import { UNSET } from '../../_/symbols/unset.js';
import type { $Decrement, DecrementArgument, IsCompatible } from '../../type/index.js';
/** @inline */
export type DeepReadonly_<T> = T extends object ? {
    readonly [k in keyof T]: DeepReadonly_<T[k]>;
} : T;
/** @inline */
export type DeepReadonly<T extends object> = DeepReadonly_<T>;
/** @inline */
export type $DeepReadonly_<T> = T extends any ? DeepReadonly_<T> : never;
/** @inline */
export type $DeepReadonly<T extends object> = $DeepReadonly_<T>;
/**
 * Deep-readonly with depth-limit
 *
 * - Useful, because TS does not expand infinite recursive types in VSCode
 * - Non-distributive version
 */
export type DeepReadonlyN<TLength extends DecrementArgument, T, Options extends {
    skip: unknown;
} = {
    skip: UNSET;
}> = TLength extends 0 ? T : $Decrement<TLength> extends DecrementArgument ? DeepReadonlyN._ShouldSkip<T, Options['skip']> extends true ? T : T extends object ? {
    readonly [k in keyof T]: DeepReadonlyN<$Decrement<TLength>, T[k], Options>;
} : T : T;
/**
 * Deep-readonly with depth-limit
 *
 * - Useful, because TS does not expand infinite recursive types in VSCode
 * - Shallow-distributive version `$`
 */
export type $DeepReadonlyN<TLength extends DecrementArgument, T, Options extends {
    skip: unknown;
} = {
    skip: UNSET;
}> = T extends any ? DeepReadonlyN<TLength, T, Options> : never;
/**
 * Deep-readonly with depth-limit
 *
 * - Useful, because TS does not expand infinite recursive types in VSCode
 * - Deeply-distributive version `$$`
 */
export type $$DeepReadonlyN<TLength extends DecrementArgument, T, Options extends {
    skip: unknown;
} = {
    skip: UNSET;
}> = TLength extends 0 ? T : $Decrement<TLength> extends DecrementArgument ? DeepReadonlyN._ShouldSkip<T, Options['skip']> extends true ? T : {
    readonly [k in keyof T]: $$DeepReadonlyN<$Decrement<TLength>, T[k], Options>;
} : T;
export declare namespace DeepReadonlyN {
    /** @internal */
    type _ShouldSkip<T, skipOption> = IsCompatible<skipOption, UNSET> extends true ? false : [T] extends [skipOption] ? true : false;
}
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