public static void Refly()
        {
            // creating the Refly.Demo namespace
            NamespaceDeclaration demo = new NamespaceDeclaration("Refly.Demo");

            // create the user class
            ClassDeclaration user = demo.AddClass("User");

            // add name field
            FieldDeclaration name = user.AddField(typeof(string), "name");

            // add constructor
            ConstructorDeclaration cstr = user.AddConstructor();
            // add name parameter
            ParameterDeclaration pname = cstr.Signature.Parameters.Add(typeof(string), "name",true);

            // this.name = name;
            cstr.Body.AddAssign(
                Expr.This.Field(name),
                Expr.Arg(pname)
                );

            // add property
            user.AddProperty(name, true, false, false);
        }
        public ClassDeclaration AddClass(NamespaceDeclaration ns)
        {
            ClassDeclaration col = ns.AddClass(this.CollectionName);

            // set base class as CollectionBase
            col.Parent = new TypeTypeDeclaration(typeof(CollectionBase));

            // default constructor
            col.AddConstructor();

            // add indexer
            if (this.ItemGet || this.ItemSet)
            {
                IndexerDeclaration index = col.AddIndexer(
                    this.Type
                    );
                ParameterDeclaration pindex = index.Signature.Parameters.Add(typeof(int),"index",false);

                // get body
                if (this.ItemGet)
                {
                    index.Get.Return(
                        (Expr.This.Prop("List").Item(Expr.Arg(pindex)).Cast(this.Type)
                        )
                        );
                }
                // set body
                if (this.ItemSet)
                {
                    index.Set.Add(
                        Stm.Assign(
                        Expr.This.Prop("List").Item(Expr.Arg(pindex)),
                        Expr.Value
                        )
                        );
                }

            }

            string pname = ns.Conformer.ToCamel(this.Type.Name);
            // add method
            if (this.Add)
            {
                MethodDeclaration add = col.AddMethod("Add");
                ParameterDeclaration para = add.Signature.Parameters.Add(this.Type,pname,true);
                add.Body.Add(
                    Expr.This.Prop("List").Method("Add").Invoke(para)
                    );
            }

            if (this.AddRange)
            {
                MethodDeclaration add = col.AddMethod("AddRange");
                ParameterDeclaration para = add.Signature.Parameters.Add(col,pname,true);

                ForEachStatement fe = Stm.ForEach(
                    this.Type,
                    "item",
                    Expr.Arg(para),
                    false
                    );
                fe.Body.Add(
                    Expr.This.Prop("List").Method("Add").Invoke( fe.Local)
                    );

                add.Body.Add(fe);
            }

            // contains method
            if (this.Contains)
            {
                MethodDeclaration contains = col.AddMethod("Contains");
                contains.Signature.ReturnType = new TypeTypeDeclaration(typeof(bool));
                ParameterDeclaration para = contains.Signature.Parameters.Add(this.Type,pname,true);
                contains.Body.Return(
                    Expr.This.Prop("List").Method("Contains").Invoke(para)
                    );
            }

            // remove method
            if (this.Remove)
            {
                MethodDeclaration remove = col.AddMethod("Remove");
                ParameterDeclaration para = remove.Signature.Parameters.Add(this.Type,pname,true);

                remove.Doc.Summary.AddText("Removes the first occurrence of a specific ParameterDeclaration from this ParameterDeclarationCollection.");

                remove.Body.Add(
                    Expr.This.Prop("List").Method("Remove").Invoke(para)
                    );
            }

            // insert
            if (this.Insert)
            {
                MethodDeclaration insert = col.AddMethod("Insert");
                ParameterDeclaration index = insert.Signature.Parameters.Add(typeof(int),"index",true);
                ParameterDeclaration para = insert.Signature.Parameters.Add(this.Type,pname,true);
                insert.Body.Add(
                    Expr.This.Prop("List").Method("Insert").Invoke(index,para)
                    );
            }

            // indexof
            if (this.IndexOf)
            {
                MethodDeclaration indexof = col.AddMethod("IndexOf");
                ParameterDeclaration para = indexof.Signature.Parameters.Add(this.Type,pname,true);
                indexof.Signature.ReturnType = new TypeTypeDeclaration(typeof(int));
                indexof.Body.Return(
                    Expr.This.Prop("List").Method("IndexOf").Invoke(para)
                    );
            }

            if (this.Enumerator)
            {
                // create subclass
                ClassDeclaration en = col.AddClass("Enumerator");
                // add wrapped field
                FieldDeclaration wrapped = en.AddField(
                    typeof(IEnumerator),"wrapped"
                    );
                // add IEnumerator
                en.Interfaces.Add(typeof(IEnumerator));

                // add constructor
                ConstructorDeclaration cs = en.AddConstructor();
                ParameterDeclaration collection = cs.Signature.Parameters.Add(col,"collection",true);
                cs.Body.Add(
                    Stm.Assign(
                        Expr.This.Field(wrapped),
                        Expr.Arg(collection).Cast(typeof(CollectionBase)).Method("GetEnumerator").Invoke()
                        )
                    );

                // add current
                PropertyDeclaration current = en.AddProperty(this.Type,"Current");
                current.Get.Return(
                    (Expr.This.Field(wrapped).Prop("Current")).Cast(this.Type)
                    );

                // add explicit interface implementation
                PropertyDeclaration currentEn = en.AddProperty(typeof(Object),"Current");
                currentEn.Get.Return(Expr.This.Prop(current));
                currentEn.PrivateImplementationType = wrapped.Type;

                // add reset
                MethodDeclaration reset = en.AddMethod("Reset");
                reset.ImplementationTypes.Add( wrapped.Type );
                reset.Body.Add( Expr.This.Field(wrapped).Method("Reset").Invoke());

                // add movenext
                MethodDeclaration movenext = en.AddMethod("MoveNext");
                movenext.ImplementationTypes.Add( wrapped.Type );
                movenext.Signature.ReturnType = new TypeTypeDeclaration(typeof(bool));
                movenext.Body.Return( Expr.This.Field(wrapped).Method("MoveNext").Invoke());

                // add get enuemrator
                MethodDeclaration geten = col.AddMethod("GetEnumerator");
                geten.Attributes |= MemberAttributes.New;
                geten.ImplementationTypes.Add( new TypeTypeDeclaration(typeof(IEnumerable)) );
                geten.Signature.ReturnType = en;
                geten.Body.Return(Expr.New(en,Expr.This));
            }

            return col;
        }
        public ClassDeclaration AddClass(NamespaceDeclaration ns)
        {
            ClassDeclaration col = ns.AddClass(this.DictionaryName);

            // set base class as CollectionBase
            col.Parent = new TypeTypeDeclaration(typeof(DictionaryBase));

            // default constructor
            col.AddConstructor();

            // add indexer
            if (this.ItemGet || this.ItemSet)
            {
                IndexerDeclaration index = col.AddIndexer(
                    this.ValueType
                    );
                ParameterDeclaration pindex = index.Signature.Parameters.Add(KeyType,"key",false);

                // get body
                if (this.ItemGet)
                {
                    index.Get.Return(
                        (Expr.This.Prop("Dictionary").Item(Expr.Arg(pindex)).Cast(this.ValueType)
                        )
                        );
                }
                // set body
                if (this.ItemSet)
                {
                    index.Set.Add(
                        Stm.Assign(
                        Expr.This.Prop("Dictionary").Item(Expr.Arg(pindex)),
                        Expr.Value
                        )
                        );
                }

            }

            // add method
            if (this.Add)
            {
                MethodDeclaration add = col.AddMethod("Add");
                ParameterDeclaration pKey = add.Signature.Parameters.Add(this.KeyType,"key",true);
                ParameterDeclaration pValue = add.Signature.Parameters.Add(this.ValueType,"value",true);
                add.Body.Add(
                    Expr.This.Prop("Dictionary").Method("Add").Invoke(pKey,pValue)
                    );
            }

            // contains method
            if (this.Contains)
            {
                MethodDeclaration contains = col.AddMethod("Contains");
                contains.Signature.ReturnType = new TypeTypeDeclaration(typeof(bool));
                ParameterDeclaration pKey = contains.Signature.Parameters.Add(this.KeyType,"key",true);
                contains.Body.Return(
                    Expr.This.Prop("Dictionary").Method("Contains").Invoke(pKey)
                    );
            }

            // remove method
            if (this.Remove)
            {
                MethodDeclaration remove = col.AddMethod("Remove");
                ParameterDeclaration pKey = remove.Signature.Parameters.Add(this.KeyType,"key",true);

                remove.Body.Add(
                    Expr.This.Prop("Dictionary").Method("Remove").Invoke(pKey)
                    );
            }

            return col;
        }