syntax: move MethMac to MacImplItem and combine {Provided,Required}Method into MethodTraitItem.

src/libsyntax/ast_map/blocks.rs

@@ -28,7 +28,6 @@ use ast::{Block, FnDecl, NodeId};
 use ast;
 use ast_map::{Node};
 use ast_map;
-use ast_util::PostExpansionMethod;
 use codemap::Span;
 use visit;
 
@@ -65,7 +64,7 @@ impl MaybeFnLike for ast::Item {
 
 impl MaybeFnLike for ast::TraitItem {
     fn is_fn_like(&self) -> bool {
-        match self.node { ast::ProvidedMethod(_) => true, _ => false, }
+        match self.node { ast::MethodTraitItem(_, Some(_)) => true, _ => false, }
     }
 }
 
@@ -156,25 +155,25 @@ impl<'a> FnLikeNode<'a> {
 
     pub fn body(self) -> &'a Block {
         self.handle(|i: ItemFnParts<'a>|  &*i.body,
-                    |_, _, m: &'a ast::Method, _|  m.pe_body(),
+                    |_, _, _: &'a ast::MethodSig, body: &'a ast::Block, _|  body,
                     |c: ClosureParts<'a>| c.body)
     }
 
     pub fn decl(self) -> &'a FnDecl {
         self.handle(|i: ItemFnParts<'a>|  &*i.decl,
-                    |_, _, m: &'a ast::Method, _|  &m.pe_sig().decl,
+                    |_, _, sig: &'a ast::MethodSig, _, _|  &sig.decl,
                     |c: ClosureParts<'a>| c.decl)
     }
 
     pub fn span(self) -> Span {
         self.handle(|i: ItemFnParts|     i.span,
-                    |_, _, _: &'a ast::Method, span| span,
+                    |_, _, _: &'a ast::MethodSig, _, span| span,
                     |c: ClosureParts|    c.span)
     }
 
     pub fn id(self) -> NodeId {
         self.handle(|i: ItemFnParts|     i.id,
-                    |id, _, _: &'a ast::Method, _| id,
+                    |id, _, _: &'a ast::MethodSig, _, _| id,
                     |c: ClosureParts|    c.id)
     }
 
@@ -185,15 +184,15 @@ impl<'a> FnLikeNode<'a> {
         let closure = |_: ClosureParts| {
             visit::FkFnBlock
         };
-        let method = |_, ident, m: &'a ast::Method, _| {
-            visit::FkMethod(ident, m)
+        let method = |_, ident, sig: &'a ast::MethodSig, _, _| {
+            visit::FkMethod(ident, sig)
         };
         self.handle(item, method, closure)
     }
 
     fn handle<A, I, M, C>(self, item_fn: I, method: M, closure: C) -> A where
         I: FnOnce(ItemFnParts<'a>) -> A,
-        M: FnOnce(NodeId, ast::Ident, &'a ast::Method, Span) -> A,
+        M: FnOnce(NodeId, ast::Ident, &'a ast::MethodSig, &'a ast::Block, Span) -> A,
         C: FnOnce(ClosureParts<'a>) -> A,
     {
         match self.node {
@@ -206,13 +205,18 @@ impl<'a> FnLikeNode<'a> {
                 _ => panic!("item FnLikeNode that is not fn-like"),
             },
             ast_map::NodeTraitItem(ti) => match ti.node {
-                ast::ProvidedMethod(ref m) => method(ti.id, ti.ident, m, ti.span),
+                ast::MethodTraitItem(ref sig, Some(ref body)) => {
+                    method(ti.id, ti.ident, sig, body, ti.span)
+                }
                 _ => panic!("trait method FnLikeNode that is not fn-like"),
             },
             ast_map::NodeImplItem(ii) => {
                 match ii.node {
-                    ast::MethodImplItem(ref m) => method(ii.id, ii.ident, m, ii.span),
-                    ast::TypeImplItem(_) => {
+                    ast::MethodImplItem(ref sig, ref body) => {
+                        method(ii.id, ii.ident, sig, body, ii.span)
+                    }
+                    ast::TypeImplItem(_) |
+                    ast::MacImplItem(_) => {
                         panic!("impl method FnLikeNode that is not fn-like")
                     }
                 }

src/libsyntax/ast_map/mod.rs

@@ -929,16 +929,10 @@ fn node_id_to_string(map: &Map, id: NodeId, include_id: bool) -> String {
         }
         Some(NodeImplItem(ii)) => {
             match ii.node {
-                MethodImplItem(ref m) => {
-                    match *m {
-                        MethDecl(..) =>
-                            format!("method {} in {}{}",
-                                    token::get_ident(ii.ident),
-                                    map.path_to_string(id), id_str),
-                        MethMac(ref mac) =>
-                            format!("method macro {}{}",
-                                    pprust::mac_to_string(mac), id_str)
-                    }
+                MethodImplItem(..) => {
+                    format!("method {} in {}{}",
+                            token::get_ident(ii.ident),
+                            map.path_to_string(id), id_str)
                 }
                 TypeImplItem(_) => {
                     format!("assoc type {} in {}{}",
@@ -946,13 +940,17 @@ fn node_id_to_string(map: &Map, id: NodeId, include_id: bool) -> String {
                             map.path_to_string(id),
                             id_str)
                 }
+                MacImplItem(ref mac) => {
+                    format!("method macro {}{}",
+                            pprust::mac_to_string(mac), id_str)
+                }
             }
         }
         Some(NodeTraitItem(ti)) => {
             let kind = match ti.node {
-                RequiredMethod(_) => "required method",
-                ProvidedMethod(_) => "provided method",
+                MethodTraitItem(..) => "trait method",
                 TypeTraitItem(..) => "assoc type",
+//                 ConstTraitItem(..) => "assoc constant"
             };
 
             format!("{} {} in {}{}",