import type { EmptyArr, EmptyObject } from '../../mod.js';
import { Def } from '../../mod.js';
/**  ## Default : 提供一个默认值数据
@example Usage : interface
```ts
const default_data: Default = {
  default: () => 'default data',
}
const data = default_data.default()
assert(data == 'default data')
```
@example Usage : default implement
```ts
const res = match(value,[Default.default(),'jiojio'])
assert(res)
```
@category Interface
 */
export interface Default<T = unknown> {
    default(): T;
}
/** ## `implements_default` : duck type to judge Default type  @category Interface */
export declare function implements_default(value: unknown): value is Default<unknown>;
type DefaultRsult<T> = T extends number ? 0 : T extends string ? '' : T extends bigint ? bigint : T extends boolean ? boolean : T extends () => any ? () => void : T extends null ? null : T extends undefined ? undefined : T extends Array<any> ? EmptyArr : T extends Default<infer R> ? R : Def;
interface DefaultValue extends Default<typeof Def> {
    function: () => void;
    number: number;
    string: string;
    object: EmptyObject;
    array: EmptyArr;
    bigint: bigint;
    boolean: boolean;
    null: null;
    underfind: undefined;
    /** ### `match` : 为基础类型匹配默认值 */
    match: <T extends 'bigint' | 'boolean' | 'number' | 'string' | 'function' | 'object' | 'array' | 'null' | 'undefined'>(inp: T) => T extends 'bigint' ? bigint : T extends 'boolean' ? boolean : T extends 'number' ? 0 : T extends 'string' ? '' : T extends 'function' ? () => void : T extends 'object' ? EmptyObject : T extends 'array' ? EmptyArr : T extends 'null' ? null : T extends 'undefined' ? undefined : never;
    /** ### `of` :  求出某个数据类型的默认数据
    + 如果没有默认实现的数据,则返回{@link Def}
    @example Usage
    ```ts
    class Demo {
      constructor(public name: string) {}
  
      static default(): Demo {
        return new Demo('default')
      }
    }
    assert(equal(Default.of(Demo).name, 'default'))
    ```
     */
    of<T>(d: T): DefaultRsult<T>;
}
/** Default : 基本类型的Default实现 */
export declare const Default: DefaultValue;
export {};
//# sourceMappingURL=default.d.ts.map