const xx=ref<State>({yy:x}) xx.value 类型不等于State吗？
type State ={
yy:string;
}
type ResultObj={
state:State;
}
const xx=ref<State>({yy:'xx'})
function result():ResultObj{
return {
state:xx.value
} as ResultObj
}
**
异常：
error: java.lang.ClassCastException: io.dcloud.uniapp.vue.UTSReactiveJSONObject cannot be cast to uni.UNIC2451D5.State**
booleen (作者)
//这个是其他文件导入的函数，只要是用来更新对象，我想抽出来
export function UtilSetState<T>(options:SetStateArgs):T{
const {objValue ,state,setCache,localKey}=options;
for (let key in objValue) {
state[key] = objValue[key];
}
if(setCache==true){
setLocalStore(state,localKey)
}
//这里这个代码导致的！！！！！！！！！！！！！！！！，这有什么方法解决吗
return state as T;
}
const xx=ref<State>({yy:x}) xx.value 类型不等于State吗？
type State ={
yy:string;
}
type ResultObj={
state:State;
}
const xx=ref<State>({yy:'xx'})
function setState(obj:UTSJSONObject){
const copyState=JSON.parse<UTSJSONObject>(JSON.stringify(state.value))!;
state.value=UtilSetState<State>({
state:copyState,
objValue:obj,
setCache:openLocalStore,
localKey:localKey
} as SetStateArgs);
}
function result():ResultObj{
return {
state:xx.value
} as ResultObj
}
2025-03-16 23:19
booleen (作者)
报错定位不准确，这种情况，定位到。function result():ResultObj{
return {
state:xx.value
} as ResultObj
}这个函数最后一行了，期待下一版本解决这个提示问题
2025-03-16 23:20
DCloud_UNI_FengXY
回复 booleen:
const copyState = JSON.parse<UTSJSONObject>(JSON.stringify(state.value))!;
解析出来的是UTSJSONObject，是不能赋值给State类型的。你应该解析成State类型：
JSON.parse<State>(JSON.stringify(state.value))!;
报错位置的问题：因为你给的代码都是片段，没法排查。
2025-03-17 11:03