--- a/trunk/src/dil/ast/Declarations.d	Sun Jan 27 20:51:19 2008 +0100
+++ b/trunk/src/dil/ast/Declarations.d	Mon Jan 28 18:48:02 2008 +0100
@@ -616,9 +616,12 @@
 
 class MixinDeclaration : Declaration
 {
+  /// IdExpression := IdentifierExpression | TemplateInstanceExpression
+  /// MixinTemplate := IdExpression ("." IdExpression)*
   Expression templateExpr;
-  Identifier* mixinIdent;
-  Expression argument; // mixin ( AssignExpression )
+  Identifier* mixinIdent; /// Optional mixin identifier.
+  Expression argument; /// "mixin" "(" AssignExpression ")"
+  Declaration decls; /// Initialized in the semantic phase.
 
   this(Expression templateExpr, Identifier* mixinIdent)
   {
@@ -636,4 +639,9 @@
 
     this.argument = argument;
   }
+
+  bool isMixinExpression()
+  {
+    return argument !is null;
+  }
 }