Refactor ast.local to make room for initialization via recv

2 files changed, 13 insertions, 4 deletions

diff --git a/src/comp/front/ast.rs b/src/comp/front/ast.rs
index 349f887a..0d70c993 100644
--- a/src/comp/front/ast.rs
+++ b/src/comp/front/ast.rs
@@ -194,10 +194,18 @@ tag stmt_ {
     stmt_crate_directive(@crate_directive);
 }
 
+tag init_op {
+    init_assign;
+    init_recv;
+}
+
+type initializer = rec(init_op op,
+                       @expr expr);
+
 type local = rec(option.t[@ty] ty,
                  bool infer,
                  ident ident,
-                 option.t[@expr] init,
+                 option.t[initializer] init,
                  def_id id,
                  ann ann);
 
diff --git a/src/comp/front/parser.rs b/src/comp/front/parser.rs
index 063bc0e1..23b4a936 100644
--- a/src/comp/front/parser.rs
+++ b/src/comp/front/parser.rs
@@ -1364,13 +1364,14 @@ impure fn parse_expr_inner(parser p) -> @ast.expr {
     }
 }
 
-impure fn parse_initializer(parser p) -> option.t[@ast.expr] {
+impure fn parse_initializer(parser p) -> option.t[ast.initializer] {
     if (p.peek() == token.EQ) {
         p.bump();
-        ret some(parse_expr(p));
+        ret some(rec(op = ast.init_assign,
+                     expr = parse_expr(p)));
     }
 
-    ret none[@ast.expr];
+    ret none[ast.initializer];
 }
 
 impure fn parse_pat(parser p) -> @ast.pat {