// copy from element-plus import type { CSSProperties, Plugin } from 'vue' type OptionalKeys<T extends Record<string, unknown>> = { [K in keyof T]: T extends Record<K, T[K]> ? never : K }[keyof T] type RequiredKeys<T extends Record<string, unknown>> = Exclude<keyof T, OptionalKeys<T>> type MonoArgEmitter<T, Keys extends keyof T> = <K extends Keys>(evt: K, arg?: T[K]) => void type BiArgEmitter<T, Keys extends keyof T> = <K extends Keys>(evt: K, arg: T[K]) => void export type EventEmitter<T extends Record<string, unknown>> = MonoArgEmitter<T, OptionalKeys<T>> & BiArgEmitter<T, RequiredKeys<T>> /** * 任意类型的异步函数 */ export type AnyPromiseFunction = (...arg: any[]) => PromiseLike<any> /** * 任意类型的普通函数 */ export type AnyNormalFunction = (...arg: any[]) => any /** * 任意类型的函数 */ export type AnyFunction = AnyNormalFunction | AnyPromiseFunction export type PartialReturnType<T extends (...args: unknown[]) => unknown> = Partial<ReturnType<T>> export type SFCWithInstall<T> = T & Plugin export type Nullable<T> = T | null /** * 字符串类型对象 */ export type Recordable<T = any> = Record<string, T> export type RefElement = Nullable<HTMLElement> export type CustomizedHTMLElement<T> = HTMLElement & T export interface Indexable<T> { [key: string]: T } export type Hash<T> = Indexable<T> export type TimeoutHandle = ReturnType<typeof globalThis.setTimeout> export type ComponentSize = 'large' | 'medium' | 'small' | 'mini' export type StyleValue = string | CSSProperties | Array<StyleValue> export type Mutable<T> = { -readonly [P in keyof T]: T[P] } type Merge<O extends object, T extends object> = { [K in keyof O | keyof T]: K extends keyof T ? T[K] : K extends keyof O ? O[K] : never; } /** * T = [ * { name: string; age: number; }, * { sex: 'male' | 'female'; age: string } * ] * => * MergeAll<T> = { * name: string; * sex: 'male' | 'female'; * age: string * } */ export type MergeAll<T extends object[], R extends object = object> = T extends [ infer F extends object, ...infer Rest extends object[], ] ? MergeAll<Rest, Merge<R, F>> : R