40 lines
1.1 KiB
JavaScript
40 lines
1.1 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
var GetIntrinsic = require('get-intrinsic');
|
||
|
|
|
||
|
|
var $Object = require('es-object-atoms');
|
||
|
|
var $StringPrototype = GetIntrinsic('%String.prototype%');
|
||
|
|
var $SyntaxError = require('es-errors/syntax');
|
||
|
|
var $TypeError = require('es-errors/type');
|
||
|
|
|
||
|
|
var DefinePropertyOrThrow = require('./DefinePropertyOrThrow');
|
||
|
|
|
||
|
|
var setProto = require('../helpers/setProto');
|
||
|
|
|
||
|
|
// https://262.ecma-international.org/6.0/#sec-stringcreate
|
||
|
|
|
||
|
|
module.exports = function StringCreate(value, prototype) {
|
||
|
|
if (typeof value !== 'string') {
|
||
|
|
throw new $TypeError('Assertion failed: `S` must be a String');
|
||
|
|
}
|
||
|
|
|
||
|
|
var S = $Object(value);
|
||
|
|
if (prototype !== $StringPrototype) {
|
||
|
|
if (setProto) {
|
||
|
|
setProto(S, prototype);
|
||
|
|
} else {
|
||
|
|
throw new $SyntaxError('StringCreate: a `proto` argument that is not `String.prototype` is not supported in an environment that does not support setting the [[Prototype]]');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var length = value.length;
|
||
|
|
DefinePropertyOrThrow(S, 'length', {
|
||
|
|
'[[Configurable]]': false,
|
||
|
|
'[[Enumerable]]': false,
|
||
|
|
'[[Value]]': length,
|
||
|
|
'[[Writable]]': false
|
||
|
|
});
|
||
|
|
|
||
|
|
return S;
|
||
|
|
};
|