fix syntax

src/generators/dom/index.ts

@@ -190,10 +190,8 @@ export default function dom(
 			`if (!options || (!options.target && !options._root)) throw new Error("'target' is a required option");`}
 		@init(this, options);
 		${generator.usesRefs && `this.refs = {};`}
-
-		this._state =`@assign({},(%data||%noop)(),options.data)`;
-
-    ${generator.metaBindings}
+		this._state = @assign(${templateProperties.data ? '%data()' : '{}'}, options.data);
+		${generator.metaBindings}
 		${computations.length && `this._recompute({ ${Array.from(computationDeps).map(dep => `${dep}: 1`).join(', ')} }, this._state);`}
 		${options.dev &&
 			Array.from(generator.expectedProperties).map(