action-debian-package/node_modules/ramda/es/lensPath.js

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2020-03-26 14:37:35 +00:00
import _curry1 from "./internal/_curry1.js";
import assocPath from "./assocPath.js";
import lens from "./lens.js";
import path from "./path.js";
/**
* Returns a lens whose focus is the specified path.
*
* @func
* @memberOf R
* @since v0.19.0
* @category Object
* @typedefn Idx = String | Int
* @typedefn Lens s a = Functor f => (a -> f a) -> s -> f s
* @sig [Idx] -> Lens s a
* @param {Array} path The path to use.
* @return {Lens}
* @see R.view, R.set, R.over
* @example
*
* const xHeadYLens = R.lensPath(['x', 0, 'y']);
*
* R.view(xHeadYLens, {x: [{y: 2, z: 3}, {y: 4, z: 5}]});
* //=> 2
* R.set(xHeadYLens, 1, {x: [{y: 2, z: 3}, {y: 4, z: 5}]});
* //=> {x: [{y: 1, z: 3}, {y: 4, z: 5}]}
* R.over(xHeadYLens, R.negate, {x: [{y: 2, z: 3}, {y: 4, z: 5}]});
* //=> {x: [{y: -2, z: 3}, {y: 4, z: 5}]}
*/
var lensPath =
/*#__PURE__*/
_curry1(function lensPath(p) {
return lens(path(p), assocPath(p));
});
export default lensPath;