action-debian-package/node_modules/ramda/es/constructN.js
Dawid Dziurla 9308795b8b
update
2020-03-26 15:37:35 +01:00

88 lines
2.3 KiB
JavaScript

import _curry2 from "./internal/_curry2.js";
import curry from "./curry.js";
import nAry from "./nAry.js";
/**
* Wraps a constructor function inside a curried function that can be called
* with the same arguments and returns the same type. The arity of the function
* returned is specified to allow using variadic constructor functions.
*
* @func
* @memberOf R
* @since v0.4.0
* @category Function
* @sig Number -> (* -> {*}) -> (* -> {*})
* @param {Number} n The arity of the constructor function.
* @param {Function} Fn The constructor function to wrap.
* @return {Function} A wrapped, curried constructor function.
* @example
*
* // Variadic Constructor function
* function Salad() {
* this.ingredients = arguments;
* }
*
* Salad.prototype.recipe = function() {
* const instructions = R.map(ingredient => 'Add a dollop of ' + ingredient, this.ingredients);
* return R.join('\n', instructions);
* };
*
* const ThreeLayerSalad = R.constructN(3, Salad);
*
* // Notice we no longer need the 'new' keyword, and the constructor is curried for 3 arguments.
* const salad = ThreeLayerSalad('Mayonnaise')('Potato Chips')('Ketchup');
*
* console.log(salad.recipe());
* // Add a dollop of Mayonnaise
* // Add a dollop of Potato Chips
* // Add a dollop of Ketchup
*/
var constructN =
/*#__PURE__*/
_curry2(function constructN(n, Fn) {
if (n > 10) {
throw new Error('Constructor with greater than ten arguments');
}
if (n === 0) {
return function () {
return new Fn();
};
}
return curry(nAry(n, function ($0, $1, $2, $3, $4, $5, $6, $7, $8, $9) {
switch (arguments.length) {
case 1:
return new Fn($0);
case 2:
return new Fn($0, $1);
case 3:
return new Fn($0, $1, $2);
case 4:
return new Fn($0, $1, $2, $3);
case 5:
return new Fn($0, $1, $2, $3, $4);
case 6:
return new Fn($0, $1, $2, $3, $4, $5);
case 7:
return new Fn($0, $1, $2, $3, $4, $5, $6);
case 8:
return new Fn($0, $1, $2, $3, $4, $5, $6, $7);
case 9:
return new Fn($0, $1, $2, $3, $4, $5, $6, $7, $8);
case 10:
return new Fn($0, $1, $2, $3, $4, $5, $6, $7, $8, $9);
}
}));
});
export default constructN;