Support foreign 'static mut' variables as well

5 files changed, 11 insertions, 7 deletions

diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
index 012a1e76228..c7f3b41475f 100644
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -1124,7 +1124,7 @@ pub struct foreign_item {
 #[deriving(Eq, Encodable, Decodable)]
 pub enum foreign_item_ {
     foreign_item_fn(fn_decl, purity, Generics),
-    foreign_item_const(@Ty)
+    foreign_item_static(@Ty, /* is_mutbl */ bool),
 }
 
 // The data we save and restore about an inlined item or method.  This is not
diff --git a/src/libsyntax/fold.rs b/src/libsyntax/fold.rs
index 8a22dbe9178..25839fb4633 100644
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -236,8 +236,8 @@ fn noop_fold_foreign_item(ni: @foreign_item, fld: @ast_fold)
                         purity,
                         fold_generics(generics, fld))
                 }
-                foreign_item_const(t) => {
-                    foreign_item_const(fld.fold_ty(t))
+                foreign_item_static(t, m) => {
+                    foreign_item_static(fld.fold_ty(t), m)
                 }
             },
         id: fld.new_id(ni.id),
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index a726b3b27d2..cc4a1f45722 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -33,7 +33,7 @@ use ast::{expr_vec, expr_vstore, expr_vstore_mut_box};
 use ast::{expr_vstore_slice, expr_vstore_box};
 use ast::{expr_vstore_mut_slice, expr_while, extern_fn, field, fn_decl};
 use ast::{expr_vstore_uniq, Onceness, Once, Many};
-use ast::{foreign_item, foreign_item_const, foreign_item_fn, foreign_mod};
+use ast::{foreign_item, foreign_item_static, foreign_item_fn, foreign_mod};
 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_};
@@ -3684,6 +3684,7 @@ impl Parser {
         } else {
             self.expect_keyword(keywords::Static);
         }
+        let mutbl = self.eat_keyword(keywords::Mut);
 
         let ident = self.parse_ident();
         self.expect(&token::COLON);
@@ -3692,7 +3693,7 @@ impl Parser {
         self.expect(&token::SEMI);
         @ast::foreign_item { ident: ident,
                              attrs: attrs,
-                             node: foreign_item_const(ty),
+                             node: foreign_item_static(ty, mutbl),
                              id: self.get_id(),
                              span: mk_sp(lo, hi),
                              vis: vis }
diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index c21c0a0afee..1a3155337a5 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -458,8 +458,11 @@ pub fn print_foreign_item(s: @ps, item: @ast::foreign_item) {
         word(s.s, ";");
         end(s); // end the outer fn box
       }
-      ast::foreign_item_const(t) => {
+      ast::foreign_item_static(t, m) => {
         head(s, "static");
+        if m {
+            word_space(s, "mut");
+        }
         print_ident(s, item.ident);
         word_space(s, ":");
         print_type(s, t);
diff --git a/src/libsyntax/visit.rs b/src/libsyntax/visit.rs
index fd9350e0005..d7914832835 100644
--- a/src/libsyntax/visit.rs
+++ b/src/libsyntax/visit.rs
@@ -326,7 +326,7 @@ pub fn visit_foreign_item<E: Copy>(ni: @foreign_item, (e, v): (E, vt<E>)) {
             visit_fn_decl(fd, (copy e, v));
             (v.visit_generics)(generics, (e, v));
         }
-        foreign_item_const(t) => {
+        foreign_item_static(t, _) => {
             (v.visit_ty)(t, (e, v));
         }
     }