, id: ast::Ident, args: ~[@ast::expr]) -> @ast::expr;
+    fn expr_call_global(&self, sp: Span, fn_path: ~[ast::Ident],
                         args: ~[@ast::expr]) -> @ast::expr;
     fn expr_method_call(&self, span: Span,
-                        expr: @ast::expr, ident: ast::ident,
+                        expr: @ast::expr, ident: ast::Ident,
                         args: ~[@ast::expr]) -> @ast::expr;
     fn expr_block(&self, b: ast::Block) -> @ast::expr;
 
-    fn field_imm(&self, span: Span, name: ident, e: @ast::expr) -> ast::Field;
+    fn field_imm(&self, span: Span, name: Ident, e: @ast::expr) -> ast::Field;
     fn expr_struct(&self, span: Span, path: ast::Path, fields: ~[ast::Field]) -> @ast::expr;
-    fn expr_struct_ident(&self, span: Span, id: ast::ident, fields: ~[ast::Field]) -> @ast::expr;
+    fn expr_struct_ident(&self, span: Span, id: ast::Ident, fields: ~[ast::Field]) -> @ast::expr;
 
     fn expr_lit(&self, sp: Span, lit: ast::lit_) -> @ast::expr;
 
@@ -137,11 +137,11 @@ pub trait AstBuilder {
     fn pat(&self, span: Span, pat: ast::pat_) -> @ast::pat;
     fn pat_wild(&self, span: Span) -> @ast::pat;
     fn pat_lit(&self, span: Span, expr: @ast::expr) -> @ast::pat;
-    fn pat_ident(&self, span: Span, ident: ast::ident) -> @ast::pat;
+    fn pat_ident(&self, span: Span, ident: ast::Ident) -> @ast::pat;
 
     fn pat_ident_binding_mode(&self,
                               span: Span,
-                              ident: ast::ident,
+                              ident: ast::Ident,
                               bm: ast::binding_mode) -> @ast::pat;
     fn pat_enum(&self, span: Span, path: ast::Path, subpats: ~[@ast::pat]) -> @ast::pat;
     fn pat_struct(&self, span: Span,
@@ -156,65 +156,65 @@ pub trait AstBuilder {
 
     fn lambda_fn_decl(&self, span: Span, fn_decl: ast::fn_decl, blk: ast::Block) -> @ast::expr;
 
-    fn lambda(&self, span: Span, ids: ~[ast::ident], blk: ast::Block) -> @ast::expr;
+    fn lambda(&self, span: Span, ids: ~[ast::Ident], blk: ast::Block) -> @ast::expr;
     fn lambda0(&self, span: Span, blk: ast::Block) -> @ast::expr;
-    fn lambda1(&self, span: Span, blk: ast::Block, ident: ast::ident) -> @ast::expr;
+    fn lambda1(&self, span: Span, blk: ast::Block, ident: ast::Ident) -> @ast::expr;
 
-    fn lambda_expr(&self, span: Span, ids: ~[ast::ident], blk: @ast::expr) -> @ast::expr;
+    fn lambda_expr(&self, span: Span, ids: ~[ast::Ident], blk: @ast::expr) -> @ast::expr;
     fn lambda_expr_0(&self, span: Span, expr: @ast::expr) -> @ast::expr;
-    fn lambda_expr_1(&self, span: Span, expr: @ast::expr, ident: ast::ident) -> @ast::expr;
+    fn lambda_expr_1(&self, span: Span, expr: @ast::expr, ident: ast::Ident) -> @ast::expr;
 
-    fn lambda_stmts(&self, span: Span, ids: ~[ast::ident], blk: ~[@ast::stmt]) -> @ast::expr;
+    fn lambda_stmts(&self, span: Span, ids: ~[ast::Ident], blk: ~[@ast::stmt]) -> @ast::expr;
     fn lambda_stmts_0(&self, span: Span, stmts: ~[@ast::stmt]) -> @ast::expr;
-    fn lambda_stmts_1(&self, span: Span, stmts: ~[@ast::stmt], ident: ast::ident) -> @ast::expr;
+    fn lambda_stmts_1(&self, span: Span, stmts: ~[@ast::stmt], ident: ast::Ident) -> @ast::expr;
 
     // items
     fn item(&self, span: Span,
-            name: ident, attrs: ~[ast::Attribute], node: ast::item_) -> @ast::item;
+            name: Ident, attrs: ~[ast::Attribute], node: ast::item_) -> @ast::item;
 
-    fn arg(&self, span: Span, name: ident, ty: ast::Ty) -> ast::arg;
+    fn arg(&self, span: Span, name: Ident, ty: ast::Ty) -> ast::arg;
     // XXX unused self
     fn fn_decl(&self, inputs: ~[ast::arg], output: ast::Ty) -> ast::fn_decl;
 
     fn item_fn_poly(&self,
                     span: Span,
-                    name: ident,
+                    name: Ident,
                     inputs: ~[ast::arg],
                     output: ast::Ty,
                     generics: Generics,
                     body: ast::Block) -> @ast::item;
     fn item_fn(&self,
                span: Span,
-               name: ident,
+               name: Ident,
                inputs: ~[ast::arg],
                output: ast::Ty,
                body: ast::Block) -> @ast::item;
 
-    fn variant(&self, span: Span, name: ident, tys: ~[ast::Ty]) -> ast::variant;
+    fn variant(&self, span: Span, name: Ident, tys: ~[ast::Ty]) -> ast::variant;
     fn item_enum_poly(&self,
                       span: Span,
-                      name: ident,
+                      name: Ident,
                       enum_definition: ast::enum_def,
                       generics: Generics) -> @ast::item;
-    fn item_enum(&self, span: Span, name: ident, enum_def: ast::enum_def) -> @ast::item;
+    fn item_enum(&self, span: Span, name: Ident, enum_def: ast::enum_def) -> @ast::item;
 
     fn item_struct_poly(&self,
                         span: Span,
-                        name: ident,
+                        name: Ident,
                         struct_def: ast::struct_def,
                         generics: Generics) -> @ast::item;
-    fn item_struct(&self, span: Span, name: ident, struct_def: ast::struct_def) -> @ast::item;
+    fn item_struct(&self, span: Span, name: Ident, struct_def: ast::struct_def) -> @ast::item;
 
     fn item_mod(&self, span: Span,
-                name: ident, attrs: ~[ast::Attribute],
+                name: Ident, attrs: ~[ast::Attribute],
                 vi: ~[ast::view_item], items: ~[@ast::item]) -> @ast::item;
 
     fn item_ty_poly(&self,
                     span: Span,
-                    name: ident,
+                    name: Ident,
                     ty: ast::Ty,
                     generics: Generics) -> @ast::item;
-    fn item_ty(&self, span: Span, name: ident, ty: ast::Ty) -> @ast::item;
+    fn item_ty(&self, span: Span, name: Ident, ty: ast::Ty) -> @ast::item;
 
     fn attribute(&self, sp: Span, mi: @ast::MetaItem) -> ast::Attribute;
 
@@ -225,25 +225,25 @@ pub trait AstBuilder {
     fn view_use(&self, sp: Span,
                 vis: ast::visibility, vp: ~[@ast::view_path]) -> ast::view_item;
     fn view_use_list(&self, sp: Span, vis: ast::visibility,
-                     path: ~[ast::ident], imports: &[ast::ident]) -> ast::view_item;
+                     path: ~[ast::Ident], imports: &[ast::Ident]) -> ast::view_item;
     fn view_use_glob(&self, sp: Span,
-                     vis: ast::visibility, path: ~[ast::ident]) -> ast::view_item;
+                     vis: ast::visibility, path: ~[ast::Ident]) -> ast::view_item;
 }
 
 impl AstBuilder for @ExtCtxt {
-    fn path(&self, span: Span, strs: ~[ast::ident]) -> ast::Path {
+    fn path(&self, span: Span, strs: ~[ast::Ident]) -> ast::Path {
         self.path_all(span, false, strs, None, ~[])
     }
-    fn path_ident(&self, span: Span, id: ast::ident) -> ast::Path {
+    fn path_ident(&self, span: Span, id: ast::Ident) -> ast::Path {
         self.path(span, ~[id])
     }
-    fn path_global(&self, span: Span, strs: ~[ast::ident]) -> ast::Path {
+    fn path_global(&self, span: Span, strs: ~[ast::Ident]) -> ast::Path {
         self.path_all(span, true, strs, None, ~[])
     }
     fn path_all(&self,
                 sp: Span,
                 global: bool,
-                mut idents: ~[ast::ident],
+                mut idents: ~[ast::Ident],
                 rp: Option<ast::Lifetime>,
                 types: ~[ast::Ty])
                 -> ast::Path {
@@ -291,7 +291,7 @@ impl AstBuilder for @ExtCtxt {
 
     // Might need to take bounds as an argument in the future, if you ever want
     // to generate a bounded existential trait type.
-    fn ty_ident(&self, span: Span, ident: ast::ident)
+    fn ty_ident(&self, span: Span, ident: ast::Ident)
         -> ast::Ty {
         self.ty_path(self.path_ident(span, ident), None)
     }
@@ -326,7 +326,7 @@ impl AstBuilder for @ExtCtxt {
                           ~[ ty ]), None)
     }
 
-    fn ty_field_imm(&self, span: Span, name: ident, ty: ast::Ty) -> ast::TypeField {
+    fn ty_field_imm(&self, span: Span, name: Ident, ty: ast::Ty) -> ast::TypeField {
         ast::TypeField {
             ident: name,
             mt: ast::mt { ty: ~ty, mutbl: ast::m_imm },
@@ -346,7 +346,7 @@ impl AstBuilder for @ExtCtxt {
         }
     }
 
-    fn typaram(&self, id: ast::ident, bounds: OptVec<ast::TyParamBound>) -> ast::TyParam {
+    fn typaram(&self, id: ast::Ident, bounds: OptVec<ast::TyParamBound>) -> ast::TyParam {
         ast::TyParam { ident: id, id: self.next_id(), bounds: bounds }
     }
 
@@ -385,7 +385,7 @@ impl AstBuilder for @ExtCtxt {
         ast::TraitTyParamBound(self.trait_ref(path))
     }
 
-    fn lifetime(&self, span: Span, ident: ast::ident) -> ast::Lifetime {
+    fn lifetime(&self, span: Span, ident: ast::Ident) -> ast::Lifetime {
         ast::Lifetime { id: self.next_id(), span: span, ident: ident }
     }
 
@@ -393,7 +393,7 @@ impl AstBuilder for @ExtCtxt {
         @respan(expr.span, ast::stmt_semi(expr, self.next_id()))
     }
 
-    fn stmt_let(&self, sp: Span, mutbl: bool, ident: ast::ident, ex: @ast::expr) -> @ast::stmt {
+    fn stmt_let(&self, sp: Span, mutbl: bool, ident: ast::Ident, ex: @ast::expr) -> @ast::stmt {
         let pat = self.pat_ident(sp, ident);
         let local = @ast::Local {
             is_mutbl: mutbl,
@@ -410,7 +410,7 @@ impl AstBuilder for @ExtCtxt {
     fn stmt_let_typed(&self,
                       sp: Span,
                       mutbl: bool,
-                      ident: ast::ident,
+                      ident: ast::Ident,
                       typ: ast::Ty,
                       ex: @ast::expr)
                       -> @ast::stmt {
@@ -461,7 +461,7 @@ impl AstBuilder for @ExtCtxt {
         self.expr(path.span, ast::expr_path(path))
     }
 
-    fn expr_ident(&self, span: Span, id: ast::ident) -> @ast::expr {
+    fn expr_ident(&self, span: Span, id: ast::Ident) -> @ast::expr {
         self.expr_path(self.path_ident(span, id))
     }
     fn expr_self(&self, span: Span) -> @ast::expr {
@@ -485,7 +485,7 @@ impl AstBuilder for @ExtCtxt {
         self.expr_unary(sp, ast::box(ast::m_imm), e)
     }
 
-    fn expr_field_access(&self, sp: Span, expr: @ast::expr, ident: ast::ident) -> @ast::expr {
+    fn expr_field_access(&self, sp: Span, expr: @ast::expr, ident: ast::Ident) -> @ast::expr {
         self.expr(sp, ast::expr_field(expr, ident, ~[]))
     }
     fn expr_addr_of(&self, sp: Span, e: @ast::expr) -> @ast::expr {
@@ -498,18 +498,18 @@ impl AstBuilder for @ExtCtxt {
     fn expr_call(&self, span: Span, expr: @ast::expr, args: ~[@ast::expr]) -> @ast::expr {
         self.expr(span, ast::expr_call(expr, args, ast::NoSugar))
     }
-    fn expr_call_ident(&self, span: Span, id: ast::ident, args: ~[@ast::expr]) -> @ast::expr {
+    fn expr_call_ident(&self, span: Span, id: ast::Ident, args: ~[@ast::expr]) -> @ast::expr {
         self.expr(span,
                   ast::expr_call(self.expr_ident(span, id), args, ast::NoSugar))
     }
-    fn expr_call_global(&self, sp: Span, fn_path: ~[ast::ident],
+    fn expr_call_global(&self, sp: Span, fn_path: ~[ast::Ident],
                       args: ~[@ast::expr]) -> @ast::expr {
         let pathexpr = self.expr_path(self.path_global(sp, fn_path));
         self.expr_call(sp, pathexpr, args)
     }
     fn expr_method_call(&self, span: Span,
                         expr: @ast::expr,
-                        ident: ast::ident,
+                        ident: ast::Ident,
                         args: ~[@ast::expr]) -> @ast::expr {
         self.expr(span,
                   ast::expr_method_call(self.next_id(), expr, ident, ~[], args, ast::NoSugar))
@@ -517,14 +517,14 @@ impl AstBuilder for @ExtCtxt {
     fn expr_block(&self, b: ast::Block) -> @ast::expr {
         self.expr(b.span, ast::expr_block(b))
     }
-    fn field_imm(&self, span: Span, name: ident, e: @ast::expr) -> ast::Field {
+    fn field_imm(&self, span: Span, name: Ident, e: @ast::expr) -> ast::Field {
         ast::Field { ident: name, expr: e, span: span }
     }
     fn expr_struct(&self, span: Span, path: ast::Path, fields: ~[ast::Field]) -> @ast::expr {
         self.expr(span, ast::expr_struct(path, fields, None))
     }
     fn expr_struct_ident(&self, span: Span,
-                         id: ast::ident, fields: ~[ast::Field]) -> @ast::expr {
+                         id: ast::Ident, fields: ~[ast::Field]) -> @ast::expr {
         self.expr_struct(span, self.path_ident(span, id), fields)
     }
 
@@ -591,13 +591,13 @@ impl AstBuilder for @ExtCtxt {
     fn pat_lit(&self, span: Span, expr: @ast::expr) -> @ast::pat {
         self.pat(span, ast::pat_lit(expr))
     }
-    fn pat_ident(&self, span: Span, ident: ast::ident) -> @ast::pat {
+    fn pat_ident(&self, span: Span, ident: ast::Ident) -> @ast::pat {
         self.pat_ident_binding_mode(span, ident, ast::bind_infer)
     }
 
     fn pat_ident_binding_mode(&self,
                               span: Span,
-                              ident: ast::ident,
+                              ident: ast::Ident,
                               bm: ast::binding_mode) -> @ast::pat {
         let path = self.path_ident(span, ident);
         let pat = ast::pat_ident(bm, path, None);
@@ -638,7 +638,7 @@ impl AstBuilder for @ExtCtxt {
     fn lambda_fn_decl(&self, span: Span, fn_decl: ast::fn_decl, blk: ast::Block) -> @ast::expr {
         self.expr(span, ast::expr_fn_block(fn_decl, blk))
     }
-    fn lambda(&self, span: Span, ids: ~[ast::ident], blk: ast::Block) -> @ast::expr {
+    fn lambda(&self, span: Span, ids: ~[ast::Ident], blk: ast::Block) -> @ast::expr {
         let fn_decl = self.fn_decl(
             ids.map(|id| self.arg(span, *id, self.ty_infer(span))),
             self.ty_infer(span));
@@ -658,38 +658,38 @@ impl AstBuilder for @ExtCtxt {
     }
 
     #[cfg(stage0)]
-    fn lambda1(&self, _span: Span, blk: ast::Block, ident: ast::ident) -> @ast::expr {
+    fn lambda1(&self, _span: Span, blk: ast::Block, ident: ast::Ident) -> @ast::expr {
         let ext_cx = *self;
         let blk_e = self.expr(blk.span, ast::expr_block(blk.clone()));
         quote_expr!(|$ident| $blk_e )
     }
     #[cfg(not(stage0))]
-    fn lambda1(&self, _span: Span, blk: ast::Block, ident: ast::ident) -> @ast::expr {
+    fn lambda1(&self, _span: Span, blk: ast::Block, ident: ast::Ident) -> @ast::expr {
         let blk_e = self.expr(blk.span, ast::expr_block(blk.clone()));
         quote_expr!(*self, |$ident| $blk_e )
     }
 
-    fn lambda_expr(&self, span: Span, ids: ~[ast::ident], expr: @ast::expr) -> @ast::expr {
+    fn lambda_expr(&self, span: Span, ids: ~[ast::Ident], expr: @ast::expr) -> @ast::expr {
         self.lambda(span, ids, self.block_expr(expr))
     }
     fn lambda_expr_0(&self, span: Span, expr: @ast::expr) -> @ast::expr {
         self.lambda0(span, self.block_expr(expr))
     }
-    fn lambda_expr_1(&self, span: Span, expr: @ast::expr, ident: ast::ident) -> @ast::expr {
+    fn lambda_expr_1(&self, span: Span, expr: @ast::expr, ident: ast::Ident) -> @ast::expr {
         self.lambda1(span, self.block_expr(expr), ident)
     }
 
-    fn lambda_stmts(&self, span: Span, ids: ~[ast::ident], stmts: ~[@ast::stmt]) -> @ast::expr {
+    fn lambda_stmts(&self, span: Span, ids: ~[ast::Ident], stmts: ~[@ast::stmt]) -> @ast::expr {
         self.lambda(span, ids, self.block(span, stmts, None))
     }
     fn lambda_stmts_0(&self, span: Span, stmts: ~[@ast::stmt]) -> @ast::expr {
         self.lambda0(span, self.block(span, stmts, None))
     }
-    fn lambda_stmts_1(&self, span: Span, stmts: ~[@ast::stmt], ident: ast::ident) -> @ast::expr {
+    fn lambda_stmts_1(&self, span: Span, stmts: ~[@ast::stmt], ident: ast::Ident) -> @ast::expr {
         self.lambda1(span, self.block(span, stmts, None), ident)
     }
 
-    fn arg(&self, span: Span, ident: ast::ident, ty: ast::Ty) -> ast::arg {
+    fn arg(&self, span: Span, ident: ast::Ident, ty: ast::Ty) -> ast::arg {
         let arg_pat = self.pat_ident(span, ident);
         ast::arg {
             is_mutbl: false,
@@ -709,7 +709,7 @@ impl AstBuilder for @ExtCtxt {
     }
 
     fn item(&self, span: Span,
-            name: ident, attrs: ~[ast::Attribute], node: ast::item_) -> @ast::item {
+            name: Ident, attrs: ~[ast::Attribute], node: ast::item_) -> @ast::item {
         // XXX: Would be nice if our generated code didn't violate
         // Rust coding conventions
         @ast::item { ident: name,
@@ -722,7 +722,7 @@ impl AstBuilder for @ExtCtxt {
 
     fn item_fn_poly(&self,
                     span: Span,
-                    name: ident,
+                    name: Ident,
                     inputs: ~[ast::arg],
                     output: ast::Ty,
                     generics: Generics,
@@ -739,7 +739,7 @@ impl AstBuilder for @ExtCtxt {
 
     fn item_fn(&self,
                span: Span,
-               name: ident,
+               name: Ident,
                inputs: ~[ast::arg],
                output: ast::Ty,
                body: ast::Block
@@ -753,7 +753,7 @@ impl AstBuilder for @ExtCtxt {
             body)
     }
 
-    fn variant(&self, span: Span, name: ident, tys: ~[ast::Ty]) -> ast::variant {
+    fn variant(&self, span: Span, name: Ident, tys: ~[ast::Ty]) -> ast::variant {
         let args = tys.move_iter().map(|ty| {
             ast::variant_arg { ty: ty, id: self.next_id() }
         }).collect();
@@ -769,13 +769,13 @@ impl AstBuilder for @ExtCtxt {
                })
     }
 
-    fn item_enum_poly(&self, span: Span, name: ident,
+    fn item_enum_poly(&self, span: Span, name: Ident,
                       enum_definition: ast::enum_def,
                       generics: Generics) -> @ast::item {
         self.item(span, name, ~[], ast::item_enum(enum_definition, generics))
     }
 
-    fn item_enum(&self, span: Span, name: ident,
+    fn item_enum(&self, span: Span, name: Ident,
                  enum_definition: ast::enum_def) -> @ast::item {
         self.item_enum_poly(span, name, enum_definition,
                             ast_util::empty_generics())
@@ -784,7 +784,7 @@ impl AstBuilder for @ExtCtxt {
     fn item_struct(
         &self,
         span: Span,
-        name: ident,
+        name: Ident,
         struct_def: ast::struct_def
     ) -> @ast::item {
         self.item_struct_poly(
@@ -798,14 +798,14 @@ impl AstBuilder for @ExtCtxt {
     fn item_struct_poly(
         &self,
         span: Span,
-        name: ident,
+        name: Ident,
         struct_def: ast::struct_def,
         generics: Generics
     ) -> @ast::item {
         self.item(span, name, ~[], ast::item_struct(@struct_def, generics))
     }
 
-    fn item_mod(&self, span: Span, name: ident,
+    fn item_mod(&self, span: Span, name: Ident,
                 attrs: ~[ast::Attribute],
                 vi: ~[ast::view_item],
                 items: ~[@ast::item]) -> @ast::item {
@@ -820,12 +820,12 @@ impl AstBuilder for @ExtCtxt {
         )
     }
 
-    fn item_ty_poly(&self, span: Span, name: ident, ty: ast::Ty,
+    fn item_ty_poly(&self, span: Span, name: Ident, ty: ast::Ty,
                     generics: Generics) -> @ast::item {
         self.item(span, name, ~[], ast::item_ty(ty, generics))
     }
 
-    fn item_ty(&self, span: Span, name: ident, ty: ast::Ty) -> @ast::item {
+    fn item_ty(&self, span: Span, name: Ident, ty: ast::Ty) -> @ast::item {
         self.item_ty_poly(span, name, ty, ast_util::empty_generics())
     }
 
@@ -858,7 +858,7 @@ impl AstBuilder for @ExtCtxt {
     }
 
     fn view_use_list(&self, sp: Span, vis: ast::visibility,
-                     path: ~[ast::ident], imports: &[ast::ident]) -> ast::view_item {
+                     path: ~[ast::Ident], imports: &[ast::Ident]) -> ast::view_item {
         let imports = do imports.map |id| {
             respan(sp, ast::path_list_ident_ { name: *id, id: self.next_id() })
         };
@@ -871,7 +871,7 @@ impl AstBuilder for @ExtCtxt {
     }
 
     fn view_use_glob(&self, sp: Span,
-                     vis: ast::visibility, path: ~[ast::ident]) -> ast::view_item {
+                     vis: ast::visibility, path: ~[ast::Ident]) -> ast::view_item {
         self.view_use(sp, vis,
                       ~[@respan(sp,
                                 ast::view_path_glob(self.path(sp, path), self.next_id()))])
diff --git a/src/libsyntax/ext/deriving/generic.rs b/src/libsyntax/ext/deriving/generic.rs
index c8853e36cdd0c..eb05f87a8ceac 100644
--- a/src/libsyntax/ext/deriving/generic.rs
+++ b/src/libsyntax/ext/deriving/generic.rs
@@ -163,7 +163,7 @@ StaticEnum(<ast::enum_def of C>, ~[(<ident of C0>, Left(1)),
 */
 
 use ast;
-use ast::{enum_def, expr, ident, Generics, struct_def};
+use ast::{enum_def, expr, Ident, Generics, struct_def};
 
 use ext::base::ExtCtxt;
 use ext::build::AstBuilder;
@@ -216,9 +216,9 @@ pub struct MethodDef<'self> {
 /// All the data about the data structure/method being derived upon.
 pub struct Substructure<'self> {
     /// ident of self
-    type_ident: ident,
+    type_ident: Ident,
     /// ident of the method
-    method_ident: ident,
+    method_ident: Ident,
     /// dereferenced access to any Self or Ptr(Self, _) arguments
     self_args: &'self [@expr],
     /// verbatim access to any other arguments
@@ -234,26 +234,26 @@ pub enum SubstructureFields<'self> {
     ident is the ident of the current field (`None` for all fields in tuple
     structs).
     */
-    Struct(~[(Option<ident>, @expr, ~[@expr])]),
+    Struct(~[(Option<Ident>, @expr, ~[@expr])]),
 
     /**
     Matching variants of the enum: variant index, ast::variant,
     fields: `(field ident, self, [others])`, where the field ident is
     only non-`None` in the case of a struct variant.
     */
-    EnumMatching(uint, &'self ast::variant, ~[(Option<ident>, @expr, ~[@expr])]),
+    EnumMatching(uint, &'self ast::variant, ~[(Option<Ident>, @expr, ~[@expr])]),
 
     /**
     non-matching variants of the enum, [(variant index, ast::variant,
     [field ident, fields])] (i.e. all fields for self are in the
     first tuple, for other1 are in the second tuple, etc.)
     */
-    EnumNonMatching(&'self [(uint, ast::variant, ~[(Option<ident>, @expr)])]),
+    EnumNonMatching(&'self [(uint, ast::variant, ~[(Option<Ident>, @expr)])]),
 
     /// A static method where Self is a struct
-    StaticStruct(&'self ast::struct_def, Either<uint, ~[ident]>),
+    StaticStruct(&'self ast::struct_def, Either<uint, ~[Ident]>),
     /// A static method where Self is an enum
-    StaticEnum(&'self ast::enum_def, ~[(ident, Either<uint, ~[ident]>)])
+    StaticEnum(&'self ast::enum_def, ~[(Ident, Either<uint, ~[Ident]>)])
 }
 
 
@@ -273,7 +273,7 @@ representing each variant: (variant index, ast::variant instance,
 pub type EnumNonMatchFunc<'self> =
     &'self fn(@ExtCtxt, Span,
               &[(uint, ast::variant,
-                 ~[(Option<ident>, @expr)])],
+                 ~[(Option<Ident>, @expr)])],
               &[@expr]) -> @expr;
 
 
@@ -315,7 +315,7 @@ impl<'self> TraitDef<'self> {
      *
      */
     fn create_derived_impl(&self, cx: @ExtCtxt, span: Span,
-                           type_ident: ident, generics: &Generics,
+                           type_ident: Ident, generics: &Generics,
                            methods: ~[@ast::method]) -> @ast::item {
         let trait_path = self.path.to_path(cx, span, type_ident, generics);
 
@@ -375,7 +375,7 @@ impl<'self> TraitDef<'self> {
     fn expand_struct_def(&self, cx: @ExtCtxt,
                          span: Span,
                          struct_def: &struct_def,
-                         type_ident: ident,
+                         type_ident: Ident,
                          generics: &Generics) -> @ast::item {
         let methods = do self.methods.map |method_def| {
             let (explicit_self, self_args, nonself_args, tys) =
@@ -406,7 +406,7 @@ impl<'self> TraitDef<'self> {
     fn expand_enum_def(&self,
                        cx: @ExtCtxt, span: Span,
                        enum_def: &enum_def,
-                       type_ident: ident,
+                       type_ident: Ident,
                        generics: &Generics) -> @ast::item {
         let methods = do self.methods.map |method_def| {
             let (explicit_self, self_args, nonself_args, tys) =
@@ -439,7 +439,7 @@ impl<'self> MethodDef<'self> {
     fn call_substructure_method(&self,
                                 cx: @ExtCtxt,
                                 span: Span,
-                                type_ident: ident,
+                                type_ident: Ident,
                                 self_args: &[@expr],
                                 nonself_args: &[@expr],
                                 fields: &SubstructureFields)
@@ -456,7 +456,7 @@ impl<'self> MethodDef<'self> {
     }
 
     fn get_ret_ty(&self, cx: @ExtCtxt, span: Span,
-                     generics: &Generics, type_ident: ident) -> ast::Ty {
+                     generics: &Generics, type_ident: Ident) -> ast::Ty {
         self.ret_ty.to_ty(cx, span, type_ident, generics)
     }
 
@@ -465,8 +465,8 @@ impl<'self> MethodDef<'self> {
     }
 
     fn split_self_nonself_args(&self, cx: @ExtCtxt, span: Span,
-                             type_ident: ident, generics: &Generics)
-        -> (ast::explicit_self, ~[@expr], ~[@expr], ~[(ident, ast::Ty)]) {
+                             type_ident: Ident, generics: &Generics)
+        -> (ast::explicit_self, ~[@expr], ~[@expr], ~[(Ident, ast::Ty)]) {
 
         let mut self_args = ~[];
         let mut nonself_args = ~[];
@@ -511,10 +511,10 @@ impl<'self> MethodDef<'self> {
     }
 
     fn create_method(&self, cx: @ExtCtxt, span: Span,
-                     type_ident: ident,
+                     type_ident: Ident,
                      generics: &Generics,
                      explicit_self: ast::explicit_self,
-                     arg_types: ~[(ident, ast::Ty)],
+                     arg_types: ~[(Ident, ast::Ty)],
                      body: @expr) -> @ast::method {
         // create the generics that aren't for Self
         let fn_generics = self.generics.to_generics(cx, span, type_ident, generics);
@@ -571,7 +571,7 @@ impl<'self> MethodDef<'self> {
                                  cx: @ExtCtxt,
                                  span: Span,
                                  struct_def: &struct_def,
-                                 type_ident: ident,
+                                 type_ident: Ident,
                                  self_args: &[@expr],
                                  nonself_args: &[@expr])
         -> @expr {
@@ -625,7 +625,7 @@ impl<'self> MethodDef<'self> {
                                         cx: @ExtCtxt,
                                         span: Span,
                                         struct_def: &struct_def,
-                                        type_ident: ident,
+                                        type_ident: Ident,
                                         self_args: &[@expr],
                                         nonself_args: &[@expr])
         -> @expr {
@@ -667,7 +667,7 @@ impl<'self> MethodDef<'self> {
                                cx: @ExtCtxt,
                                span: Span,
                                enum_def: &enum_def,
-                               type_ident: ident,
+                               type_ident: Ident,
                                self_args: &[@expr],
                                nonself_args: &[@expr])
         -> @expr {
@@ -702,12 +702,12 @@ impl<'self> MethodDef<'self> {
     fn build_enum_match(&self,
                         cx: @ExtCtxt, span: Span,
                         enum_def: &enum_def,
-                        type_ident: ident,
+                        type_ident: Ident,
                         self_args: &[@expr],
                         nonself_args: &[@expr],
                         matching: Option<uint>,
                         matches_so_far: &mut ~[(uint, ast::variant,
-                                              ~[(Option<ident>, @expr)])],
+                                              ~[(Option<Ident>, @expr)])],
                         match_count: uint) -> @expr {
         if match_count == self_args.len() {
             // we've matched against all arguments, so make the final
@@ -852,7 +852,7 @@ impl<'self> MethodDef<'self> {
                                cx: @ExtCtxt,
                                span: Span,
                                enum_def: &enum_def,
-                               type_ident: ident,
+                               type_ident: Ident,
                                self_args: &[@expr],
                                nonself_args: &[@expr])
         -> @expr {
@@ -874,7 +874,7 @@ impl<'self> MethodDef<'self> {
 }
 
 fn summarise_struct(cx: @ExtCtxt, span: Span,
-                    struct_def: &struct_def) -> Either<uint, ~[ident]> {
+                    struct_def: &struct_def) -> Either<uint, ~[Ident]> {
     let mut named_idents = ~[];
     let mut unnamed_count = 0;
     for field in struct_def.fields.iter() {
@@ -913,11 +913,11 @@ enum StructType {
 
 fn create_struct_pattern(cx: @ExtCtxt,
                              span: Span,
-                             struct_ident: ident,
+                             struct_ident: Ident,
                              struct_def: &struct_def,
                              prefix: &str,
                              mutbl: ast::mutability)
-    -> (@ast::pat, ~[(Option<ident>, @expr)]) {
+    -> (@ast::pat, ~[(Option<Ident>, @expr)]) {
     if struct_def.fields.is_empty() {
         return (
             cx.pat_ident_binding_mode(
@@ -977,7 +977,7 @@ fn create_enum_variant_pattern(cx: @ExtCtxt,
                                    variant: &ast::variant,
                                    prefix: &str,
                                    mutbl: ast::mutability)
-    -> (@ast::pat, ~[(Option<ident>, @expr)]) {
+    -> (@ast::pat, ~[(Option<Ident>, @expr)]) {
 
     let variant_ident = variant.node.name;
     match variant.node.kind {
diff --git a/src/libsyntax/ext/deriving/mod.rs b/src/libsyntax/ext/deriving/mod.rs
index 0123044478c2a..7fd44bfad01f2 100644
--- a/src/libsyntax/ext/deriving/mod.rs
+++ b/src/libsyntax/ext/deriving/mod.rs
@@ -18,7 +18,7 @@ library.
 
 */
 
-use ast::{enum_def, ident, item, Generics, struct_def};
+use ast::{enum_def, Ident, item, Generics, struct_def};
 use ast::{MetaItem, MetaList, MetaNameValue, MetaWord};
 use ext::base::ExtCtxt;
 use ext::build::AstBuilder;
@@ -47,13 +47,13 @@ pub mod generic;
 pub type ExpandDerivingStructDefFn<'self> = &'self fn(@ExtCtxt,
                                                        Span,
                                                        x: &struct_def,
-                                                       ident,
+                                                       Ident,
                                                        y: &Generics)
                                                  -> @item;
 pub type ExpandDerivingEnumDefFn<'self> = &'self fn(@ExtCtxt,
                                                     Span,
                                                     x: &enum_def,
-                                                    ident,
+                                                    Ident,
                                                     y: &Generics)
                                                  -> @item;
 
diff --git a/src/libsyntax/ext/deriving/rand.rs b/src/libsyntax/ext/deriving/rand.rs
index 485df6084a890..b24c8eb84abdd 100644
--- a/src/libsyntax/ext/deriving/rand.rs
+++ b/src/libsyntax/ext/deriving/rand.rs
@@ -9,7 +9,7 @@
 // except according to those terms.
 
 use ast;
-use ast::{MetaItem, item, expr, ident};
+use ast::{MetaItem, item, expr, Ident};
 use codemap::Span;
 use ext::base::ExtCtxt;
 use ext::build::{AstBuilder, Duplicate};
@@ -129,8 +129,8 @@ fn rand_substructure(cx: @ExtCtxt, span: Span, substr: &Substructure) -> @expr {
     };
 
     fn rand_thing(cx: @ExtCtxt, span: Span,
-                  ctor_ident: ident,
-                  summary: &Either<uint, ~[ident]>,
+                  ctor_ident: Ident,
+                  summary: &Either<uint, ~[Ident]>,
                   rand_call: &fn() -> @expr) -> @expr {
         match *summary {
             Left(count) => {
diff --git a/src/libsyntax/ext/deriving/to_str.rs b/src/libsyntax/ext/deriving/to_str.rs
index 1b136983de8d7..eecce06f69f0b 100644
--- a/src/libsyntax/ext/deriving/to_str.rs
+++ b/src/libsyntax/ext/deriving/to_str.rs
@@ -47,8 +47,8 @@ fn to_str_substructure(cx: @ExtCtxt, span: Span,
                        substr: &Substructure) -> @expr {
     let to_str = cx.ident_of("to_str");
 
-    let doit = |start: &str, end: @str, name: ast::ident,
-                fields: &[(Option<ast::ident>, @expr, ~[@expr])]| {
+    let doit = |start: &str, end: @str, name: ast::Ident,
+                fields: &[(Option<ast::Ident>, @expr, ~[@expr])]| {
         if fields.len() == 0 {
             cx.expr_str_uniq(span, cx.str_of(name))
         } else {
diff --git a/src/libsyntax/ext/deriving/ty.rs b/src/libsyntax/ext/deriving/ty.rs
index f0b22d9b28876..6c1b8100f4204 100644
--- a/src/libsyntax/ext/deriving/ty.rs
+++ b/src/libsyntax/ext/deriving/ty.rs
@@ -14,7 +14,7 @@ explicit `Self` type to use when specifying impls to be derived.
 */
 
 use ast;
-use ast::{expr,Generics,ident};
+use ast::{expr,Generics,Ident};
 use ext::base::ExtCtxt;
 use ext::build::AstBuilder;
 use codemap::{Span,respan};
@@ -59,7 +59,7 @@ impl<'self> Path<'self> {
     pub fn to_ty(&self,
                  cx: @ExtCtxt,
                  span: Span,
-                 self_ty: ident,
+                 self_ty: Ident,
                  self_generics: &Generics)
                  -> ast::Ty {
         cx.ty_path(self.to_path(cx, span, self_ty, self_generics), None)
@@ -67,7 +67,7 @@ impl<'self> Path<'self> {
     pub fn to_path(&self,
                    cx: @ExtCtxt,
                    span: Span,
-                   self_ty: ident,
+                   self_ty: Ident,
                    self_generics: &Generics)
                    -> ast::Path {
         let idents = self.path.map(|s| cx.ident_of(*s) );
@@ -120,7 +120,7 @@ impl<'self> Ty<'self> {
     pub fn to_ty(&self,
                  cx: @ExtCtxt,
                  span: Span,
-                 self_ty: ident,
+                 self_ty: Ident,
                  self_generics: &Generics)
                  -> ast::Ty {
         match *self {
@@ -158,7 +158,7 @@ impl<'self> Ty<'self> {
     pub fn to_path(&self,
                    cx: @ExtCtxt,
                    span: Span,
-                   self_ty: ident,
+                   self_ty: Ident,
                    self_generics: &Generics)
                    -> ast::Path {
         match *self {
@@ -186,7 +186,7 @@ impl<'self> Ty<'self> {
 
 
 fn mk_ty_param(cx: @ExtCtxt, span: Span, name: &str, bounds: &[Path],
-               self_ident: ident, self_generics: &Generics) -> ast::TyParam {
+               self_ident: Ident, self_generics: &Generics) -> ast::TyParam {
     let bounds = opt_vec::from(
         do bounds.map |b| {
             let path = b.to_path(cx, span, self_ident, self_generics);
@@ -217,7 +217,7 @@ impl<'self> LifetimeBounds<'self> {
     pub fn to_generics(&self,
                        cx: @ExtCtxt,
                        span: Span,
-                       self_ty: ident,
+                       self_ty: Ident,
                        self_generics: &Generics)
                        -> Generics {
         let lifetimes = do self.lifetimes.map |lt| {
diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index eb1eaffe75728..0827a9fabee5c 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use ast::{Block, Crate, NodeId, expr_, expr_mac, ident, mac_invoc_tt};
+use ast::{Block, Crate, NodeId, expr_, expr_mac, Ident, mac_invoc_tt};
 use ast::{item_mac, stmt_, stmt_mac, stmt_expr, stmt_semi};
 use ast::{illegal_ctxt};
 use ast;
@@ -140,7 +140,7 @@ pub fn expand_expr(extsbox: @mut SyntaxEnv,
                 }
             }
 
-            fn mk_simple_path(ident: ast::ident, span: Span) -> ast::Path {
+            fn mk_simple_path(ident: ast::Ident, span: Span) -> ast::Path {
                 ast::Path {
                     span: span,
                     global: false,
@@ -523,7 +523,7 @@ pub fn expand_stmt(extsbox: @mut SyntaxEnv,
 
 #[deriving(Clone)]
 struct NewNameFinderContext {
-    ident_accumulator: @mut ~[ast::ident],
+    ident_accumulator: @mut ~[ast::Ident],
 }
 
 impl Visitor<()> for NewNameFinderContext {
@@ -645,7 +645,7 @@ impl Visitor<()> for NewNameFinderContext {
 
     fn visit_struct_def(&mut self,
                         struct_def: @ast::struct_def,
-                        ident: ident,
+                        ident: Ident,
                         generics: &ast::Generics,
                         node_id: NodeId,
                         _: ()) {
@@ -667,7 +667,7 @@ impl Visitor<()> for NewNameFinderContext {
 // return a visitor that extracts the pat_ident paths
 // from a given pattern and puts them in a mutable
 // array (passed in to the traversal)
-pub fn new_name_finder(idents: @mut ~[ast::ident]) -> @mut Visitor<()> {
+pub fn new_name_finder(idents: @mut ~[ast::Ident]) -> @mut Visitor<()> {
     let context = @mut NewNameFinderContext {
         ident_accumulator: idents,
     };
@@ -697,7 +697,7 @@ fn get_block_info(exts : SyntaxEnv) -> BlockInfo {
 
 // given a mutable list of renames, return a tree-folder that applies those
 // renames.
-fn renames_to_fold(renames : @mut ~[(ast::ident,ast::Name)]) -> @ast_fold {
+fn renames_to_fold(renames : @mut ~[(ast::Ident,ast::Name)]) -> @ast_fold {
     let afp = default_ast_fold();
     let f_pre = @AstFoldFns {
         fold_ident: |id,_| {
@@ -706,7 +706,7 @@ fn renames_to_fold(renames : @mut ~[(ast::ident,ast::Name)]) -> @ast_fold {
             let new_ctxt = renames.iter().fold(id.ctxt,|ctxt,&(from,to)| {
                 new_rename(from,to,ctxt)
             });
-            ast::ident{name:id.name,ctxt:new_ctxt}
+            ast::Ident{name:id.name,ctxt:new_ctxt}
         },
         .. *afp
     };
@@ -1144,7 +1144,7 @@ pub fn expand_crate(parse_sess: @mut parse::ParseSess,
 
 // given a function from idents to idents, produce
 // an ast_fold that applies that function:
-pub fn fun_to_ident_folder(f: @fn(ast::ident)->ast::ident) -> @ast_fold{
+pub fn fun_to_ident_folder(f: @fn(ast::Ident)->ast::Ident) -> @ast_fold{
     let afp = default_ast_fold();
     let f_pre = @AstFoldFns{
         fold_ident : |id, _| f(id),
@@ -1154,11 +1154,11 @@ pub fn fun_to_ident_folder(f: @fn(ast::ident)->ast::ident) -> @ast_fold{
 }
 
 // update the ctxts in a path to get a rename node
-pub fn new_ident_renamer(from: ast::ident,
+pub fn new_ident_renamer(from: ast::Ident,
                       to: ast::Name) ->
-    @fn(ast::ident)->ast::ident {
-    |id : ast::ident|
-    ast::ident{
+    @fn(ast::Ident)->ast::Ident {
+    |id : ast::Ident|
+    ast::Ident{
         name: id.name,
         ctxt: new_rename(from,to,id.ctxt)
     }
@@ -1167,9 +1167,9 @@ pub fn new_ident_renamer(from: ast::ident,
 
 // update the ctxts in a path to get a mark node
 pub fn new_ident_marker(mark: uint) ->
-    @fn(ast::ident)->ast::ident {
-    |id : ast::ident|
-    ast::ident{
+    @fn(ast::Ident)->ast::Ident {
+    |id : ast::Ident|
+    ast::Ident{
         name: id.name,
         ctxt: new_mark(mark,id.ctxt)
     }
@@ -1178,9 +1178,9 @@ pub fn new_ident_marker(mark: uint) ->
 // perform resolution (in the MTWT sense) on all of the
 // idents in the tree. This is the final step in expansion.
 pub fn new_ident_resolver() ->
-    @fn(ast::ident)->ast::ident {
-    |id : ast::ident|
-    ast::ident {
+    @fn(ast::Ident)->ast::Ident {
+    |id : ast::Ident|
+    ast::Ident {
         name : resolve(id),
         ctxt : illegal_ctxt
     }
@@ -1304,7 +1304,7 @@ mod test {
         };
         let a_name = intern("a");
         let a2_name = intern("a2");
-        let renamer = new_ident_renamer(ast::ident{name:a_name,ctxt:empty_ctxt},
+        let renamer = new_ident_renamer(ast::Ident{name:a_name,ctxt:empty_ctxt},
                                         a2_name);
         let renamed_ast = fun_to_ident_folder(renamer).fold_item(item_ast).unwrap();
         let resolver = new_ident_resolver();
diff --git a/src/libsyntax/ext/fmt.rs b/src/libsyntax/ext/fmt.rs
index 4bfb4da7a49da..4e7275b75c8ef 100644
--- a/src/libsyntax/ext/fmt.rs
+++ b/src/libsyntax/ext/fmt.rs
@@ -50,7 +50,7 @@ pub fn expand_syntax_ext(cx: @ExtCtxt, sp: Span, tts: &[ast::token_tree])
 fn pieces_to_expr(cx: @ExtCtxt, sp: Span,
                   pieces: ~[Piece], args: ~[@ast::expr])
    -> @ast::expr {
-    fn make_path_vec(ident: &str) -> ~[ast::ident] {
+    fn make_path_vec(ident: &str) -> ~[ast::Ident] {
         return ~[str_to_ident("std"),
                  str_to_ident("unstable"),
                  str_to_ident("extfmt"),
diff --git a/src/libsyntax/ext/ifmt.rs b/src/libsyntax/ext/ifmt.rs
index eab5f65777551..474c0ce60a782 100644
--- a/src/libsyntax/ext/ifmt.rs
+++ b/src/libsyntax/ext/ifmt.rs
@@ -637,7 +637,7 @@ impl Context {
     }
 
     fn format_arg(&self, sp: Span, arg: Either<uint, @str>,
-                  ident: ast::ident) -> @ast::expr {
+                  ident: ast::Ident) -> @ast::expr {
         let ty = match arg {
             Left(i) => self.arg_types[i].unwrap(),
             Right(s) => *self.name_types.get(&s)
diff --git a/src/libsyntax/ext/quote.rs b/src/libsyntax/ext/quote.rs
index 05e639632ede0..bea18d868a0d1 100644
--- a/src/libsyntax/ext/quote.rs
+++ b/src/libsyntax/ext/quote.rs
@@ -68,7 +68,7 @@ pub mod rt {
         fn to_source(&self) -> @str;
     }
 
-    impl ToSource for ast::ident {
+    impl ToSource for ast::Ident {
         fn to_source(&self) -> @str {
             ident_to_str(self)
         }
@@ -216,7 +216,7 @@ pub mod rt {
         )
     )
 
-    impl_to_tokens!(ast::ident)
+    impl_to_tokens!(ast::Ident)
     impl_to_tokens!(@ast::item)
     impl_to_tokens_self!(&'self [@ast::item])
     impl_to_tokens!(ast::Ty)
@@ -334,16 +334,16 @@ pub fn expand_quote_stmt(cx: @ExtCtxt,
                                     ~[e_attrs], tts))
 }
 
-fn ids_ext(strs: ~[~str]) -> ~[ast::ident] {
+fn ids_ext(strs: ~[~str]) -> ~[ast::Ident] {
     strs.map(|str| str_to_ident(*str))
 }
 
-fn id_ext(str: &str) -> ast::ident {
+fn id_ext(str: &str) -> ast::Ident {
     str_to_ident(str)
 }
 
 // Lift an ident to the expr that evaluates to that ident.
-fn mk_ident(cx: @ExtCtxt, sp: Span, ident: ast::ident) -> @ast::expr {
+fn mk_ident(cx: @ExtCtxt, sp: Span, ident: ast::Ident) -> @ast::expr {
     let e_str = cx.expr_str(sp, cx.str_of(ident));
     cx.expr_method_call(sp,
                         cx.expr_ident(sp, id_ext("ext_cx")),
diff --git a/src/libsyntax/ext/tt/macro_parser.rs b/src/libsyntax/ext/tt/macro_parser.rs
index bc4b1010943a1..7a9e916421c0f 100644
--- a/src/libsyntax/ext/tt/macro_parser.rs
+++ b/src/libsyntax/ext/tt/macro_parser.rs
@@ -11,7 +11,7 @@
 // Earley-like parser for macros.
 
 use ast;
-use ast::{matcher, match_tok, match_seq, match_nonterminal, ident};
+use ast::{matcher, match_tok, match_seq, match_nonterminal, Ident};
 use codemap::{BytePos, mk_sp};
 use codemap;
 use parse::lexer::*; //resolve bug?
@@ -189,9 +189,9 @@ pub enum named_match {
 pub type earley_item = ~MatcherPos;
 
 pub fn nameize(p_s: @mut ParseSess, ms: &[matcher], res: &[@named_match])
-            -> HashMap<ident,@named_match> {
+            -> HashMap<Ident,@named_match> {
     fn n_rec(p_s: @mut ParseSess, m: &matcher, res: &[@named_match],
-             ret_val: &mut HashMap<ident, @named_match>) {
+             ret_val: &mut HashMap<Ident, @named_match>) {
         match *m {
           codemap::Spanned {node: match_tok(_), _} => (),
           codemap::Spanned {node: match_seq(ref more_ms, _, _, _, _), _} => {
@@ -216,7 +216,7 @@ pub fn nameize(p_s: @mut ParseSess, ms: &[matcher], res: &[@named_match])
 }
 
 pub enum parse_result {
-    success(HashMap<ident, @named_match>),
+    success(HashMap<Ident, @named_match>),
     failure(codemap::Span, ~str),
     error(codemap::Span, ~str)
 }
@@ -226,7 +226,7 @@ pub fn parse_or_else(
     cfg: ast::CrateConfig,
     rdr: @mut reader,
     ms: ~[matcher]
-) -> HashMap<ident, @named_match> {
+) -> HashMap<Ident, @named_match> {
     match parse(sess, cfg, rdr, ms) {
       success(m) => m,
       failure(sp, str) => sess.span_diagnostic.span_fatal(sp, str),
diff --git a/src/libsyntax/ext/tt/macro_rules.rs b/src/libsyntax/ext/tt/macro_rules.rs
index f336098468b5b..732ae2ccb9608 100644
--- a/src/libsyntax/ext/tt/macro_rules.rs
+++ b/src/libsyntax/ext/tt/macro_rules.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use ast::{ident, matcher_, matcher, match_tok, match_nonterminal, match_seq};
+use ast::{Ident, matcher_, matcher, match_tok, match_nonterminal, match_seq};
 use ast::{tt_delim};
 use ast;
 use codemap::{Span, Spanned, dummy_sp};
@@ -25,7 +25,7 @@ use print;
 
 pub fn add_new_extension(cx: @ExtCtxt,
                          sp: Span,
-                         name: ident,
+                         name: Ident,
                          arg: ~[ast::token_tree])
                       -> base::MacResult {
     // these spans won't matter, anyways
@@ -74,7 +74,7 @@ pub fn add_new_extension(cx: @ExtCtxt,
     };
 
     // Given `lhses` and `rhses`, this is the new macro we create
-    fn generic_extension(cx: @ExtCtxt, sp: Span, name: ident,
+    fn generic_extension(cx: @ExtCtxt, sp: Span, name: Ident,
                          arg: &[ast::token_tree],
                          lhses: &[@named_match], rhses: &[@named_match])
     -> MacResult {
diff --git a/src/libsyntax/ext/tt/transcribe.rs b/src/libsyntax/ext/tt/transcribe.rs
index 668805bf7a8e7..8a858f3d9858f 100644
--- a/src/libsyntax/ext/tt/transcribe.rs
+++ b/src/libsyntax/ext/tt/transcribe.rs
@@ -9,7 +9,7 @@
 // except according to those terms.
 
 use ast;
-use ast::{token_tree, tt_delim, tt_tok, tt_seq, tt_nonterminal,ident};
+use ast::{token_tree, tt_delim, tt_tok, tt_seq, tt_nonterminal,Ident};
 use codemap::{Span, dummy_sp};
 use diagnostic::span_handler;
 use ext::tt::macro_parser::{named_match, matched_seq, matched_nonterminal};
@@ -34,7 +34,7 @@ pub struct TtReader {
     // the unzipped tree:
     stack: @mut TtFrame,
     /* for MBE-style macro transcription */
-    interpolations: HashMap<ident, @named_match>,
+    interpolations: HashMap<Ident, @named_match>,
     repeat_idx: ~[uint],
     repeat_len: ~[uint],
     /* cached: */
@@ -46,7 +46,7 @@ pub struct TtReader {
  *  `src` contains no `tt_seq`s and `tt_nonterminal`s, `interp` can (and
  *  should) be none. */
 pub fn new_tt_reader(sp_diag: @mut span_handler,
-                     interp: Option<HashMap<ident,@named_match>>,
+                     interp: Option<HashMap<Ident,@named_match>>,
                      src: ~[ast::token_tree])
                   -> @mut TtReader {
     let r = @mut TtReader {
@@ -113,7 +113,7 @@ fn lookup_cur_matched_by_matched(r: &mut TtReader,
     r.repeat_idx.iter().fold(start, red)
 }
 
-fn lookup_cur_matched(r: &mut TtReader, name: ident) -> @named_match {
+fn lookup_cur_matched(r: &mut TtReader, name: Ident) -> @named_match {
     match r.interpolations.find_copy(&name) {
         Some(s) => lookup_cur_matched_by_matched(r, s),
         None => {
@@ -126,7 +126,7 @@ fn lookup_cur_matched(r: &mut TtReader, name: ident) -> @named_match {
 #[deriving(Clone)]
 enum lis {
     lis_unconstrained,
-    lis_constraint(uint, ident),
+    lis_constraint(uint, Ident),
     lis_contradiction(~str),
 }
 
diff --git a/src/libsyntax/fold.rs b/src/libsyntax/fold.rs
index 98ef4e89027cb..7e3695614ae38 100644
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -32,7 +32,7 @@ pub trait ast_fold {
     fn fold_mod(@self, &_mod) -> _mod;
     fn fold_foreign_mod(@self, &foreign_mod) -> foreign_mod;
     fn fold_variant(@self, &variant) -> variant;
-    fn fold_ident(@self, ident) -> ident;
+    fn fold_ident(@self, Ident) -> Ident;
     fn fold_path(@self, &Path) -> Path;
     fn fold_local(@self, @Local) -> @Local;
     fn map_exprs(@self, @fn(@expr) -> @expr, &[@expr]) -> ~[@expr];
@@ -61,7 +61,7 @@ pub struct AstFoldFns {
     fold_mod: @fn(&_mod, @ast_fold) -> _mod,
     fold_foreign_mod: @fn(&foreign_mod, @ast_fold) -> foreign_mod,
     fold_variant: @fn(&variant_, Span, @ast_fold) -> (variant_, Span),
-    fold_ident: @fn(ident, @ast_fold) -> ident,
+    fold_ident: @fn(Ident, @ast_fold) -> Ident,
     fold_path: @fn(&Path, @ast_fold) -> Path,
     fold_local: @fn(@Local, @ast_fold) -> @Local,
     map_exprs: @fn(@fn(@expr) -> @expr, &[@expr]) -> ~[@expr],
@@ -758,7 +758,7 @@ fn noop_fold_variant(v: &variant_, fld: @ast_fold) -> variant_ {
     }
 }
 
-fn noop_fold_ident(i: ident, _fld: @ast_fold) -> ident {
+fn noop_fold_ident(i: Ident, _fld: @ast_fold) -> Ident {
     i
 }
 
@@ -913,7 +913,7 @@ impl ast_fold for AstFoldFns {
         let (n, s) = (self.fold_variant)(&x.node, x.span, self as @ast_fold);
         Spanned { node: n, span: (self.new_span)(s) }
     }
-    fn fold_ident(@self, x: ident) -> ident {
+    fn fold_ident(@self, x: Ident) -> Ident {
         (self.fold_ident)(x, self as @ast_fold)
     }
     fn fold_path(@self, x: &Path) -> Path {
@@ -961,7 +961,7 @@ mod test {
     // taken from expand
     // given a function from idents to idents, produce
     // an ast_fold that applies that function:
-    pub fn fun_to_ident_folder(f: @fn(ast::ident)->ast::ident) -> @ast_fold{
+    pub fn fun_to_ident_folder(f: @fn(ast::Ident)->ast::Ident) -> @ast_fold{
         let afp = default_ast_fold();
         let f_pre = @AstFoldFns{
             fold_ident : |id, _| f(id),
@@ -976,7 +976,7 @@ mod test {
     }
 
     // change every identifier to "zz"
-    pub fn to_zz() -> @fn(ast::ident)->ast::ident {
+    pub fn to_zz() -> @fn(ast::Ident)->ast::Ident {
         let zz_id = token::str_to_ident("zz");
         |_id| {zz_id}
     }
diff --git a/src/libsyntax/oldvisit.rs b/src/libsyntax/oldvisit.rs
index 1c7e9d6619106..ac3a2d1316fbf 100644
--- a/src/libsyntax/oldvisit.rs
+++ b/src/libsyntax/oldvisit.rs
@@ -34,10 +34,10 @@ pub enum vt<E> { mk_vt(visitor<E>), }
 
 pub enum fn_kind<'self> {
     // fn foo() or extern "Abi" fn foo()
-    fk_item_fn(ident, &'self Generics, purity, AbiSet),
+    fk_item_fn(Ident, &'self Generics, purity, AbiSet),
 
     // fn foo(&self)
-    fk_method(ident, &'self Generics, &'self method),
+    fk_method(Ident, &'self Generics, &'self method),
 
     // @fn(x, y) { ... }
     fk_anon(ast::Sigil),
@@ -46,7 +46,7 @@ pub enum fn_kind<'self> {
     fk_fn_block,
 }
 
-pub fn name_of_fn(fk: &fn_kind) -> ident {
+pub fn name_of_fn(fk: &fn_kind) -> Ident {
     match *fk {
       fk_item_fn(name, _, _, _) | fk_method(name, _, _) => {
           name
@@ -88,7 +88,7 @@ pub struct Visitor<E> {
     visit_fn: @fn(&fn_kind, &fn_decl, &Block, Span, NodeId, (E, vt<E>)),
     visit_ty_method: @fn(&TypeMethod, (E, vt<E>)),
     visit_trait_method: @fn(&trait_method, (E, vt<E>)),
-    visit_struct_def: @fn(@struct_def, ident, &Generics, NodeId, (E, vt<E>)),
+    visit_struct_def: @fn(@struct_def, Ident, &Generics, NodeId, (E, vt<E>)),
     visit_struct_field: @fn(@struct_field, (E, vt<E>)),
 }
 
@@ -422,7 +422,7 @@ pub fn visit_trait_method<E:Clone>(m: &trait_method, (e, v): (E, vt<E>)) {
 
 pub fn visit_struct_def<E:Clone>(
     sd: @struct_def,
-    _nm: ast::ident,
+    _nm: ast::Ident,
     _generics: &Generics,
     _id: NodeId,
     (e, v): (E, vt<E>)
@@ -612,7 +612,7 @@ pub struct SimpleVisitor {
     visit_fn: @fn(&fn_kind, &fn_decl, &Block, Span, NodeId),
     visit_ty_method: @fn(&TypeMethod),
     visit_trait_method: @fn(&trait_method),
-    visit_struct_def: @fn(@struct_def, ident, &Generics, NodeId),
+    visit_struct_def: @fn(@struct_def, Ident, &Generics, NodeId),
     visit_struct_field: @fn(@struct_field),
     visit_struct_method: @fn(@method)
 }
@@ -715,9 +715,9 @@ pub fn mk_simple_visitor(v: simple_visitor) -> vt<()> {
         visit_trait_method(m, (e, v));
     }
     fn v_struct_def(
-        f: @fn(@struct_def, ident, &Generics, NodeId),
+        f: @fn(@struct_def, Ident, &Generics, NodeId),
         sd: @struct_def,
-        nm: ident,
+        nm: Ident,
         generics: &Generics,
         id: NodeId,
         (e, v): ((), vt<()>)
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index ea3437820a180..02af6d23b4415 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -34,7 +34,7 @@ use ast::{expr_vstore_slice, expr_vstore_box};
 use ast::{expr_vstore_mut_slice, expr_while, expr_for_loop, extern_fn, Field, fn_decl};
 use ast::{expr_vstore_uniq, Onceness, Once, Many};
 use ast::{foreign_item, foreign_item_static, foreign_item_fn, foreign_mod};
-use ast::{ident, impure_fn, inherited, item, item_, item_static};
+use ast::{Ident, impure_fn, inherited, item, item_, item_static};
 use ast::{item_enum, item_fn, item_foreign_mod, item_impl};
 use ast::{item_mac, item_mod, item_struct, item_trait, item_ty, lit, lit_};
 use ast::{lit_bool, lit_float, lit_float_unsuffixed, lit_int};
@@ -95,7 +95,7 @@ enum restriction {
 }
 
 type arg_or_capture_item = Either<arg, ()>;
-type item_info = (ident, item_, Option<~[Attribute]>);
+type item_info = (Ident, item_, Option<~[Attribute]>);
 
 /// How to parse a path. There are four different kinds of paths, all of which
 /// are parsed somewhat differently.
@@ -476,7 +476,7 @@ impl Parser {
         self.commit_stmt(s, &[edible], &[])
     }
 
-    pub fn parse_ident(&self) -> ast::ident {
+    pub fn parse_ident(&self) -> ast::Ident {
         self.check_strict_keywords();
         self.check_reserved_keywords();
         match *self.token {
@@ -756,7 +756,7 @@ impl Parser {
     }
     pub fn get_id(&self) -> NodeId { next_node_id(self.sess) }
 
-    pub fn id_to_str(&self, id: ident) -> @str {
+    pub fn id_to_str(&self, id: Ident) -> @str {
         get_ident_interner().get(id.name)
     }
 
@@ -775,7 +775,7 @@ impl Parser {
         }
     }
 
-    pub fn get_lifetime(&self, tok: &token::Token) -> ast::ident {
+    pub fn get_lifetime(&self, tok: &token::Token) -> ast::Ident {
         match *tok {
             token::LIFETIME(ref ident) => *ident,
             _ => self.bug("not a lifetime"),
@@ -1664,7 +1664,7 @@ impl Parser {
 
     pub fn mk_method_call(&self,
                       rcvr: @expr,
-                      ident: ident,
+                      ident: Ident,
                       tps: ~[Ty],
                       args: ~[@expr],
                       sugar: CallSugar) -> ast::expr_ {
@@ -1675,7 +1675,7 @@ impl Parser {
         expr_index(self.get_id(), expr, idx)
     }
 
-    pub fn mk_field(&self, expr: @expr, ident: ident, tys: ~[Ty]) -> ast::expr_ {
+    pub fn mk_field(&self, expr: @expr, ident: Ident, tys: ~[Ty]) -> ast::expr_ {
         expr_field(expr, ident, tys)
     }
 
@@ -2550,7 +2550,7 @@ impl Parser {
         return self.mk_expr(lo, hi, expr_while(cond, body));
     }
 
-    pub fn parse_loop_expr(&self, opt_ident: Option<ast::ident>) -> @expr {
+    pub fn parse_loop_expr(&self, opt_ident: Option<ast::Ident>) -> @expr {
         // loop headers look like 'loop {' or 'loop unsafe {'
         let is_loop_header =
             *self.token == token::LBRACE
@@ -3713,13 +3713,13 @@ impl Parser {
     }
 
     // parse the name and optional generic types of a function header.
-    fn parse_fn_header(&self) -> (ident, ast::Generics) {
+    fn parse_fn_header(&self) -> (Ident, ast::Generics) {
         let id = self.parse_ident();
         let generics = self.parse_generics();
         (id, generics)
     }
 
-    fn mk_item(&self, lo: BytePos, hi: BytePos, ident: ident,
+    fn mk_item(&self, lo: BytePos, hi: BytePos, ident: Ident,
                node: item_, vis: visibility,
                attrs: ~[Attribute]) -> @item {
         @ast::item { ident: ident,
@@ -4107,7 +4107,7 @@ impl Parser {
         }
     }
 
-    fn push_mod_path(&self, id: ident, attrs: &[Attribute]) {
+    fn push_mod_path(&self, id: Ident, attrs: &[Attribute]) {
         let default_path = token::interner_get(id.name);
         let file_path = match ::attr::first_attr_value_str_by_name(attrs,
                                                                    "path") {
@@ -4123,7 +4123,7 @@ impl Parser {
 
     // read a module from a source file.
     fn eval_src_mod(&self,
-                    id: ast::ident,
+                    id: ast::Ident,
                     outer_attrs: &[ast::Attribute],
                     id_sp: Span)
                     -> (ast::item_, ~[ast::Attribute]) {
diff --git a/src/libsyntax/parse/token.rs b/src/libsyntax/parse/token.rs
index 8128a4e905c16..3d47b1141ddd0 100644
--- a/src/libsyntax/parse/token.rs
+++ b/src/libsyntax/parse/token.rs
@@ -76,22 +76,22 @@ pub enum Token {
     LIT_INT(i64, ast::int_ty),
     LIT_UINT(u64, ast::uint_ty),
     LIT_INT_UNSUFFIXED(i64),
-    LIT_FLOAT(ast::ident, ast::float_ty),
-    LIT_FLOAT_UNSUFFIXED(ast::ident),
-    LIT_STR(ast::ident),
+    LIT_FLOAT(ast::Ident, ast::float_ty),
+    LIT_FLOAT_UNSUFFIXED(ast::Ident),
+    LIT_STR(ast::Ident),
 
     /* Name components */
     // an identifier contains an "is_mod_name" boolean,
     // indicating whether :: follows this token with no
     // whitespace in between.
-    IDENT(ast::ident, bool),
+    IDENT(ast::Ident, bool),
     UNDERSCORE,
-    LIFETIME(ast::ident),
+    LIFETIME(ast::Ident),
 
     /* For interpolation */
     INTERPOLATED(nonterminal),
 
-    DOC_COMMENT(ast::ident),
+    DOC_COMMENT(ast::Ident),
     EOF,
 }
 
@@ -104,7 +104,7 @@ pub enum nonterminal {
     nt_pat( @ast::pat),
     nt_expr(@ast::expr),
     nt_ty(  ~ast::Ty),
-    nt_ident(~ast::ident, bool),
+    nt_ident(~ast::Ident, bool),
     nt_attr(@ast::Attribute),   // #[foo]
     nt_path(~ast::Path),
     nt_tt(  @ast::token_tree), //needs @ed to break a circularity
@@ -307,46 +307,46 @@ pub fn is_bar(t: &Token) -> bool {
 
 
 pub mod special_idents {
-    use ast::ident;
+    use ast::Ident;
 
-    pub static underscore : ident = ident { name: 0, ctxt: 0};
-    pub static anon : ident = ident { name: 1, ctxt: 0};
-    pub static invalid : ident = ident { name: 2, ctxt: 0}; // ''
-    pub static unary : ident = ident { name: 3, ctxt: 0};
-    pub static not_fn : ident = ident { name: 4, ctxt: 0};
-    pub static idx_fn : ident = ident { name: 5, ctxt: 0};
-    pub static unary_minus_fn : ident = ident { name: 6, ctxt: 0};
-    pub static clownshoes_extensions : ident = ident { name: 7, ctxt: 0};
+    pub static underscore : Ident = Ident { name: 0, ctxt: 0};
+    pub static anon : Ident = Ident { name: 1, ctxt: 0};
+    pub static invalid : Ident = Ident { name: 2, ctxt: 0}; // ''
+    pub static unary : Ident = Ident { name: 3, ctxt: 0};
+    pub static not_fn : Ident = Ident { name: 4, ctxt: 0};
+    pub static idx_fn : Ident = Ident { name: 5, ctxt: 0};
+    pub static unary_minus_fn : Ident = Ident { name: 6, ctxt: 0};
+    pub static clownshoes_extensions : Ident = Ident { name: 7, ctxt: 0};
 
-    pub static self_ : ident = ident { name: 8, ctxt: 0}; // 'self'
+    pub static self_ : Ident = Ident { name: 8, ctxt: 0}; // 'self'
 
     /* for matcher NTs */
-    pub static item : ident = ident { name: 9, ctxt: 0};
-    pub static block : ident = ident { name: 10, ctxt: 0};
-    pub static stmt : ident = ident { name: 11, ctxt: 0};
-    pub static pat : ident = ident { name: 12, ctxt: 0};
-    pub static expr : ident = ident { name: 13, ctxt: 0};
-    pub static ty : ident = ident { name: 14, ctxt: 0};
-    pub static ident : ident = ident { name: 15, ctxt: 0};
-    pub static path : ident = ident { name: 16, ctxt: 0};
-    pub static tt : ident = ident { name: 17, ctxt: 0};
-    pub static matchers : ident = ident { name: 18, ctxt: 0};
-
-    pub static str : ident = ident { name: 19, ctxt: 0}; // for the type
+    pub static item : Ident = Ident { name: 9, ctxt: 0};
+    pub static block : Ident = Ident { name: 10, ctxt: 0};
+    pub static stmt : Ident = Ident { name: 11, ctxt: 0};
+    pub static pat : Ident = Ident { name: 12, ctxt: 0};
+    pub static expr : Ident = Ident { name: 13, ctxt: 0};
+    pub static ty : Ident = Ident { name: 14, ctxt: 0};
+    pub static ident : Ident = Ident { name: 15, ctxt: 0};
+    pub static path : Ident = Ident { name: 16, ctxt: 0};
+    pub static tt : Ident = Ident { name: 17, ctxt: 0};
+    pub static matchers : Ident = Ident { name: 18, ctxt: 0};
+
+    pub static str : Ident = Ident { name: 19, ctxt: 0}; // for the type
 
     /* outside of libsyntax */
-    pub static arg : ident = ident { name: 20, ctxt: 0};
-    pub static descrim : ident = ident { name: 21, ctxt: 0};
-    pub static clownshoe_abi : ident = ident { name: 22, ctxt: 0};
-    pub static clownshoe_stack_shim : ident = ident { name: 23, ctxt: 0};
-    pub static main : ident = ident { name: 24, ctxt: 0};
-    pub static opaque : ident = ident { name: 25, ctxt: 0};
-    pub static blk : ident = ident { name: 26, ctxt: 0};
-    pub static statik : ident = ident { name: 27, ctxt: 0};
-    pub static clownshoes_foreign_mod: ident = ident { name: 28, ctxt: 0};
-    pub static unnamed_field: ident = ident { name: 29, ctxt: 0};
-    pub static c_abi: ident = ident { name: 30, ctxt: 0};
-    pub static type_self: ident = ident { name: 31, ctxt: 0};    // `Self`
+    pub static arg : Ident = Ident { name: 20, ctxt: 0};
+    pub static descrim : Ident = Ident { name: 21, ctxt: 0};
+    pub static clownshoe_abi : Ident = Ident { name: 22, ctxt: 0};
+    pub static clownshoe_stack_shim : Ident = Ident { name: 23, ctxt: 0};
+    pub static main : Ident = Ident { name: 24, ctxt: 0};
+    pub static opaque : Ident = Ident { name: 25, ctxt: 0};
+    pub static blk : Ident = Ident { name: 26, ctxt: 0};
+    pub static statik : Ident = Ident { name: 27, ctxt: 0};
+    pub static clownshoes_foreign_mod: Ident = Ident { name: 28, ctxt: 0};
+    pub static unnamed_field: Ident = Ident { name: 29, ctxt: 0};
+    pub static c_abi: Ident = Ident { name: 30, ctxt: 0};
+    pub static type_self: Ident = Ident { name: 31, ctxt: 0};    // `Self`
 }
 
 /**
@@ -525,18 +525,18 @@ pub fn interner_get(name : Name) -> @str {
 }
 
 // maps an identifier to the string that it corresponds to
-pub fn ident_to_str(id : &ast::ident) -> @str {
+pub fn ident_to_str(id : &ast::Ident) -> @str {
     interner_get(id.name)
 }
 
 // maps a string to an identifier with an empty syntax context
-pub fn str_to_ident(str : &str) -> ast::ident {
-    ast::new_ident(intern(str))
+pub fn str_to_ident(str : &str) -> ast::Ident {
+    ast::Ident::new(intern(str))
 }
 
 // maps a string to a gensym'ed identifier
-pub fn gensym_ident(str : &str) -> ast::ident {
-    ast::new_ident(gensym(str))
+pub fn gensym_ident(str : &str) -> ast::Ident {
+    ast::Ident::new(gensym(str))
 }
 
 
@@ -561,7 +561,7 @@ pub fn fresh_name(src_name : &str) -> Name {
  * the language and may not appear as identifiers.
  */
 pub mod keywords {
-    use ast::ident;
+    use ast::Ident;
 
     pub enum Keyword {
         // Strict keywords
@@ -608,46 +608,46 @@ pub mod keywords {
     }
 
     impl Keyword {
-        pub fn to_ident(&self) -> ident {
+        pub fn to_ident(&self) -> Ident {
             match *self {
-                As => ident { name: 32, ctxt: 0 },
-                Break => ident { name: 33, ctxt: 0 },
-                Const => ident { name: 34, ctxt: 0 },
-                Do => ident { name: 35, ctxt: 0 },
-                Else => ident { name: 36, ctxt: 0 },
-                Enum => ident { name: 37, ctxt: 0 },
-                Extern => ident { name: 38, ctxt: 0 },
-                False => ident { name: 39, ctxt: 0 },
-                Fn => ident { name: 40, ctxt: 0 },
-                For => ident { name: 41, ctxt: 0 },
-                If => ident { name: 42, ctxt: 0 },
-                Impl => ident { name: 43, ctxt: 0 },
-                In => ident { name: 63, ctxt: 0 },
-                Let => ident { name: 44, ctxt: 0 },
-                __Log => ident { name: 45, ctxt: 0 },
-                Loop => ident { name: 46, ctxt: 0 },
-                Match => ident { name: 47, ctxt: 0 },
-                Mod => ident { name: 48, ctxt: 0 },
-                Mut => ident { name: 49, ctxt: 0 },
-                Once => ident { name: 50, ctxt: 0 },
-                Priv => ident { name: 51, ctxt: 0 },
-                Pub => ident { name: 52, ctxt: 0 },
-                Ref => ident { name: 53, ctxt: 0 },
-                Return => ident { name: 54, ctxt: 0 },
-                Static => ident { name: 27, ctxt: 0 },
-                Self => ident { name: 8, ctxt: 0 },
-                Struct => ident { name: 55, ctxt: 0 },
-                Super => ident { name: 56, ctxt: 0 },
-                True => ident { name: 57, ctxt: 0 },
-                Trait => ident { name: 58, ctxt: 0 },
-                Type => ident { name: 59, ctxt: 0 },
-                Typeof => ident { name: 67, ctxt: 0 },
-                Unsafe => ident { name: 60, ctxt: 0 },
-                Use => ident { name: 61, ctxt: 0 },
-                While => ident { name: 62, ctxt: 0 },
-                Be => ident { name: 64, ctxt: 0 },
-                Pure => ident { name: 65, ctxt: 0 },
-                Yield => ident { name: 66, ctxt: 0 },
+                As => Ident { name: 32, ctxt: 0 },
+                Break => Ident { name: 33, ctxt: 0 },
+                Const => Ident { name: 34, ctxt: 0 },
+                Do => Ident { name: 35, ctxt: 0 },
+                Else => Ident { name: 36, ctxt: 0 },
+                Enum => Ident { name: 37, ctxt: 0 },
+                Extern => Ident { name: 38, ctxt: 0 },
+                False => Ident { name: 39, ctxt: 0 },
+                Fn => Ident { name: 40, ctxt: 0 },
+                For => Ident { name: 41, ctxt: 0 },
+                If => Ident { name: 42, ctxt: 0 },
+                Impl => Ident { name: 43, ctxt: 0 },
+                In => Ident { name: 63, ctxt: 0 },
+                Let => Ident { name: 44, ctxt: 0 },
+                __Log => Ident { name: 45, ctxt: 0 },
+                Loop => Ident { name: 46, ctxt: 0 },
+                Match => Ident { name: 47, ctxt: 0 },
+                Mod => Ident { name: 48, ctxt: 0 },
+                Mut => Ident { name: 49, ctxt: 0 },
+                Once => Ident { name: 50, ctxt: 0 },
+                Priv => Ident { name: 51, ctxt: 0 },
+                Pub => Ident { name: 52, ctxt: 0 },
+                Ref => Ident { name: 53, ctxt: 0 },
+                Return => Ident { name: 54, ctxt: 0 },
+                Static => Ident { name: 27, ctxt: 0 },
+                Self => Ident { name: 8, ctxt: 0 },
+                Struct => Ident { name: 55, ctxt: 0 },
+                Super => Ident { name: 56, ctxt: 0 },
+                True => Ident { name: 57, ctxt: 0 },
+                Trait => Ident { name: 58, ctxt: 0 },
+                Type => Ident { name: 59, ctxt: 0 },
+                Typeof => Ident { name: 67, ctxt: 0 },
+                Unsafe => Ident { name: 60, ctxt: 0 },
+                Use => Ident { name: 61, ctxt: 0 },
+                While => Ident { name: 62, ctxt: 0 },
+                Be => Ident { name: 64, ctxt: 0 },
+                Pure => Ident { name: 65, ctxt: 0 },
+                Yield => Ident { name: 66, ctxt: 0 },
             }
         }
     }
diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index 599092f4b1492..c03bcca7bf9e8 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -185,7 +185,7 @@ pub fn path_to_str(p: &ast::Path, intr: @ident_interner) -> ~str {
     to_str(p, |a,b| print_path(a, b, false), intr)
 }
 
-pub fn fun_to_str(decl: &ast::fn_decl, purity: ast::purity, name: ast::ident,
+pub fn fun_to_str(decl: &ast::fn_decl, purity: ast::purity, name: ast::Ident,
                   opt_explicit_self: Option<ast::explicit_self_>,
                   generics: &ast::Generics, intr: @ident_interner) -> ~str {
     do io::with_str_writer |wr| {
@@ -639,7 +639,7 @@ fn print_trait_ref(s: @ps, t: &ast::trait_ref) {
 }
 
 pub fn print_enum_def(s: @ps, enum_definition: &ast::enum_def,
-                      generics: &ast::Generics, ident: ast::ident,
+                      generics: &ast::Generics, ident: ast::Ident,
                       span: codemap::Span, visibility: ast::visibility) {
     head(s, visibility_qualified(visibility, "enum"));
     print_ident(s, ident);
@@ -691,7 +691,7 @@ pub fn print_visibility(s: @ps, vis: ast::visibility) {
 pub fn print_struct(s: @ps,
                     struct_def: &ast::struct_def,
                     generics: &ast::Generics,
-                    ident: ast::ident,
+                    ident: ast::Ident,
                     span: codemap::Span) {
     print_ident(s, ident);
     print_generics(s, generics);
@@ -1495,7 +1495,7 @@ pub fn print_decl(s: @ps, decl: &ast::decl) {
     }
 }
 
-pub fn print_ident(s: @ps, ident: ast::ident) {
+pub fn print_ident(s: @ps, ident: ast::Ident) {
     word(s.s, ident_to_str(&ident));
 }
 
@@ -1698,7 +1698,7 @@ pub fn print_fn(s: @ps,
                 decl: &ast::fn_decl,
                 purity: Option<ast::purity>,
                 abis: AbiSet,
-                name: ast::ident,
+                name: ast::Ident,
                 generics: &ast::Generics,
                 opt_explicit_self: Option<ast::explicit_self_>,
                 vis: ast::visibility) {
@@ -1946,7 +1946,7 @@ pub fn print_ty_fn(s: @ps,
                    purity: ast::purity,
                    onceness: ast::Onceness,
                    decl: &ast::fn_decl,
-                   id: Option<ast::ident>,
+                   id: Option<ast::Ident>,
                    opt_bounds: &Option<OptVec<ast::TyParamBound>>,
                    generics: Option<&ast::Generics>,
                    opt_explicit_self: Option<ast::explicit_self_>) {
diff --git a/src/libsyntax/util/parser_testing.rs b/src/libsyntax/util/parser_testing.rs
index 9d286f1759eff..a421d44e2e36d 100644
--- a/src/libsyntax/util/parser_testing.rs
+++ b/src/libsyntax/util/parser_testing.rs
@@ -82,7 +82,7 @@ pub fn string_to_pat(source_str : @str) -> @ast::pat {
 }
 
 // convert a vector of strings to a vector of ast::idents
-pub fn strs_to_idents(ids: ~[&str]) -> ~[ast::ident] {
+pub fn strs_to_idents(ids: ~[&str]) -> ~[ast::Ident] {
     ids.map(|u| token::str_to_ident(*u))
 }
 
diff --git a/src/libsyntax/visit.rs b/src/libsyntax/visit.rs
index 0656ed1372d7b..6ccaece27b981 100644
--- a/src/libsyntax/visit.rs
+++ b/src/libsyntax/visit.rs
@@ -30,10 +30,10 @@ use opt_vec::OptVec;
 
 pub enum fn_kind<'self> {
     // fn foo() or extern "Abi" fn foo()
-    fk_item_fn(ident, &'self Generics, purity, AbiSet),
+    fk_item_fn(Ident, &'self Generics, purity, AbiSet),
 
     // fn foo(&self)
-    fk_method(ident, &'self Generics, &'self method),
+    fk_method(Ident, &'self Generics, &'self method),
 
     // @fn(x, y) { ... }
     fk_anon(ast::Sigil),
@@ -42,7 +42,7 @@ pub enum fn_kind<'self> {
     fk_fn_block,
 }
 
-pub fn name_of_fn(fk: &fn_kind) -> ident {
+pub fn name_of_fn(fk: &fn_kind) -> Ident {
     match *fk {
       fk_item_fn(name, _, _, _) | fk_method(name, _, _) => {
           name
@@ -86,7 +86,7 @@ pub trait Visitor<E:Clone> {
     }
     fn visit_ty_method(&mut self, t:&TypeMethod, e:E) { walk_ty_method(self, t, e) }
     fn visit_trait_method(&mut self, t:&trait_method, e:E) { walk_trait_method(self, t, e) }
-    fn visit_struct_def(&mut self, s:@struct_def, i:ident, g:&Generics, n:NodeId, e:E) {
+    fn visit_struct_def(&mut self, s:@struct_def, i:Ident, g:&Generics, n:NodeId, e:E) {
         walk_struct_def(self, s, i, g, n, e)
     }
     fn visit_struct_field(&mut self, s:@struct_field, e:E) { walk_struct_field(self, s, e) }
@@ -144,7 +144,7 @@ impl<E:Clone> Visitor<E> for @mut Visitor<E> {
     fn visit_trait_method(&mut self, a:&trait_method, e:E) {
         (*self).visit_trait_method(a, e)
     }
-    fn visit_struct_def(&mut self, a:@struct_def, b:ident, c:&Generics, d:NodeId, e:E) {
+    fn visit_struct_def(&mut self, a:@struct_def, b:Ident, c:&Generics, d:NodeId, e:E) {
         (*self).visit_struct_def(a, b, c, d, e)
     }
     fn visit_struct_field(&mut self, a:@struct_field, e:E) {
@@ -476,7 +476,7 @@ pub fn walk_trait_method<E:Clone, V:Visitor<E>>(visitor: &mut V,
 
 pub fn walk_struct_def<E:Clone, V:Visitor<E>>(visitor: &mut V,
                                  struct_definition: @struct_def,
-                                 _: ast::ident,
+                                 _: ast::Ident,
                                  _: &Generics,
                                  _: NodeId,
                                  env: E) {
@@ -693,7 +693,7 @@ pub trait SimpleVisitor {
     fn visit_fn(&mut self, &fn_kind, &fn_decl, &Block, Span, NodeId);
     fn visit_ty_method(&mut self, &TypeMethod);
     fn visit_trait_method(&mut self, &trait_method);
-    fn visit_struct_def(&mut self, @struct_def, ident, &Generics, NodeId);
+    fn visit_struct_def(&mut self, @struct_def, Ident, &Generics, NodeId);
     fn visit_struct_field(&mut self, @struct_field);
     fn visit_struct_method(&mut self, @method);
 }
@@ -792,7 +792,7 @@ impl Visitor<()> for SimpleVisitorVisitor {
     }
     fn visit_struct_def(&mut self,
                         struct_definition: @struct_def,
-                        identifier: ident,
+                        identifier: Ident,
                         generics: &Generics,
                         node_id: NodeId,
                         env: ()) {