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// Copyright 2023-latest Tomoki Miyauchi. All rights reserved. MIT license.// This module is browser compatible.
// deno-lint-ignore-file no-explicit-any
/** * Alias for Any array types * * @internal */type AnyArray = readonly unknown[];
/** * @internal */type Union2Intersection<U> = (  U extends unknown ? (arg: U) => void : never) extends (arg: infer I) => void ? I  : never;
/** * Pop types * @typeParams - T Any array * * @internal */type Pop<T extends AnyArray> = T extends [...infer Head, unknown] ? Head  : T extends readonly [...infer Head, unknown] ? readonly [...Head]  : never;
/** * Shift types * @typeParams S - Any array * * @internal */type Shift<S extends AnyArray, T extends AnyArray> = T extends [  ...S,  ...infer Rest,] ? Rest  : never;
/** * @internal */type UnionFactorial<T extends AnyArray> = T extends readonly [] ? never  : T | UnionFactorial<Pop<T>>;
/** * @internal */type OverloadsByArgs<  Args extends AnyArray,  FullArgs extends AnyArray,  ReturnValue,> = Args extends unknown  ? CurriedWithFixArgs<Args, Shift<Args, FullArgs>, ReturnValue>  : never;
/** * @internal */type CurriedWithFixArgs<  Args extends AnyArray,  RestArgs extends AnyArray,  ReturnValue,> = (...args: Args) => Curried<RestArgs, ReturnValue>;
/** * Curry types * * @internal */type Curried<Args extends AnyArray, ReturnValue> = Args extends [] ? ReturnValue  : Union2Intersection<    OverloadsByArgs<UnionFactorial<Args>, Args, ReturnValue>  >;
/** * Return curried function. * * @param fn - The function to curry * @returns The new curried function * * @remarks * Maximum number of arity is `19`. Beyond that, the type system will breaks. * * @example * ```ts * import { curry } from "https://deno.land/x/curry@$VERSION/mod.ts"; * const replace = (from: string, to: string, val: string) => val.replace(from, to) * const curriedReplace = curry(replace) * curriedReplace('hello', 'hi', 'hello world') // 'hi world' * curriedReplace('hello')('hi', 'hello world') // 'hi world' * curriedReplace('hello')('hi')('hello world') // 'hi world' * ``` */const curry = <T extends unknown[], R>(  fn: (...args: T) => R,): T["length"] extends 0 ? () => R : Curried<T, R> => {  const curried: any = (...t: T) =>    t.length >= fn.length ? fn(...t) : curried.bind(null, ...t);
  return curried;};
export { curry };export type { Pop, Shift, Union2Intersection, UnionFactorial };