wrangler-action/node_modules/object.assign/implementation.js
2023-08-07 15:11:15 -05:00

46 lines
1.4 KiB
JavaScript

'use strict';
// modified from https://github.com/es-shims/es6-shim
var objectKeys = require('object-keys');
var hasSymbols = require('has-symbols/shams')();
var callBound = require('call-bind/callBound');
var toObject = Object;
var $push = callBound('Array.prototype.push');
var $propIsEnumerable = callBound('Object.prototype.propertyIsEnumerable');
var originalGetSymbols = hasSymbols ? Object.getOwnPropertySymbols : null;
// eslint-disable-next-line no-unused-vars
module.exports = function assign(target, source1) {
if (target == null) { throw new TypeError('target must be an object'); }
var to = toObject(target); // step 1
if (arguments.length === 1) {
return to; // step 2
}
for (var s = 1; s < arguments.length; ++s) {
var from = toObject(arguments[s]); // step 3.a.i
// step 3.a.ii:
var keys = objectKeys(from);
var getSymbols = hasSymbols && (Object.getOwnPropertySymbols || originalGetSymbols);
if (getSymbols) {
var syms = getSymbols(from);
for (var j = 0; j < syms.length; ++j) {
var key = syms[j];
if ($propIsEnumerable(from, key)) {
$push(keys, key);
}
}
}
// step 3.a.iii:
for (var i = 0; i < keys.length; ++i) {
var nextKey = keys[i];
if ($propIsEnumerable(from, nextKey)) { // step 3.a.iii.2
var propValue = from[nextKey]; // step 3.a.iii.2.a
to[nextKey] = propValue; // step 3.a.iii.2.b
}
}
}
return to; // step 4
};