basant307/AI_Governance_Project

1import baseRest from './_baseRest.js';2import createWrap from './_createWrap.js';3import getHolder from './_getHolder.js';4import replaceHolders from './_replaceHolders.js';5 6/** Used to compose bitmasks for function metadata. */7var WRAP_BIND_FLAG = 1,8    WRAP_BIND_KEY_FLAG = 2,9    WRAP_PARTIAL_FLAG = 32;10 11/**12 * Creates a function that invokes the method at `object[key]` with `partials`13 * prepended to the arguments it receives.14 *15 * This method differs from `_.bind` by allowing bound functions to reference16 * methods that may be redefined or don't yet exist. See17 * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)18 * for more details.19 *20 * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic21 * builds, may be used as a placeholder for partially applied arguments.22 *23 * @static24 * @memberOf _25 * @since 0.10.026 * @category Function27 * @param {Object} object The object to invoke the method on.28 * @param {string} key The key of the method.29 * @param {...*} [partials] The arguments to be partially applied.30 * @returns {Function} Returns the new bound function.31 * @example32 *33 * var object = {34 *   'user': 'fred',35 *   'greet': function(greeting, punctuation) {36 *     return greeting + ' ' + this.user + punctuation;37 *   }38 * };39 *40 * var bound = _.bindKey(object, 'greet', 'hi');41 * bound('!');42 * // => 'hi fred!'43 *44 * object.greet = function(greeting, punctuation) {45 *   return greeting + 'ya ' + this.user + punctuation;46 * };47 *48 * bound('!');49 * // => 'hiya fred!'50 *51 * // Bound with placeholders.52 * var bound = _.bindKey(object, 'greet', _, '!');53 * bound('hi');54 * // => 'hiya fred!'55 */56var bindKey = baseRest(function(object, key, partials) {57  var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;58  if (partials.length) {59    var holders = replaceHolders(partials, getHolder(bindKey));60    bitmask |= WRAP_PARTIAL_FLAG;61  }62  return createWrap(key, bitmask, object, partials, holders);63});64 65// Assign default placeholders.66bindKey.placeholder = {};67 68export default bindKey;69