//#region src/types/object.d.ts
/**
 * 使用值类型过滤索引类型
 * @public
 */
type FilterRecordByValue<Obj extends Record<string, any>, ValueType> = { [Key in keyof Obj as Obj[Key] extends ValueType ? Key : never]: Obj[Key] };
/**
 * 提取Record中的可选索引
 * 注意可选在ts里不等于值可能为undefined吗，虽然在js里是一样的
 * 即\{age: number | undefined \} 和 \{ age?: number \} 不相等
 * 可选表示可以没有这个索引
 * @public
 */
type ExtractOptional<Obj extends Record<string, any>> = { [Key in keyof Obj as Record<string, any> extends Pick<Obj, Key> ? Key : never]: Obj[Key] };
/**
 * 判断Record的某个key是否为必选，也就是排除可选
 * 可选的可以用Record\<string,any\> ，也就是空的索引\{\} extends来判断
 * @public
 */
type IsRequired<Key extends keyof Obj, Obj extends Record<string, any>> = Record<string, any> extends Pick<Obj, Key> ? false : true;
/**
 * 提取Record中的必选索引
 * @public
 */
type ExtractRequired<Obj extends Record<string, any>> = { [Key in keyof Obj as IsRequired<Key, Obj> extends true ? Key : never]: Obj[Key] };
/**
 * 移除索引签名
 * 即 [key:string]:any
 * 这个允许任意key
 *
 * 这里利用了索引签名不能构造字面量类型（因为没有名字）
 * @public
 */
type RemoveIndexSignature<Obj extends Record<string, any>> = { [Key in keyof Obj as Key extends `${infer Str}` ? Str : never]: Obj[Key] };
/**
 * ts的类型会在使用时才计算
 * 这个拷贝触发类型计算，计算出最后的索引类型
 * @public
 */
type CopyRecord<Obj extends Record<string, any>> = { [Key in keyof Obj]: Obj[Key] };
/**
 * 执行Record的部分key为可选
 * @public
 */
type PartialBy<Obj extends Record<string, any>, Key extends keyof any> = CopyRecord<Partial<Pick<Obj, Extract<keyof Obj, Key>>> & Omit<Obj, Key>>;
/**
 * 获取Record的所有key的路径的联合类型
 * @public
 */
type AllKeyPath<Obj extends Record<string, any>> = { [Key in keyof Obj]: Key extends string ? Obj[Key] extends Record<string, any> ? Key | `${Key}.${AllKeyPath<Obj[Key]>}` : Key : never }[keyof Obj];
/**
 * 递归给对象字面量类型，添加Record\<string, any\>，即每一层可以额外添加任意字段
 * @public
 */
type DeepRecord<Obj extends Record<string, any>> = { [Key in keyof Obj]: Obj[Key] extends Record<string, any> ? DeepRecord<Obj[Key]> & Record<string, any> : Obj[Key] } & Record<string, any>;
/**
 * 给对象字面量类型所有key添加前缀
 * @public
 */
type PrefixKeyBy<Obj extends Record<string, any>, Prefix extends string> = { [Key in keyof Obj as `${Prefix}${Key & string}`]: Obj[Key] };
//#endregion
export { AllKeyPath, CopyRecord, DeepRecord, ExtractOptional, ExtractRequired, FilterRecordByValue, IsRequired, PartialBy, PrefixKeyBy, RemoveIndexSignature };