IOS端UTS插件在uni-app中不能在使用函数类型定义时返回promise

IOS端UTS插件在uni-app中不能在使用函数类型定义时返回promise

操作步骤：

--

预期结果：

不报错

实际结果：

Uncaught (in promise) method call failed: {
class = UTSSDKModulesQlPluginScanCode2IndexSwift;
keepAlive = 0;
method = (
{
name = options;
type = UTSSDKModulesQlPluginScanCode2ScanCodeOptionsJSONObject;
}
);
moduleName = "ql-plugin-scanCode2";
moduleType = "";
name = "s_scanCodeByJs";
nested = 0;
package = "";
params = (
{
album = 0;
scanType = QR;
viewType = 1;
}
);
type = method;
}

bug描述：

以下写法报错：

type ScanCodeApi = (options?: ScanCodeOptions) => Promise<string>;  
export const scanCode: ScanCodeApi = (options) => {  
    return new Promise(resolve => { resolve('') })  
}

以下写法不报错

写法一：

type ScanCodeApi = (options?: ScanCodeOptions) => string;  
export const scanCode: ScanCodeApi = (options) => {  
    return ''  
}

写法二：

export const scanCode = (options?: ScanCodeOptions):Promise<string> => {  
    return new Promise(resolve => { resolve('') })  
}