install-nix-action/node_modules/es-abstract/es2016.js
Domen Kožar 08403cd828
v5
2019-11-13 17:14:48 +01:00

80 lines
2.1 KiB
JavaScript

'use strict';
var GetIntrinsic = require('./GetIntrinsic');
var $Array = GetIntrinsic('%Array%');
var hasSymbols = require('has-symbols')();
var ES2015 = require('./es2015');
var assign = require('./helpers/assign');
var callBind = require('./helpers/callBind');
var $arrayPush = callBind($Array.prototype.push);
var $arraySlice = callBind($Array.prototype.slice);
var $arrayJoin = callBind($Array.prototype.join);
var ES2016 = assign(assign({}, ES2015), {
// https://www.ecma-international.org/ecma-262/7.0/#sec-samevaluenonnumber
SameValueNonNumber: function SameValueNonNumber(x, y) {
if (typeof x === 'number' || typeof x !== typeof y) {
throw new TypeError('SameValueNonNumber requires two non-number values of the same type.');
}
return this.SameValue(x, y);
},
// https://www.ecma-international.org/ecma-262/7.0/#sec-iterabletoarraylike
IterableToArrayLike: function IterableToArrayLike(items) {
var usingIterator;
if (hasSymbols) {
usingIterator = this.GetMethod(items, Symbol.iterator);
} else if (this.IsArray(items)) {
usingIterator = function () {
var i = -1;
var arr = this; // eslint-disable-line no-invalid-this
return {
next: function () {
i += 1;
return {
done: i >= arr.length,
value: arr[i]
};
}
};
};
} else if (this.Type(items) === 'String') {
var ES = this;
usingIterator = function () {
var i = 0;
return {
next: function () {
var nextIndex = ES.AdvanceStringIndex(items, i, true);
var value = $arrayJoin($arraySlice(items, i, nextIndex), '');
i = nextIndex;
return {
done: nextIndex > items.length,
value: value
};
}
};
};
}
if (typeof usingIterator !== 'undefined') {
var iterator = this.GetIterator(items, usingIterator);
var values = [];
var next = true;
while (next) {
next = this.IteratorStep(iterator);
if (next) {
var nextValue = this.IteratorValue(next);
$arrayPush(values, nextValue);
}
}
return values;
}
return this.ToObject(items);
}
});
module.exports = ES2016;