improves

package.json

 {
   "name": "koishi-utils-schemagen",
-  "version": "1.1.4",
+  "version": "1.1.5",
   "description": "在 Koishi.js 中，使用类装饰器定义 Schema",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
@@ -25,7 +25,7 @@
     "koishijs",
     "utils-schema"
   ],
-  "author": "Nanahira",
+  "author": "Nanahira <nanahira@momobako.com>",
   "license": "MIT",
   "peerDependencies": {
     "koishi": "^4.0.0-alpha.10",

src/constants.ts

-export const SchemaMetaKey = '_koishi_schema_meta';
-export const SchemaKeysMetaKey = '_koishi_schemakeys_meta';
-export const SchemaClassKey = '_koishi_schema_class_meta';
+export const SchemaMetaKey = Symbol('_koishi_schema_meta');
+export const SchemaKeysMetaKey = Symbol('_koishi_schemakeys_meta');
+export const SchemaClassKey = Symbol('_koishi_schema_class_meta');

src/decorators.ts

@@ -34,12 +34,7 @@ function getStringFromNativeType(nativeType: any) {
   if (!nativeTypeString.startsWith('function ')) {
     return;
   }
-  const firstLeftBracketPos = nativeTypeString.indexOf('()');
-  if (firstLeftBracketPos === -1) {
-    return;
-  }
-  const typeString = nativeTypeString.slice(9, firstLeftBracketPos);
-  return typeString.toLowerCase();
+  return nativeType.name?.toLowerCase();
 }
 
 export function DefineSchema(options: SchemaOptions = {}): PropertyDecorator {