You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
40 lines
1.0 KiB
40 lines
1.0 KiB
2 years ago
|
var aCallable = require('../internals/a-callable');
|
||
|
|
var anObject = require('../internals/an-object');
|
||
|
|
var call = require('../internals/function-call');
|
||
|
|
var toIntegerOrInfinity = require('../internals/to-integer-or-infinity');
|
||
|
|
|
||
|
|
var $TypeError = TypeError;
|
||
|
|
var max = Math.max;
|
||
|
|
|
||
|
|
var SetRecord = function (set, size, has, keys) {
|
||
|
|
this.set = set;
|
||
|
|
this.size = size;
|
||
|
|
this.has = has;
|
||
|
|
this.keys = keys;
|
||
|
|
};
|
||
|
|
|
||
|
|
SetRecord.prototype = {
|
||
|
|
getIterator: function () {
|
||
|
|
return anObject(call(this.keys, this.set));
|
||
|
|
},
|
||
|
|
includes: function (it) {
|
||
|
|
return call(this.has, this.set, it);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// `GetSetRecord` abstract operation
|
||
|
|
// https://tc39.es/proposal-set-methods/#sec-getsetrecord
|
||
|
|
module.exports = function (obj) {
|
||
|
|
anObject(obj);
|
||
|
|
var numSize = +obj.size;
|
||
|
|
// NOTE: If size is undefined, then numSize will be NaN
|
||
|
|
// eslint-disable-next-line no-self-compare -- NaN check
|
||
|
|
if (numSize != numSize) throw $TypeError('Invalid size');
|
||
|
|
return new SetRecord(
|
||
|
|
obj,
|
||
|
|
max(toIntegerOrInfinity(numSize), 0),
|
||
|
|
aCallable(obj.has),
|
||
|
|
aCallable(obj.keys)
|
||
|
|
);
|
||
|
|
};
|